Open source alternatives to paid SaaS apps: Notion, Slack, Auth0, Vercel and more. Curated list with licenses and GitHub stars.
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README
Awesome Open Source SaaS Alternatives 
A curated list of open source alternatives to paid SaaS apps, with licenses and GitHub stars.
▶ Watch: 10 Open-Source Alternatives That Replace Paid SaaS (2026)
Looking for a free, self-hostable replacement for a paid tool? Find the tool below and pick an alternative. Want to add yours? Submit it here, see CONTRIBUTING.md.
Contents
- Productivity
- Communication
- Design
- Analytics
- Automation
- Storage
- E-commerce
- CRM
- Project Management
- Marketing
- AI
- Security
- Developer Tools
- Monitoring
- Customer Support
- Forms
- Finance
- Video
- Publishing
- Product
- Education
Productivity
Notion
All-in-one workspace for notes, docs and wikis.
| Alternative | Description | License | Stars |
|---|---|---|---|
| AppFlowy | Privacy-first Notion alternative built with Flutter and Rust. | AGPL-3.0 | ★ 78k |
| AFFiNE | Docs, whiteboards and databases in one local-first workspace. | MIT | ★ 74k |
| SiYuan | Local-first personal knowledge management system. | AGPL-3.0 | ★ 47k |
| Logseq | Privacy-first outliner for notes and knowledge. No native databases. | AGPL-3.0 | ★ 45k |
| Huly | Huly — All-in-One Project Management Platform (alternative to Linear, Jira, Slack, Notion, Motion) | EPL-2.0 | ★ 28k |
| focalboard | Focalboard is an open source, self-hosted alternative to Trello, Notion, and Asana. | NOASSERTION | ★ 27k |
| docmost | Docmost is an open-source collaborative wiki and documentation software. It is an open-source alternative to Confluence and Notion. | AGPL-3.0 | ★ 22k |
| Oxynote | Self-hosted wiki with live Prometheus and SQL charts and PR-style reviews for important page changes. | Apache-2.0 | ★ 226 |
Airtable
Spreadsheet-database hybrid.
| Alternative | Description | License | Stars |
|---|---|---|---|
| NocoDB | Turns any database into a smart spreadsheet. | AGPL-3.0 | ★ 65k |
| Baserow | No-code database and application builder. | MIT | ★ 6.2k |
Calendly
Scheduling and booking.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Cal.com | Scheduling infrastructure for everyone. | MIT | ★ 49k |
Microsoft Office
Documents, spreadsheets and presentations.
| Alternative | Description | License | Stars |
|---|---|---|---|
| DeckCraft | Presentations and slide shows: an open-source, clean-room reimplementation of Microsoft PowerPoint in pure Rust. Part of the ArtCraft Crafting Apps. | Apache-2.0 | ★ 3.8k |
| GridCraft | GridCraft: an open-source, clean-room spreadsheet (Microsoft Excel-style) in pure Rust. | Apache-2.0 | ★ 5.8k |
| LibreOffice | Full office suite with Writer, Calc and Impress. | GPL-3.0 | ★ 4.5k |
| ONLYOFFICE | Online editors compatible with Office formats. | AGPL-3.0 | ★ 7.0k |
Evernote
Note taking.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Joplin | Note-taking app with end-to-end encrypted sync. | AGPL-3.0 | ★ 57k |
| notesnook | A fully open source & end-to-end encrypted note taking alternative to Evernote. | GPL-3.0 | ★ 15k |
DocuSign
E-signatures.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Documenso | Open source document signing. | AGPL-3.0 | ★ 15k |
Teal
Teal: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| ai-resume-builder | Open-source AI resume builder & optimizer | See repo | ★ 11 |
Kickresume
Kickresume: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| ai-resume-builder | Open-source AI resume builder & optimizer | See repo | ★ 11 |
Adobe Acrobat
Adobe Acrobat: paid Adobe Creative Cloud product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| PdfCraft | PdfCraft: An open-source PDF reader and editor written from scratch in Rust | Apache-2.0 | ★ 16k |
Awesome Screenshot
Awesome Screenshot: freemium screenshot and screen recording tool.
| Alternative | Description | License | Stars |
|---|---|---|---|
| OpenCapture | Local full-page screenshot extension with annotations, blur, and PNG or PDF export. | AGPL-3.0 | ★ 39 |
Confluence
Confluence: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| docmost | Docmost is an open-source collaborative wiki and documentation software. It is an open-source alternative to Confluence and Notion. | AGPL-3.0 | ★ 22k |
Communication
Slack
Team chat and collaboration.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Mattermost | Self-hosted secure team collaboration platform. | MIT / AGPL-3.0 | ★ 39k |
| Rocket.Chat | Open source team chat with omnichannel support. | MIT | ★ 46k |
| Zulip | Threaded team chat that keeps conversations organized. | Apache-2.0 | ★ 26k |
| Huly | Huly — All-in-One Project Management Platform (alternative to Linear, Jira, Slack, Notion, Motion) | EPL-2.0 | ★ 28k |
| Quiet | A private, p2p alternative to Slack and Discord built on Tor & IPFS | GPL-3.0 | ★ 2.7k |
Zoom
Video conferencing.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Jitsi Meet | Secure, scalable video conferencing you can self-host. | Apache-2.0 | ★ 30k |
| mirotalksfu | 🏆 Self-hosted, open-source WebRTC video conferencing platform for real-time communication and collaboration. A modern alternative to Zoom, Google Meet, Jitsi M | AGPL-3.0 | ★ 3.1k |
Discord
Discord: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Quiet | A private, p2p alternative to Slack and Discord built on Tor & IPFS | GPL-3.0 | ★ 2.7k |
Claude Tag
Claude Tag: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| open-claude-tag | Self-hostable channel-native AI teammate for Slack. Open source alternative to Claude Tag. LLM-agnostic. | MIT | ★ 17 |
Twilio
Twilio: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| fonoster | 🚀 The open-source alternative to Twilio. | MIT | ★ 8.1k |
Google Meet
Google Meet: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| mirotalksfu | 🏆 Self-hosted, open-source WebRTC video conferencing platform for real-time communication and collaboration. A modern alternative to Zoom, Google Meet, Jitsi M | AGPL-3.0 | ★ 3.1k |
Microsoft Teams
Microsoft Teams: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| mirotalksfu | 🏆 Self-hosted, open-source WebRTC video conferencing platform for real-time communication and collaboration. A modern alternative to Zoom, Google Meet, Jitsi M | AGPL-3.0 | ★ 3.1k |
Design
Figma
Collaborative interface design.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Penpot | Design and prototyping platform for design and code teams. | MPL-2.0 | ★ 61k |
Adobe Photoshop
Raster image editing.
