🐠 Babel is a compiler for writing next generation JavaScript.
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Immutable persistent data collections for Javascript which increase efficiency and simplicity.
Transforming styles with JS plugins
Run compilers interactively from your web browser and interact with the assembly
- rust
- c-plus-plus
- go
- dlang
Build production-ready applications in TypeScript
- effect
- javascript
- cli
- opentelemetry
The next-generation file converter. Open source, fully local* and free forever.
🎨 The exhaustive Pattern Matching library for TypeScript, with smart type inference.
- pattern-matching
- typescript
- ts
- pattern
Write components once, run everywhere. Compiles to React, Vue, Qwik, Solid, Angular, Svelte, and more.
Relocate resource intensive third-party scripts off of the main thread and into a web worker. 🎉
- webworker
- 3rd-party
- 3rdparty
- web-worker
React Native's Animated library reimplemented
- animation
- gesture
- react-native
- javascript
A utility library for JavaScript and TypeScript.
- typescript
- utility
- functional
- programming
Promise queue with concurrency control
- queue
- queue-data-stucture
- async-functions
- async-queue
:atom: Run code interactively, inspect data, and plot. All the power of Jupyter kernels, inside your favorite text editor.
- data-science
- jupyter
- ipython
- repl
pyright fork with various type checking improvements, improved vscode support and pylance features built into the language server
- based
- pylance
- pyright
- python
🧵 Make web workers & worker threads as simple as a function call.
- javascript
- nodejs
- thread-pool
- web-worker
jsii allows code in any language to naturally interact with JavaScript classes. It is the technology that enables the AWS Cloud Development Kit to deliver polyglot libraries from a single codebase!
Parser Building Toolkit for JavaScript
- javascript
- typescript
- parser-library
- parsing
🛡️ BLA (Blind LLM Agents) — Adversarial defense shield that protects binaries, Electron apps, JS bundles, Python, and WebAssembly against AI reverse-engineering agents like REA. Poison -> Exhaust -> Hallucinate.
- adversarial-ai
- claude-code
- cursor
- electron-security
A Code Playground That Just Works!
- javascript
- typescript
- playground
- monaco-editor
A TypeScript-first, runtime-agnostic command-line toolkit for Deno, Node.js and Bun: featuring a command framework, argument parser, interactive prompts, tables, ANSI utilities, and more.
- deno
- cli
- typescript
- command-line
GraphQL execution using a JIT compiler
In Browser PostgreSQL Playground, no server, just client and pglite (postgresql wasm)
Compile-time i18n toolkit that requires zero code changes and produces the smallest possible bundles. Supports React, Svelte, SolidJS, Astro, and more
TypeScript written in TypeScript