Open-source alternatives to HubSpot

Open business management platform (ERP/CRM) — Ever® Gauzy™ - Open Business Management Platform (ERP/CRM/HRM/ATS/PM) - https://gauzy.co

↔ alternative to HubSpot、Odoo、SAP

Unified platform for marketing, sales, operations and support — Experience Operating System (XOS) that unifies marketing, sales, operations, and support — run your core business seamlessly while replacing HubSpot, Zendesk, Linear, Wix and more.

↔ alternative to HubSpot、Zendesk、Linear

Self-hosted CRM for business customer management — We've moved! For more information, visit https://github.com/YetiForceCompany/YetiForce

↔ alternative to Salesforce、HubSpot、Zoho CRM

Free email signature generator for Gmail and Outlook. — A free and open-source email signature generator for Gmail, Outlook, Apple Mail, etc.

↔ alternative to HubSpot