silexlabs/Silex

TypeScriptsilex.me

Silex is an online tool for visually creating static sites with dynamic data. With the free/libre spirit of internet, together.

javascriptwebsite-buildernodejswebdesigndesignsaassilexno-codenocodegrapesjsvisualvisual-programming

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Artefactsnpmnpm install silex

README

Silex — the visual builder for static sites

The web belongs to everyone. Silex is a free/libre visual website builder — no lock-in, no subscription, no tracking. Design visually, export clean HTML/CSS, host anywhere.

Try Silex online | Documentation | Desktop app — coming soon | Manifesto

Silex UI

Why Silex?

Most no-code tools lock you in: proprietary formats, forced hosting, subscriptions. Silex is different.

Your data is yours — standard HTML/CSS output, export everything, host anywhere, leave anytime
Real web skills — everything you learn in Silex (HTML, CSS, JAMstack) is transferable knowledge
Community-owned — maintained by Silex Labs, a non-profit recognized as being of general interest. No investors, no exit strategy, transparent finances
Free forever — always free software (AGPL), all features included, no premium tier

"The only open source alternative to Webflow." — "The most powerful and graphically precise website builder that I have experienced."

Who is Silex for?

Web agencies — visual workflow, static output, scale client work without scaling your team
WordPress developers — visual frontend, content from WP via GraphQL, ditch the theme layer
Freelance webdesigners — create client sites without code, export standard HTML, host anywhere
No-code developers — go beyond Wix/Squarespace with full CSS control and no vendor lock-in

Features

GrapesJS-based visual editor — drag-and-drop page building with HTML, CSS, and JS editors
Static HTML output — fast, secure, easy to host anywhere
CMS integration — bind components to WordPress, Strapi, Squidex, or any GraphQL API
11ty compatible — generate static sites from Silex templates, deploy with CI/CD
Desktop app (coming soon) — work offline, no account needed, AI-ready with built-in MCP server. Built with Tauri for Windows, macOS, Linux. Follow progress.
Plugin system — extend with server and client plugins in JS/TS
SEO tools — meta tags, Open Graph, per-page settings
Self-hosting — Docker, Node.js, or one-click deploy on CapRover

Quick start

Use it online — v3.silex.me (free, requires a GitLab account for storage)

Desktop app (alpha) — download for Windows, macOS or Linux. Work offline, no account needed.

Contribute

git clone --recurse-submodules https://github.com/silexlabs/Silex.git
cd Silex
pnpm install && pnpm build && pnpm start

Then open http://localhost:6805. For Docker and production setups, see the self-hosting guide.

Useful links to get you contributing fast:

Good first issues — start here
Contributing guide — coding standards, PR process, discuss-first rule
Community forums — ask questions, share ideas
Chat — quick help
Bug reports
AI-assisted coding — setup guide for Claude Code, Cursor, opencode, etc.

AI / Vibe coding

Design websites with AI — open, local, yours. Learn more

The upcoming Silex Desktop app will let you create and transform sites through prompts: describe what you want, see it built live, refine the design in real time, publish clean HTML/CSS anywhere.

Silex uses MCP (Model Context Protocol), an open standard — so you choose your AI. Run a local model with Ollama for full privacy, or use any MCP-compatible tool: OpenCode, Goose, Claude Code, etc. The MCP server is optimized for small local models (7B+).

See the vibe coding roadmap for what's coming (prompt library, examples cookbook, best practices guide — contributions welcome).