| Alternative | Description | License | Stars |
|---|---|---|---|
| PhotoCraft | PhotoCraft: An open-source, photo editor written from scratch in Rust | Apache-2.0 | ★ 68k |
| Krita | Digital painting and illustration. For photo editing, see GIMP. | GPL-3.0 | ★ 11k |
| GIMP | Long-standing free image editor. | GPL-3.0 |
Miro
Online whiteboard for collaboration.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Excalidraw | Virtual hand-drawn style whiteboard. | MIT | ★ 134k |
Webflow
Webflow: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Instatic | The open-source alternative to Webflow, Framer and WordPress. Agentic self-hosted visual CMS outputting clean static pages. Users, roles, plugins, content, data | MIT | ★ 9.0k |
Framer
Framer: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Instatic | The open-source alternative to Webflow, Framer and WordPress. Agentic self-hosted visual CMS outputting clean static pages. Users, roles, plugins, content, data | MIT | ★ 9.0k |
Photoroom
Photoroom: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| resale-photo-enhancer | Open-source AI product photo studio for resellers | See repo | ★ 8 |
Lucidchart
Diagramming and flowcharts.
| Alternative | Description | License | Stars |
|---|---|---|---|
| draw.io | Diagramming for flowcharts and architecture. | Apache-2.0 | ★ 8.9k |
Lovart
Lovart: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Open-AI-Design-Agent | Open-source AI design agent | MIT | ★ 458 |
Looka
Looka: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| ai-logo-studio | Open-source AI logo generator & brand identity studio | See repo | ★ 9 |
Watermarkremover.io
Watermarkremover.io: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| clearmark-ai | Open-source AI watermark remover | See repo | ★ 9 |
HitPaw
HitPaw: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| clearmark-ai | Open-source AI watermark remover | See repo | ★ 9 |
Brandmark
Brandmark: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| ai-logo-studio | Open-source AI logo generator & brand identity studio | See repo | ★ 9 |
Galileo AI
Galileo AI: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Open-AI-Design-Agent | Open-source AI design agent | MIT | ★ 458 |
Flair AI
Flair AI: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| amazon-product-studio | Open-source AI product photography studio for Amazon sellers | See repo | ★ 18 |
Pebblely
Pebblely: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| pet-product-studio | Open-source AI pet product ad generator | See repo | ★ 5 |
Magic Patterns
Magic Patterns: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Open-AI-Design-Agent | Open-source AI design agent | MIT | ★ 458 |
RoomGPT
RoomGPT: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| ai-room-declutter | Open-source AI room declutter & interior redesign tool | See repo | ★ 8 |
Reimagine Home
Reimagine Home: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| ai-room-declutter | Open-source AI room declutter & interior redesign tool | See repo | ★ 8 |
Booth AI
Booth AI: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| amazon-product-studio | Open-source AI product photography studio for Amazon sellers | See repo | ★ 18 |
Adobe Illustrator
Adobe Illustrator: paid Adobe Creative Cloud product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| VectorCraft | VectorCraft: An open-source, vector art tool written from scratch in Rust | Apache-2.0 | ★ 9.9k |
Adobe InDesign
Adobe InDesign: paid Adobe Creative Cloud product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| DesignCraft | DesignCraft: An open-source page and layout design editor written from scratch in Rust | Apache-2.0 | ★ 4.4k |
Adobe Lightroom
Adobe Lightroom: paid Adobe Creative Cloud product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| LightCraft | LightCraft: An open-source non-destructive photo editor written from scratch in Rust | Apache-2.0 | ★ 14k |
Analytics
Google Analytics
Website and product analytics.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Plausible | Lightweight, privacy-friendly web analytics. | AGPL-3.0 | ★ 30k |
| Umami | Simple, fast, privacy-focused analytics. | MIT | ★ 39k |
| PostHog | Product analytics suite with session replay. Web analytics is one part. | MIT | ★ 40k |
| matomo | Empowering People Ethically 🚀 — Matomo is hiring! Join us → https://matomo.org/jobs Matomo is the leading open-source alternative to Google Analytics, giving y | GPL-3.0 | ★ 22k |
| rybbit | 🐸 Rybbit - open-source and privacy-friendly alternative to Google Analytics that is 10x more intuitive. | AGPL-3.0 | ★ 13k |
| vince | Self Hosted Alternative To Google Analytics | AGPL-3.0 | ★ 2.0k |
| litlyx | Powerful Analytics Solution. Setup in 30 seconds. Display all your data on a Simple, AI-powered dashboard. Fully self-hostable and GDPR compliant. Alternative t | Apache-2.0 | ★ 1.7k |
| xyne | AI-first Search & Answer Engine for work. Open-source alternative to Glean. | Apache-2.0 | ★ 696 |
Mixpanel
Mixpanel: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| openpanel | OpenPanel is an open-source web and product analytics platform, an open-source alternative to Mixpanel with optional self-hosting. | AGPL-3.0 | ★ 7.2k |
| litlyx | Powerful Analytics Solution. Setup in 30 seconds. Display all your data on a Simple, AI-powered dashboard. Fully self-hostable and GDPR compliant. Alternative t | Apache-2.0 | ★ 1.7k |
Tableau / Looker
Business intelligence.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Metabase | Lightweight BI for dashboards and questions without SQL. | AGPL-3.0 | ★ 50k |
| Apache Superset | Data exploration and visualization platform. | Apache-2.0 | ★ 75k |
| dataease | 🔥 人人可用的开源 BI 工具，数据可视化神器。An open-source BI tool alternative to Tableau. | NOASSERTION | ★ 25k |
| graphic-walker | An open source alternative to Tableau. Embeddable visual analytic | Apache-2.0 | ★ 3.3k |
Automation
Zapier
No-code workflow automation.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Activepieces | No-code business automation with an extensible piece system. | MIT | ★ 25k |
| Huginn | Build agents that monitor and act on your behalf. | MIT | ★ 50k |
| n8n | Workflow automation with a visual editor. Fair-code, not OSI open source. | Sustainable Use (fair-code) | ★ 208k |
| bytechef | Open-source AI agents and workflow automation. Self-host or embed in your SaaS. Apache 2.0 alternative to n8n and Zapier. | NOASSERTION | ★ 1.0k |
Composio
Composio: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| open-agent-connector | Open-source, self-hosted alternative to Composio, Nango, Merge.dev, and Arcade.dev for AI agent integrations. Run GitHub, Slack, Hacker News, and custom HTTP ac | Apache-2.0 | ★ 843 |
