Harmless

:warning: This project is currently under construction and missing crucial functionality

A minimalistic reactive web frontend framework written in TypeScript.

Features

Fine-grained reactive DOM updates via promises, observables and signals using a framework-independent signal implementation.
Based on standard JSX using the automatic runtime (aka react-jsx mode), so no special transpiler plugin needed.
Supports dependency injection via a framework-independent cdi implementation.
Provides built-in components for flow control, like If, Choose and Route.
It's just a library without any build system requirements. Use whatever you like.
Easily testable with any JSX-capable testing framework (like Vitest).

Some features are intentionally missing to keep Harmless small and focused:

No server rendering. Harmless is a client-only library.
No web component support. Should be easy enough to use Harmless inside a web component, though.
No CLI tools. Harmless is just a library and doesn't dictate how to structure your project or how to work with it.
No CommonJS support. It's time to leave the stone age behind and use ESM everywhere.

Check out the documentation.