Empowering everyone to build reliable and efficient software.

An extremely fast Python linter and code formatter, written in Rust.

🤖 Just a command runner

Build system optimized for JavaScript and TypeScript, written in Rust

Anki is a smart spaced repetition flashcard program

A GPU-accelerated cross-platform terminal emulator and multiplexer written by @wez and implemented in Rust

A toolchain for web projects, aimed to provide functionalities to maintain them. Biome offers formatter and linter, usable via CLI and LSP.

Neon: Serverless Postgres. We separated storage and compute to offer autoscaling, code-like database branching, and scale to zero.

⭐️ A friendly language for building type-safe, scalable systems!

Build fast web applications with Rust.

Diem’s mission is to build a trusted and innovative financial network that empowers people and businesses around the world.

A Rust compiler front-end for IDEs

Clash Nyanpasu～(∠・ω< )⌒☆​

Fast Rust-based bundler for the web with a modernized webpack API 🦀

Visualize, query, and stream to train on multimodal robotics data.

Open source Granola AI Alternative

Sui, a next-generation smart contract platform with high throughput, low latency, and an asset-oriented programming model powered by the Move programming language

Aptos is a layer 1 blockchain built to support the widespread use of blockchain through better technology and user experience.

Static analysis for GitHub Actions

🎃 A fast, out-of-the-box terminal built for AI coding.

A Language Server for Postgres

ML-powered manga translator, written in Rust.

a multi-language bindings generator for rust

A next-generation test runner for Rust.

Cross-platform app development in Rust

Rust reflection, serialization, deserialization, pretty printing, etc. — the last proc macro you should need

Matrix Client-Server SDK for Rust

Boot and upgrade via container images

✨ Agentic chat experience in your terminal. Build applications using natural language.

Platform that enables Windows driver development in Rust

Gossip-based service discovery (and more) for large distributed systems.

Source code of Ferrocene, safety-critical Rust toolchain

Golem Cloud is the agent-native platform for building AI agents and distributed applications that never lose state, never duplicate work, and never require you to build infrastructure.

🚀 The open-source, multi-tenant platform for self-building knowledge graphs and simulation

Enarx: Confidential Computing with WebAssembly

Publish Rust crates from CI with a Release PR.

🦀 Find the minimum supported Rust version (MSRV) for your project

The all-in-one Node.js toolkit

expose REST APIs from a Rust program

A simple, fast, and secure operating system for the cloud.

A luxurious package manager for Lua

A configurable, high-performance routing runtime for Apollo Federation 🚀

Capability-oriented version of the Rust standard library

Rust D-Bus crate.

Rust on the Flipper Zero

A language server implementation for WGSL and WESL

Firefox Application Services

FCast Issue Tracker and Source Mirror

Omicron: Oxide control plane

Modern cross-platform telemetry

The CLI for Apollo GraphOS

Blazing fast toolkit for developing Starknet contracts.

Software for the orb

Maps where keys are borrowed from values.

Ark, an R kernel

The home of moss (system state and package manager) and boulder (moss-format build tool)

pctx is the execution layer for agentic tool calls. It auto-converts agent tools and MCP servers into code that runs in secure sandboxes for token-efficient workflows.

A storage service.

VMM userspace for illumos bhyve

The Cairo package manager

A query-system-based static site generator

A language server for the Django web framework

Repository containing Rust crates common between other Facebook open source projects (like Mononoke or Eden).

An RPG Maker XP-VX Ace rewrite, written in Rust with love 💕

The command-line interface for the ICP SDK.

Linter for dangerous Postgres migration patterns in Diesel and SQLx. Prevents downtime caused by unsafe schema changes.

An OCI building tool for content-based layers

High-performance web crawling engine with bindings for 11 languages

Bringing the real world to Web3 with a scalable, decentralized and programmable DLT infrastructure.

Analyze, Fix and Format features in your Rust workspace.

A routing stack written in Rust.

Terminal hypervisor for AI agent swarms: real-time pane capture, state-machine pattern detection, and a JSON API for coordinating fleets of coding agents across WezTerm

WIT dependency manager

Classic rsync re-implementation in pure Rust

The Oxide Rust SDK and CLI

A friendly DNSSEC signing solution: sensible defaults, controllability, observability and flexibility.

Postgres toolkit for Rust, powered by facet reflection

Robotmk - the Robot Framework integration for Checkmk

High performance and minimalist SMTP server

Data-driven tests on stable Rust

Rust Port of enhanced-resolve

Profiler for Cairo programming language & Starknet

WebAssembly binding for Godot

A package manager for SysML v2 and KerML

Tool for generating non-trivial X.509 certificate chains

Basel Haskell Compiler - A next-generation Haskell compiler and runtime for 2026

Generate C headers for your Rust crates

Code coverage tool for cairo

Generate standalone, publish-ready packages for 11 target languages from a single native library.

A modified Gleam compiler to translate Gleam to WebAssembly