Merge
Merge: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| open-agent-connector | Open-source, self-hosted alternative to Composio, Nango, Merge.dev, and Arcade.dev for AI agent integrations. Run GitHub, Slack, Hacker News, and custom HTTP ac | Apache-2.0 | ★ 843 |
Arcade.dev
Arcade.dev: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| open-agent-connector | Open-source, self-hosted alternative to Composio, Nango, Merge.dev, and Arcade.dev for AI agent integrations. Run GitHub, Slack, Hacker News, and custom HTTP ac | Apache-2.0 | ★ 843 |
Nango
Nango: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| open-agent-connector | Open-source, self-hosted alternative to Composio, Nango, Merge.dev, and Arcade.dev for AI agent integrations. Run GitHub, Slack, Hacker News, and custom HTTP ac | Apache-2.0 | ★ 843 |
Storage
Dropbox
Cloud file storage and sync.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Nextcloud | Self-hosted file sync, sharing and collaboration platform. | AGPL-3.0 | ★ 37k |
| Syncthing | Peer-to-peer file sync. No cloud storage or share links. | MPL-2.0 | ★ 90k |
E-commerce
Shopify
Online store platform.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Medusa | Composable commerce engine. | MIT | ★ 37k |
| Saleor | Headless commerce backend. No storefront out of the box. | BSD-3-Clause | ★ 23k |
Botika
Botika: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| ai-tryon | Open-source AI virtual try-on tool | See repo | ★ 15 |
Lalaland
Lalaland: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| ai-tryon | Open-source AI virtual try-on tool | See repo | ★ 15 |
CRM
Salesforce
Customer relationship management.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Twenty | Modern open source CRM. | AGPL-3.0 | ★ 59k |
Kommo
Kommo: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| DeskcommCRM | Open-source AI sales OS — self-hosted CRM with native AI agents + WhatsApp (WAHA). Open alternative to Kommo, Octadesk & Intercom for any business that sells by | MIT | ★ 4.7k |
Project Management
Jira
Issue and project tracking.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Plane | Issues, cycles and modules for modern teams. | AGPL-3.0 | ★ 61k |
| Huly | Huly — All-in-One Project Management Platform (alternative to Linear, Jira, Slack, Notion, Motion) | EPL-2.0 | ★ 28k |
| Paca | AI-native, free, open-source alternative to Jira, Trello, ClickUp & Monday. Built for Scrum teams where humans and AI agents collaborate as equals — on the same | Apache-2.0 | ★ 2.0k |
Trello
Kanban boards.
| Alternative | Description | License | Stars |
|---|---|---|---|
| WeKan | Open source kanban board. | MIT | ★ 21k |
| focalboard | Focalboard is an open source, self-hosted alternative to Trello, Notion, and Asana. | NOASSERTION | ★ 27k |
| Paca | AI-native, free, open-source alternative to Jira, Trello, ClickUp & Monday. Built for Scrum teams where humans and AI agents collaborate as equals — on the same | Apache-2.0 | ★ 2.0k |
Asana
Asana: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| focalboard | Focalboard is an open source, self-hosted alternative to Trello, Notion, and Asana. | NOASSERTION | ★ 27k |
Linear
Linear: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Huly | Huly — All-in-One Project Management Platform (alternative to Linear, Jira, Slack, Notion, Motion) | EPL-2.0 | ★ 28k |
| ItsAPlan | Open-source, self-hosted alternative to Linear and Plane. Project management and issue tracking where teams and AI agents work side by side to plan and ship pro | AGPL-3.0 | ★ 1.4k |
ClickUp
ClickUp: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Paca | AI-native, free, open-source alternative to Jira, Trello, ClickUp & Monday. Built for Scrum teams where humans and AI agents collaborate as equals — on the same | Apache-2.0 | ★ 2.0k |
Monday.com
Monday.com: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Paca | AI-native, free, open-source alternative to Jira, Trello, ClickUp & Monday. Built for Scrum teams where humans and AI agents collaborate as equals — on the same | Apache-2.0 | ★ 2.0k |
Marketing
Mailchimp
Email marketing.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Listmonk | Newsletter and mailing list manager. No automation workflows. | AGPL-3.0 | ★ 24k |
| forwardemail.net | Privacy-focused encrypted email for everyone. All-in-one alternative to Gmail + Mailchimp + Sendgrid. | NOASSERTION | ★ 1.7k |
Linktree
Linktree: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| LinkFree | A free and open source alternative to LinkTree | Apache-2.0 | ★ 691 |
Braze
Braze: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| laudspeaker | 📢 Laudspeaker is an Open Source Customer Engagement and Product Onboarding Platform. Open Source alternative to Braze / One Signal / Customer Io / Appcues / Pe | NOASSERTION | ★ 2.6k |
OneSignal
OneSignal: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| laudspeaker | 📢 Laudspeaker is an Open Source Customer Engagement and Product Onboarding Platform. Open Source alternative to Braze / One Signal / Customer Io / Appcues / Pe | NOASSERTION | ★ 2.6k |
Ahrefs
Ahrefs: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| open-seo | Open source alternative to Semrush and Ahrefs | MIT | ★ 24k |
Customer.io
Customer.io: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| laudspeaker | 📢 Laudspeaker is an Open Source Customer Engagement and Product Onboarding Platform. Open Source alternative to Braze / One Signal / Customer Io / Appcues / Pe | NOASSERTION | ★ 2.6k |
Semrush
Semrush: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| geo-checker | Open-source AI GEO (Generative Engine Optimization) auditor | See repo | ★ 15 |
Hootsuite
Hootsuite: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Free-AI-Social-Media-Scheduler | Free open-source AI social media scheduler — self-hostable alternative to Postiz, Buffer, and Hootsuite with built-in AI content generation. | MIT | ★ 6 |
Buffer
Buffer: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| social-post | Open-source AI social media post generator | See repo | ★ 48 |
| Free-AI-Social-Media-Scheduler | Free open-source AI social media scheduler — self-hostable alternative to Postiz, Buffer, and Hootsuite with built-in AI content generation. | MIT | ★ 6 |
| Unsora | AI media generation and social post scheduling app with a REST API and MCP server for AI agents. | AGPL-3.0 | ★ 3 |
SendGrid
SendGrid: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| useSend | Open source alternative to Resend, Sendgrid, Postmark etc. | AGPL-3.0 | ★ 4.7k |
| forwardemail.net | Privacy-focused encrypted email for everyone. All-in-one alternative to Gmail + Mailchimp + Sendgrid. | NOASSERTION | ★ 1.7k |
