dewasm converts WebAssembly binaries into pure source code for languages like Ruby, Bash, and Go. No WebAssembly runtime is required.

Crystal’s GC, written in Crystal.

Free on-device dictation for macOS. Hold a hotkey, talk, and your words appear at your cursor - in any app. No cloud, no accounts. Native Crystal app, Parakeet v3 on the Apple Neural Engine.

A virtual filesystem for Crystal: unify directories and archives into a single tree with compression, encryption, and chunked storage.

Nordstjernen web browser.

Crystal shard for cooperative cancellation, deadlines, and request-scoped values.

libclang bindings for crystal (including automatic C bindings generator)

Thread-safe implementation of the SWIM (Scalable Weakly-consistent Infection-style Process Group Membership) protocol for Crystal

MyCompiler - A small IR for building programming languages.

Adamas Lang compiler + LSP server with ground-built Crystal Lang compatible parser/type inferrer/compiler, that is LSP friendly and allows to reload individual files without whole tree reparsing.

Dataflow programming language where you write a program as a message-passing graph and everything runs in parallel by default. It has strong static types, compiles to machine code, interoperates wi…

Pure Go production-grade regex engine with SIMD optimizations. Up to 3-3000x+ faster than stdlib.

LangArena: A Balanced Programming Language Benchmark Suite

Noir is a domain specific language for zero knowledge proofs

Web-Scale Blockchain for fast, secure, scalable, decentralized apps and marketplaces.

Reference client for NEAR Protocol

This is set of 26 benchmarks for Crystal language, in one file.

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

Synchronization primitives to build concurrent and parallel-safe data structures in Crystal

Chromium running inside your terminal

A powerful JSON::Serializable like argument parser for Crystal

a set of implementations of DBM

High-performance HTML5 parser for Ruby based on Lexbor, with support for both CSS selectors and XPath.

Deep Learning for humans

Fast HTML5 parser with CSS selectors for Crystal language

Fast Persistent Key Value Storage

A high performance ruby, written in RPython

Benchmark for interpreted languages implementations.

A tiny boost library in C++11.