TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

🐠 Babel is a compiler for writing next generation JavaScript.

The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.

Simple, fast, safe, compiled language for developing maintainable software. Compiles itself in <1s with zero library dependencies. Supports automatic C => V translation. https://vlang.io

A markdown parser and compiler. Built for speed.

:snowman: Possibly the smallest compiler ever

Emscripten: An LLVM-to-WebAssembly Compiler

Slim(toolkit): Don't change anything in your container image and minify it by up to 30x (and for compiled languages even more) making it secure too! (free and open source)

GraalVM compiles applications into native executables that start instantly, scale fast, and use fewer compute resources 🚀

🔒 A compiled checklist of 300+ tips for protecting digital security and privacy in 2026

The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.

Development repository for the Triton language and compiler

Run compilers interactively from your web browser and interact with the assembly

Nim is a statically typed compiled systems programming language. It combines successful concepts from mature languages like Python, Ada and Modula. Its design focuses on efficiency, expressiveness, and elegance (in that order of priority).

Optimizing compiler for React

Go compiler for small places. Microcontrollers, WebAssembly (WASM/WASI), and command-line tools. Based on LLVM.

🧰 The Rust SQL Toolkit. An async, pure Rust SQL crate featuring compile-time checked queries without a DSL. Supports PostgreSQL, MySQL, and SQLite.

A high-performance, zero-overhead, extensible Python compiler with built-in NumPy support

A Rust compiler front-end for IDEs

Nuitka is a Python compiler written in Python. It's fully compatible with Python 2.6, 2.7, 3.4-3.13. You feed it your Python app, it does a lot of clever things, and spits out an executable or extension module.

Scala 2 compiler and standard library. Scala 2 bugs at https://github.com/scala/bug; Scala 3 at https://github.com/scala/scala3

Compile-time Dependency Injection for Go

Style React fast with 100% parity on React Native, an optional UI kit, and optimizing compiler.

Write components once, run everywhere. Compiles to React, Vue, Qwik, Solid, Angular, Svelte, and more.

Open Machine Learning Compiler Framework

A Compiler Writing Journey

A compiler from Go to JavaScript for running Go code in a browser

CoreCLR is the runtime for .NET Core. It includes the garbage collector, JIT compiler, primitive data types and low-level classes.

Boost LaTeX typesetting efficiency with preview, compile, autocomplete, colorize, and more.

A small C compiler