| relay | 📨 Open-Source Email API for Developers. Cloud & Self-hosted Alternative to SES, Mailgun, SendGrid. | AGPL-3.0 | ★ 918 |
Resend
Resend: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| useSend | Open source alternative to Resend, Sendgrid, Postmark etc. | AGPL-3.0 | ★ 4.7k |
| temps | AI-native open-source alternative to Vercel + Sentry + PostHog + Pingdom + Resend + E2B. 440+ CLI operations with drop-in skills for Claude Code, Codex & OpenCo | Apache-2.0 | ★ 851 |
Screaming Frog
Screaming Frog: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| LibreCrawl | Free desktop SEO crawler - open source alternative to Screaming Frog and similar tools. Crawl websites, analyze links, extract SEO data, and export results with | MIT | ★ 1.1k |
Mailgun
Mailgun: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| relay | 📨 Open-Source Email API for Developers. Cloud & Self-hosted Alternative to SES, Mailgun, SendGrid. | AGPL-3.0 | ★ 918 |
| posta | Self-hosted email delivery platform that enables applications to send emails via HTTP APIs while handling SMTP delivery, templates, storage, security, and analy | AGPL-3.0 | ★ 601 |
Surfer SEO
Surfer SEO: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| geo-checker | Open-source AI GEO (Generative Engine Optimization) auditor | See repo | ★ 15 |
SocialPilot
SocialPilot: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| brightbean-studio | Open-source, self-hostable social media management platform. Schedule, publish, and manage content across 10+ platforms from a single dashboard. Free alternativ | AGPL-3.0 | ★ 2.5k |
Sendible
Sendible: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| brightbean-studio | Open-source, self-hostable social media management platform. Schedule, publish, and manage content across 10+ platforms from a single dashboard. Free alternativ | AGPL-3.0 | ★ 2.5k |
Reply.io
Reply.io: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| mail-wise | Open-source AI email composer & cold outreach assistant | See repo | ★ 7 |
Arcads
Arcads: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Open-AI-UGC | Open AI UGC | MIT | ★ 376 |
Lavender
Lavender: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| mail-wise | Open-source AI email composer & cold outreach assistant | See repo | ★ 7 |
MakeUGC
MakeUGC: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Open-AI-UGC | Open AI UGC | MIT | ★ 376 |
BuiltWith
BuiltWith: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| looot-techstack | Self-hosted BuiltWith and Wappalyzer alternative: tech stack lookups from several providers side by side, paid per domain via looot. Demo mode. | MIT | ★ 0 |
AI
ChatGPT
AI chat assistant.
| Alternative | Description | License | Stars |
|---|---|---|---|
| open-spaces | Free, open-source alternative to ChatGPT Spaces: a self-hostable AI workspace for shared pages and conversations. | MIT | ★ 921 |
| Open WebUI | Self-hosted AI interface for Ollama and OpenAI-compatible APIs. | Open WebUI License (BSD-3 based) | ★ 156k |
| Ollama | Run large language models locally. | MIT | ★ 184k |
| LibreChat | Multi-provider ChatGPT-style interface. | MIT | ★ 46k |
| jan | Jan is an open source alternative to ChatGPT that runs 100% offline on your computer. | NOASSERTION | ★ 45k |
Midjourney
AI image generation.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Open-Generative-AI | Self-hostable AI image and video generation studio with 600+ models. | MIT | ★ 31k |
| ComfyUI | Node-based diffusion workflow engine. Quality depends on the model you load. | GPL-3.0 | ★ 139k |
| Stable Diffusion WebUI | Self-hosted image generation with Stable Diffusion models. | AGPL-3.0 | ★ 165k |
GitHub Copilot
AI coding assistant.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Continue | Open source AI code assistant for IDEs. | Apache-2.0 | ★ 36k |
| Tabby | Self-hosted AI coding assistant. | Apache-2.0 (core) | ★ 34k |
Claude Cowork
Claude Cowork: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| open-dots | Open-source, self-hosted AI agent workspace and alternative to OpenAI Dots, Meta Muse, Grok Bot, Instinct, Manus Cue, Claude Cowork, and ChatGPT agent. MIT-lice | See repo | ★ 5.9k |
Character.AI
Character.AI: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| ai-character-studio | Open-source AI character creator & roleplay chat studio | See repo | ★ 23 |
| open-character-ai | Open-source Character.AI alternative | See repo | ★ 57 |
Freepik
Freepik: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Vibe-Workflow | Free, open-source alternative to Weavy AI, Krea Nodes, Freepik Spaces & FloraFauna AI — node-based AI workflow builder for generative image & video pipelines | MIT | ★ 625 |
| Open-Generative-AI | Self-hostable AI image and video generation studio with 600+ models. | MIT | ★ 31k |
Grok Bot
Grok Bot: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| open-grok-bot | Open-source alternative to Grok bot with a FastAPI API, Next.js UI, governed computer use, Docker/remote runtimes, approvals, connectors, and local-first state. | See repo | ★ 14 |
| open-dots | Open-source, self-hosted AI agent workspace and alternative to OpenAI Dots, Meta Muse, Grok Bot, Instinct, Manus Cue, Claude Cowork, and ChatGPT agent. MIT-lice | See repo | ★ 5.9k |
ElevenLabs
ElevenLabs: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| my-podcast | Open-source AI voiceover & podcast narration studio | See repo | ★ 12 |
Manus
Manus: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| open-agent | Open-source alternative to Claude Agent SDK, ChatGPT Agents, and Manus. | Apache-2.0 | ★ 1.0k |
Granola
Granola: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| natively-cluely-ai-assistant | Natively — Free open-source AI meeting assistant, interview copilot, and note taker. The best alternative to Cluely, Otter, Granola, Final Round AI, Fireflies, | NOASSERTION | ★ 3.0k |
Otter.ai
Otter.ai: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| natively-cluely-ai-assistant | Natively — Free open-source AI meeting assistant, interview copilot, and note taker. The best alternative to Cluely, Otter, Granola, Final Round AI, Fireflies, | NOASSERTION | ★ 3.0k |
OpenArt
OpenArt: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Open-Generative-AI | Self-hostable AI image and video generation studio with 600+ models. | MIT | ★ 31k |
Wispr Flow
Wispr Flow: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| VoiceInk | The best open-source alternative to Superwhisper & Wispr Flow. Voice-to-text app for macOS with no subscription | NOASSERTION | ★ 6.9k |
| freeflow | Free & fast alternative to Wispr Flow | MIT | ★ 2.9k |
Genspark
