LiteJS UI –

LiteJS UI is an old-school framework for high-quality web UIs, used on heavy-traffic websites since 2006.

• Dependency-free, weighs around 25kB (+8kB polyfills for old browsers).
• Written in ES5, compatible with all browsers (including IE5.5). Works seamlessly in ESM projects too.
• No transpiling/compiling/bundling headache, just write working code.

Includes templates, view routing, data binding, i18n, keyboard shortcuts, and touch gestures.

For usage instructions, see Quick-Start guide and wiki.

Examples

• Simplest example — source
• Built-in routing — source
• Full SVG SPA — source

Contributing

Follow Coding Style Guide, run tests npm install; npm test.

Copyright (c) 2006-2026 Lauri Rooden <lauri@rooden.ee>
MIT License | GitHub repo | npm package | Buy Me A Tea