htmx

High power tools for HTML

High power tools for HTML. Access AJAX, CSS Transitions, WebSockets, and Server Sent Events directly in HTML using attributes for modern UIs with the simplicity of hypertext.

40K

GitHub Stars

supported

TypeScript

easy

Learning Curve

4.7

DX Score

Visit Website → Documentation GitHub

Pricing

Model

free

Free Tier

BSD-2-Clause licensed, fully open source

Features

✓ AJAX from any element
✓ Any HTTP method
✓ Partial page updates
✓ WebSocket support
✓ Server Sent Events
✓ CSS transitions
✓ No build step
✓ Dependency-free
✓ 16KB minified/gzipped

Pros

+ Server-centric simplicity
+ No JavaScript required
+ Works with any backend
+ 67% less code than React
+ Progressive enhancement

Cons

- Not for complex client state
- Backend does more work
- Limited offline support
- Different mental model

Best For

indie hacker hobbyist startup

Alternatives

Alpine.js

hypermedia server-driven no-build progressive-enhancement ajax