Genspark: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| lemonai | Lemon AI is the first Full-stack Open-source Self-Evolving General AI Agent, offering a fully local alternative to Agentic platforms like Manus & Genspark AI.🔔 | NOASSERTION | ★ 1.6k |
Fireflies.ai
Fireflies.ai: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| natively-cluely-ai-assistant | Natively — Free open-source AI meeting assistant, interview copilot, and note taker. The best alternative to Cluely, Otter, Granola, Final Round AI, Fireflies, | NOASSERTION | ★ 3.0k |
NotebookLM
NotebookLM: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| notebookllama | A fully open-source, LlamaCloud-backed alternative to NotebookLM | MIT | ★ 2.0k |
| insights-lm-public | Open-source, self-hosted alternative to NotebookLM. Chat with your documents, generate audio summaries, and ground AI in your own sources—built with Supabase an | MIT | ★ 659 |
Krea
Krea: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Open-Generative-AI | Self-hostable AI image and video generation studio with 600+ models. | MIT | ★ 31k |
| Vibe-Workflow | Free, open-source alternative to Weavy AI, Krea Nodes, Freepik Spaces & FloraFauna AI — node-based AI workflow builder for generative image & video pipelines | MIT | ★ 625 |
Remini
Remini: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| ai-wedding-photo | Open-source AI wedding photo generator | See repo | ★ 8 |
| old-photo-restore | Open-source AI old photo restoration tool | See repo | ★ 13 |
Murf AI
Murf AI: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| my-podcast | Open-source AI voiceover & podcast narration studio | See repo | ★ 12 |
Cluely
Cluely: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| natively-cluely-ai-assistant | Natively — Free open-source AI meeting assistant, interview copilot, and note taker. The best alternative to Cluely, Otter, Granola, Final Round AI, Fireflies, | NOASSERTION | ★ 3.0k |
| pluely | The Open Source Alternative to Cluely - A lightning-fast, privacy-first AI assistant that works seamlessly during meetings, interviews, and conversations withou | GPL-3.0 | ★ 2.8k |
Weavy
Weavy: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Vibe-Workflow | Free, open-source alternative to Weavy AI, Krea Nodes, Freepik Spaces & FloraFauna AI — node-based AI workflow builder for generative image & video pipelines | MIT | ★ 625 |
Facetune
Facetune: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| ai-wedding-photo | Open-source AI wedding photo generator | See repo | ★ 8 |
Vapi
Vapi: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| dograh | Open source voice AI platform. Self-hosted alternative to Vapi and Retell. On Prem, BYOK across Speech to Speech or LLM/STT/TTS, with a visual workflow builder, | BSD-2-Clause | ★ 5.9k |
Replika
Replika: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| ai-character-studio | Open-source AI character creator & roleplay chat studio | See repo | ★ 23 |
PromptBase
PromptBase: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| prompt-architect | Open-source AI prompt engineering workspace | See repo | ★ 23 |
Retell AI
Retell AI: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| dograh | Open source voice AI platform. Self-hosted alternative to Vapi and Retell. On Prem, BYOK across Speech to Speech or LLM/STT/TTS, with a visual workflow builder, | BSD-2-Clause | ★ 5.9k |
Superwhisper
Superwhisper: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| VoiceInk | The best open-source alternative to Superwhisper & Wispr Flow. Voice-to-text app for macOS with no subscription | NOASSERTION | ★ 6.9k |
Final Round AI
Final Round AI: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| natively-cluely-ai-assistant | Natively — Free open-source AI meeting assistant, interview copilot, and note taker. The best alternative to Cluely, Otter, Granola, Final Round AI, Fireflies, | NOASSERTION | ★ 3.0k |
Prisma
Prisma: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| magicself-ai | Open-source AI selfie-to-artwork generator | See repo | ★ 7 |
FaceApp
FaceApp: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| ai-kid-to-adult-prediction | Open-source AI age progression & kid-to-adult prediction tool | See repo | ★ 2 |
ModiFace
ModiFace: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| ai-professional-makeup-generator | Open-source AI virtual makeup try-on tool | See repo | ★ 11 |
Lensa AI
Lensa AI: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| ai-royal-portrait | Open-source AI royal portrait & style transformation tool | See repo | ★ 4 |
| magicself-ai | Open-source AI selfie-to-artwork generator | See repo | ★ 7 |
FloraFauna AI
FloraFauna AI: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Vibe-Workflow | Free, open-source alternative to Weavy AI, Krea Nodes, Freepik Spaces & FloraFauna AI — node-based AI workflow builder for generative image & video pipelines | MIT | ★ 625 |
Ink Hunter
Ink Hunter: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| ai-tattoo-try-on | Open-source AI tattoo try-on & virtual placement simulator | See repo | ★ 4 |
Tattoosmart
Tattoosmart: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| ai-tattoo-try-on | Open-source AI tattoo try-on & virtual placement simulator | See repo | ★ 4 |
ChatGPT Agent
ChatGPT Agent: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| open-dots | Open-source, self-hosted AI agent workspace and alternative to OpenAI Dots, Meta Muse, Grok Bot, Instinct, Manus Cue, Claude Cowork, and ChatGPT agent. MIT-lice | See repo | ★ 5.9k |
PromptPerfect
PromptPerfect: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| prompt-architect | Open-source AI prompt engineering workspace | See repo | ★ 23 |
YouCam Hair
YouCam Hair: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| ai-hair-style-simulator | Open-source AI hairstyle simulator & virtual hair makeover | See repo | ★ 12 |
YouCam Makeup
YouCam Makeup: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| ai-professional-makeup-generator | Open-source AI virtual makeup try-on tool | See repo | ★ 11 |
Security
1Password
Password manager.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Bitwarden | Open source password manager for individuals and teams. | AGPL-3.0 / Bitwarden License | ★ 20k |
| Vaultwarden | Self-hosted Bitwarden-compatible server. | AGPL-3.0 | ★ 69k |
| KeePassXC | Cross-platform offline password manager. | GPL-2.0 / GPL-3.0 | ★ 29k |
Shodan
Shodan: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| ivre | Network recon framework. Build your own, self-hosted and fully-controlled alternatives to Shodan / ZoomEye / Censys and GreyNoise, run your Passive DNS service, | GPL-3.0 | ★ 4.2k |
Censys
Censys: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| ivre | Network recon framework. Build your own, self-hosted and fully-controlled alternatives to Shodan / ZoomEye / Censys and GreyNoise, run your Passive DNS service, | GPL-3.0 | ★ 4.2k |
