Self-hosted TypeScript agent runtime with durable approvals and verifiable run records. Own it, approve it, audit it.

Calculate the real cost to run your JS app or lib to keep good performance. Show error in pull request if the cost exceeds the limit.

JSON Schema Type Builder with Static Type Resolution for TypeScript

The smallest, simplest and fastest JavaScript pixel-level image comparison library

Animated components for design engineers. 150+ free shadcn/ui components, built with Tailwind CSS and Motion. MIT licensed.

A JavaScript library for arbitrary-precision decimal and non-decimal arithmetic

An open-source UI component library for building high-quality, accessible design systems and web apps for Vue. Previously Radix Vue

Keep iframes sized to their content

Class Variance Authority

UI kit to make beautiful, animated interfaces, faster. Customizable. Open Source.

The user infrastructure platform. You choose the frontend, backend, and database. Hexclave handles everything else.

DayPicker is a customizable date picker component for React. Add date pickers, calendars, and date inputs to your web applications.

A vanilla JS customisable select box/text input plugin

Create, calculate, and format money in JavaScript and TypeScript

Declarative API exposing platform native touch and gesture system to React Native.

A fast, interactive web-based viewer for performance profiles.

Reactive primitives for Ethereum apps

Powerful and type-safe form state management for the web

Diagramming library that uses SVG and HTML for rendering

A JSON-like data structure (a CRDT) that can be modified concurrently by different users, and merged again automatically.

A multi window layout manager for webapps

Connect, collaborate, and grow with a community of TypeScript developers. Elevate your skills through interactive coding challenges, discussions, and knowledge sharing

Generate, valid, cache and mock in your frontend applications all with your OpenAPI specification

Unified toolchain and entry point for web development. It manages your runtime, package manager, and frontend toolchain in one place.

Realtime database backend based on Operational Transformation (OT)

An open-source set of prebuilt UI components based on the utility-first Tailwind CSS framework

TypeScript-to-Native Compiler

pierre’s open source code

Monorepo for tools developed by the Rush Stack community

Beautiful typographic defaults for HTML you don't control.