Developer Tools
Firebase
Backend-as-a-service for apps.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Supabase | Postgres database, auth, storage and realtime. | Apache-2.0 | ★ 112k |
| Appwrite | Backend platform for web, mobile and Flutter apps. | BSD-3-Clause | ★ 58k |
| PocketBase | Single-file backend with realtime database and auth. | MIT | ★ 61k |
| supertokens-core | Open source alternative to Auth0 / Firebase Auth / AWS Cognito | NOASSERTION | ★ 15k |
| measure | Measure helps mobile teams monitor and fix crashes, ANRs, bugs, and performance issues. The open source alternative to Firebase Crashlytics. | Apache-2.0 | ★ 1.4k |
Vercel
Frontend hosting and deployment platform.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Coolify | Self-hostable alternative to Vercel, Heroku and Netlify. | Apache-2.0 | ★ 63k |
| Dokku | Self-hosted Heroku-style PaaS. Lacks preview deploys and edge features. | MIT | ★ 32k |
| CapRover | Self-hosted PaaS on Docker and nginx. Covers hosting and deploys only. | Apache-2.0 | ★ 15k |
| dokploy | Open Source Alternative to Vercel, Netlify and Heroku. | NOASSERTION | ★ 38k |
| kubero | A free and self-hosted PaaS alternative to Heroku / Netlify / Coolify / Vercel / Dokku / Portainer running on Kubernetes | GPL-3.0 | ★ 4.4k |
| temps | AI-native open-source alternative to Vercel + Sentry + PostHog + Pingdom + Resend + E2B. 440+ CLI operations with drop-in skills for Claude Code, Codex & OpenCo | Apache-2.0 | ★ 851 |
Auth0
Identity and authentication platform.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Keycloak | Identity and access management for apps and services. | Apache-2.0 | ★ 37k |
| Ory Kratos | API-first identity and user management. | Apache-2.0 | ★ 14k |
| SuperTokens | Open source authentication with your own database. | Apache-2.0 | ★ 15k |
| hanko | Modern authentication, on your terms. Open source alternative to Auth0, Clerk, WorkOS, Stytch. | NOASSERTION | ★ 9.0k |
Postman
API testing and development.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Bruno | Git-friendly offline API client. | MIT | ★ 48k |
| Hoppscotch | Lightweight open source API development ecosystem. | MIT | ★ 81k |
| Pororoca | An API testing tool with support for HTTP/2 and HTTP/3. Alternative to Postman. | NOASSERTION | ★ 669 |
LaunchDarkly
Feature flags.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Unleash | Open source feature management. | AGPL-3.0 | ★ 14k |
Pusher
Pusher: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| centrifugo | Scalable real-time messaging server in a language-agnostic way. Self-hosted alternative to Pubnub, Pusher, Ably, socket.io, Phoenix.PubSub, SignalR. Set up once | Apache-2.0 | ★ 11k |
Elastic Cloud
Elastic Cloud: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| openobserve | Open source observability platform for logs, metrics, traces, RUM (web, android, ios), Session replay, pipelines, SLO and LLM observability. A sophisticated, si | AGPL-3.0 | ★ 22k |
| Sonic | 🦔 Fast, lightweight & schema-less search backend. An alternative to Elasticsearch that runs on a few MBs of RAM. | MPL-2.0 | ★ 21k |
Netlify
Netlify: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| coolify | An open-source, self-hostable PaaS alternative to Vercel, Heroku & Netlify that lets you easily deploy static sites, databases, full-stack applications and 280+ | Apache-2.0 | ★ 63k |
| dokploy | Open Source Alternative to Vercel, Netlify and Heroku. | NOASSERTION | ★ 38k |
| kubero | A free and self-hosted PaaS alternative to Heroku / Netlify / Coolify / Vercel / Dokku / Portainer running on Kubernetes | GPL-3.0 | ★ 4.4k |
Heroku
Heroku: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| coolify | An open-source, self-hostable PaaS alternative to Vercel, Heroku & Netlify that lets you easily deploy static sites, databases, full-stack applications and 280+ | Apache-2.0 | ★ 63k |
| dokploy | Open Source Alternative to Vercel, Netlify and Heroku. | NOASSERTION | ★ 38k |
| kubero | A free and self-hosted PaaS alternative to Heroku / Netlify / Coolify / Vercel / Dokku / Portainer running on Kubernetes | GPL-3.0 | ★ 4.4k |
Terraform
Infrastructure as code.
| Alternative | Description | License | Stars |
|---|---|---|---|
| OpenTofu | Community-driven Terraform fork. | MPL-2.0 | ★ 31k |
Clerk
Clerk: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| hanko | Modern authentication, on your terms. Open source alternative to Auth0, Clerk, WorkOS, Stytch. | NOASSERTION | ★ 9.0k |
PubNub
PubNub: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| centrifugo | Scalable real-time messaging server in a language-agnostic way. Self-hosted alternative to Pubnub, Pusher, Ably, socket.io, Phoenix.PubSub, SignalR. Set up once | Apache-2.0 | ★ 11k |
ngrok
ngrok: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| piko | An open-source alternative to Ngrok, designed to serve production traffic and be simple to host (particularly on Kubernetes) | MIT | ★ 2.2k |
Stytch
Stytch: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| hanko | Modern authentication, on your terms. Open source alternative to Auth0, Clerk, WorkOS, Stytch. | NOASSERTION | ★ 9.0k |
WorkOS
WorkOS: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| hanko | Modern authentication, on your terms. Open source alternative to Auth0, Clerk, WorkOS, Stytch. | NOASSERTION | ★ 9.0k |
Algolia
Hosted search.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Meilisearch | Fast, typo-tolerant search engine. | MIT | ★ 60k |
| Typesense | Open source typo-tolerant search engine. | GPL-3.0 | ★ 27k |
Retool
Internal tool builder.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Appsmith | Low-code platform for internal apps. | Apache-2.0 | ★ 41k |
| ToolJet | Low-code platform for business apps. | AGPL-3.0 | ★ 41k |
| windmill | Open-source developer platform to power your entire infra and turn scripts into webhooks, workflows and UIs. Fastest workflow engine (13x vs Airflow). Open-sour | NOASSERTION | ★ 18k |
Pinecone
Pinecone: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| typesense | Open Source alternative to Algolia + Pinecone and an Easier-to-Use alternative to ElasticSearch ⚡ 🔍 ✨ Fast, typo tolerant, in-memory fuzzy Search Engine for bu | GPL-3.0 | ★ 27k |
Cypress Cloud
Cypress Cloud: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| sorry-cypress | Open-source, free, self-hosted alternative to Cypress Dashboard | MIT | ★ 2.8k |
Apollo GraphOS
Apollo GraphOS: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| cosmo | The open-source solution to building, maintaining, and collaborating on GraphQL Federation at Scale. The alternative to Apollo Studio and GraphOS. | Apache-2.0 | ★ 1.3k |
Insomnia
Insomnia: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| hoppscotch | Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia | MIT | ★ 81k |
| bruno | Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia) | MIT | ★ 48k |
Ably
Ably: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| centrifugo | Scalable real-time messaging server in a language-agnostic way. Self-hosted alternative to Pubnub, Pusher, Ably, socket.io, Phoenix.PubSub, SignalR. Set up once | Apache-2.0 | ★ 11k |
ShipFast
ShipFast: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| ai-saas-starter | Production-ready Next.js AI SaaS boilerplate | See repo | ★ 27 |
AWS Cognito
AWS Cognito: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| supertokens-core | Open source alternative to Auth0 / Firebase Auth / AWS Cognito | NOASSERTION | ★ 15k |
Monitoring
Datadog
Infrastructure and application monitoring.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Grafana | Dashboards and metrics for monitoring. Usually paired with Prometheus. | AGPL-3.0 | ★ 77k |
| SigNoz | OpenTelemetry-native APM, logs and traces. | MIT (core) | ★ 32k |
| openobserve | Open source observability platform for logs, metrics, traces, RUM (web, android, ios), Session replay, pipelines, SLO and LLM observability. A sophisticated, si | AGPL-3.0 | ★ 22k |
Sentry
Sentry: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| temps | AI-native open-source alternative to Vercel + Sentry + PostHog + Pingdom + Resend + E2B. 440+ CLI operations with drop-in skills for Claude Code, Codex & OpenCo | Apache-2.0 | ★ 851 |
| Telemetry Tracker | Self-hostable error tracker for small teams with grouped errors, source maps, and alerts. | MIT | ★ 34 |
Splunk
Splunk: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| openobserve | Open source observability platform for logs, metrics, traces, RUM (web, android, ios), Session replay, pipelines, SLO and LLM observability. A sophisticated, si | AGPL-3.0 | ★ 22k |
Pingdom
Pingdom: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| temps | AI-native open-source alternative to Vercel + Sentry + PostHog + Pingdom + Resend + E2B. 440+ CLI operations with drop-in skills for Claude Code, Codex & OpenCo | Apache-2.0 | ★ 851 |
| SolidPing | Self-hostable uptime monitoring: 40+ check types, multi-region workers, private agents, status pages, incidents and on-call escalation. | AGPL-3.0 | ★ 22 |
Customer Support
Zendesk
Helpdesk and ticketing.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Zammad | Web-based helpdesk and customer support system. | AGPL-3.0 | ★ 6.0k |
| chatwoot | Open-source live-chat, email support, omni-channel desk. An alternative to Intercom, Zendesk, Salesforce Service Cloud etc. 🔥💬 | NOASSERTION | ★ 38k |
| libredesk | Open-source, self-hosted customer support desk in a single binary. A lightweight alternative to Intercom, Zendesk, Chatwoot. | AGPL-3.0 | ★ 3.1k |
Intercom
Customer messaging and support.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Chatwoot | Omnichannel customer support platform. | MIT | ★ 38k |
| DeskcommCRM | Open-source AI sales OS — self-hosted CRM with native AI agents + WhatsApp (WAHA). Open alternative to Kommo, Octadesk & Intercom for any business that sells by | MIT | ★ 4.7k |
| chaskiq | A full featured Live Chat, Support & Marketing platform, alternative to Intercom, Drift, Crisp. | NOASSERTION | ★ 3.6k |
| libredesk | Open-source, self-hosted customer support desk in a single binary. A lightweight alternative to Intercom, Zendesk, Chatwoot. | AGPL-3.0 | ★ 3.1k |
Drift
Drift: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| chaskiq | A full featured Live Chat, Support & Marketing platform, alternative to Intercom, Drift, Crisp. | NOASSERTION | ★ 3.6k |
Crisp
Crisp: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| chaskiq | A full featured Live Chat, Support & Marketing platform, alternative to Intercom, Drift, Crisp. | NOASSERTION | ★ 3.6k |
Forms
Typeform
Forms and surveys.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Formbricks | Open source survey and experience management. | AGPL-3.0 | ★ 13k |
| LimeSurvey | 🔥 LimeSurvey – A powerful, open-source survey platform. A free alternative to SurveyMonkey, Typeform, Qualtrics, and Google Forms, making it simple to create o | NOASSERTION | ★ 3.8k |
SurveyMonkey
SurveyMonkey: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| SurveyKing | One command to deploy a more powerful, self‑hosted alternative to SurveyMonkey. | MIT | ★ 4.0k |
| LimeSurvey | 🔥 LimeSurvey – A powerful, open-source survey platform. A free alternative to SurveyMonkey, Typeform, Qualtrics, and Google Forms, making it simple to create o | NOASSERTION | ★ 3.8k |
Qualtrics
Qualtrics: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| LimeSurvey | 🔥 LimeSurvey – A powerful, open-source survey platform. A free alternative to SurveyMonkey, Typeform, Qualtrics, and Google Forms, making it simple to create o | NOASSERTION | ★ 3.8k |
Finance
Stripe Billing
Subscription billing.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Lago | Open source metering and usage-based billing. | AGPL-3.0 | ★ 11k |
QuickBooks
QuickBooks: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| bigcapital | 💵 Independent financial accounting with intelligent reporting, alternative to Quickbooks, Xero, Wave. | AGPL-3.0 | ★ 3.9k |
Xero
Xero: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| bigcapital | 💵 Independent financial accounting with intelligent reporting, alternative to Quickbooks, Xero, Wave. | AGPL-3.0 | ★ 3.9k |
YNAB
YNAB: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| financial-freedom | 🔥🔥🔥 An open source alternative to Mint, YNAB, and more. Stay on budget and build wealth without sacrificing your privacy. | GPL-3.0 | ★ 3.0k |
Splitwise
Splitwise: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| spliit | Free and Open Source Alternative to Splitwise. Share expenses with your friends and family. | MIT | ★ 3.0k |
| split-pro | Open source alternative to Splitwise | MIT | ★ 1.5k |
Carta
Carta: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| captable | #1 Open-Source Captable, an alternative to Carta, Pully, Angelist and others. | AGPL-3.0 | ★ 824 |
Video
Loom
Screen recording and sharing.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Cap | Open source screen recorder and sharing tool. | AGPL-3.0 | ★ 23k |
| better-shot | Screenshot, screen recording, and video editor for macOS. Native SwiftUI app with capture deck, 75+ customizable shortcuts, URL scheme automation, and self-host | NOASSERTION | ★ 2.4k |
Opus Clip
Opus Clip: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| ai-clipping-comfyui | Free open-source Opus Clip alternative for ComfyUI | MIT | ★ 30 |
| AI-Youtube-Shorts-Generator | Open-source alternative to Opus Clip, Vidyo.ai, Klap & SubMagic. Turn long-form YouTube videos into viral 9:16 shorts using LLM highlight detection, Whisper tra | MIT | ★ 5.5k |
CleanShot X
CleanShot X: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| better-shot | Screenshot, screen recording, and video editor for macOS. Native SwiftUI app with capture deck, 75+ customizable shortcuts, URL scheme automation, and self-host | NOASSERTION | ★ 2.4k |
| Capso | Open-source screenshot and screen recording for macOS. The free, native alternative to CleanShot X. Built with Swift 6.0 and SwiftUI. | NOASSERTION | ★ 1.4k |
SubMagic
SubMagic: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| AI-Youtube-Shorts-Generator | Open-source alternative to Opus Clip, Vidyo.ai, Klap & SubMagic. Turn long-form YouTube videos into viral 9:16 shorts using LLM highlight detection, Whisper tra | MIT | ★ 5.5k |
| OpenSubs | On-device video captioning with Whisper transcription, styling, and SRT, VTT, or ASS export. | AGPL-3.0 | ★ 115 |
Klap
Klap: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| AI-Youtube-Shorts-Generator | Open-source alternative to Opus Clip, Vidyo.ai, Klap & SubMagic. Turn long-form YouTube videos into viral 9:16 shorts using LLM highlight detection, Whisper tra | MIT | ★ 5.5k |
Vidyo.ai
Vidyo.ai: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| AI-Youtube-Shorts-Generator | Open-source alternative to Opus Clip, Vidyo.ai, Klap & SubMagic. Turn long-form YouTube videos into viral 9:16 shorts using LLM highlight detection, Whisper tra | MIT | ★ 5.5k |
Adobe After Effects
Adobe After Effects: paid Adobe Creative Cloud product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| EffectCraft | EffectCraft: An open-source motion graphics and compositing tool written from scratch in Rust | Apache-2.0 | ★ 7.4k |
Adobe Premiere Pro
Professional video editing.
| Alternative | Description | License | Stars |
|---|---|---|---|
| FilmCraft | FilmCraft: An open-source, nonlinear video editor written from scratch in Rust | Apache-2.0 | ★ 15k |
| Kdenlive | Multi-track non-linear video editor. | GPL-3.0 | ★ 5.9k |
| OpenShot | Easy-to-use cross-platform video editor. | GPL-3.0 | ★ 6.7k |
Publishing
Medium / Substack
Blogging and newsletters.
| Alternative | Description | License | Stars |
|---|---|---|---|
| Ghost | Publishing platform with memberships and newsletters. | MIT | ★ 56k |
Disqus
Disqus: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| mouthful | Mouthful is a self-hosted alternative to Disqus | MIT | ★ 776 |
Product
Pendo
Pendo: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| laudspeaker | 📢 Laudspeaker is an Open Source Customer Engagement and Product Onboarding Platform. Open Source alternative to Braze / One Signal / Customer Io / Appcues / Pe | NOASSERTION | ★ 2.6k |
Appcues
Appcues: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| laudspeaker | 📢 Laudspeaker is an Open Source Customer Engagement and Product Onboarding Platform. Open Source alternative to Braze / One Signal / Customer Io / Appcues / Pe | NOASSERTION | ★ 2.6k |
| usertour | Usertour is an open-source user onboarding platform. It allows you to create in-app product tours, checklists, and surveys in minutes—effortlessly and with full | NOASSERTION | ★ 2.3k |
Userflow
Userflow: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| usertour | Usertour is an open-source user onboarding platform. It allows you to create in-app product tours, checklists, and surveys in minutes—effortlessly and with full | NOASSERTION | ★ 2.3k |
Education
Thinkific
Thinkific: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| classroomio | The Open Source Education Platform for Companies. A Simple and Beautiful Alternative to Moodle LMS, EdX, Thinkific and Teachable | AGPL-3.0 | ★ 1.7k |
| courselit | Create/Sell courses and digital downloads and publish blogs on your own branded website. An open source alternative to Teachable, Thinkific, Podia and the likes | AGPL-3.0 | ★ 1.3k |
Teachable
Teachable: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| classroomio | The Open Source Education Platform for Companies. A Simple and Beautiful Alternative to Moodle LMS, EdX, Thinkific and Teachable | AGPL-3.0 | ★ 1.7k |
| courselit | Create/Sell courses and digital downloads and publish blogs on your own branded website. An open source alternative to Teachable, Thinkific, Podia and the likes | AGPL-3.0 | ★ 1.3k |
Podia
Podia: paid SaaS product.
| Alternative | Description | License | Stars |
|---|---|---|---|
| courselit | Create/Sell courses and digital downloads and publish blogs on your own branded website. An open source alternative to Teachable, Thinkific, Podia and the likes | AGPL-3.0 | ★ 1.3k |
Notes
- Licenses and star counts are refreshed from the GitHub API and can change. Check each project before you adopt it.
- "Open source" here means source is publicly available. Some entries use fair-code or source-available licenses and are marked as such.
Data sources
- Curated entries: the original tool-to-alternative pairs are maintained by hand in
data.json. - Discovered entries: more pairs were found with the GitHub Search API by looking for public repositories whose description says "alternative to X". Those entries reuse the repository's own GitHub description, and a human decided which targets are paid SaaS products.
- Ordering: a hand-picked set of household-name apps (see
featured.json) comes first, then the rest by the Tranco ranking of each product's website. Products that share a giant parent site (Google, Microsoft, Adobe, Amazon) aren't ranked by that site's traffic. Categories are ordered by their most popular app. Alternatives within an app are listed as submitted. - Stars, licenses and last-push dates: pulled from the GitHub REST API and refreshed weekly. Where GitHub can't detect a license, the entry says "See repo".
- Community submissions: added through the issue form and pull requests.
- Verification: the original curated pairs were cross-checked against independent sources (comparison articles and directories). Where a project replaces only part of a product, its description says so.
- Disclosure: some listed projects are maintained by the author of this list (Anil-matcha and SamurAIGPT). Each one's own repository description claims it as an alternative to the listed app.
- This list does not copy data from AlternativeTo, OpenAlternative or other directories.
Contributing
Add or edit entries in data.json, then run:
GITHUB_TOKEN=... node scripts/refresh-stats.mjs
node scripts/build-readme.mjs
README.md is generated, so please don't edit it by hand.