The Ruby Programming Language

A Python Interpreter written in Rust

A fast and secure runtime for WebAssembly

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

Mono open source ECMA CLI, C# and .NET implementation.

Enso Analytics is a self-service data prep and analysis platform designed for data teams.

A blazingly fast JSON serializing & deserializing library

WebAssembly Micro Runtime (WAMR)

Low-latency machine code generation

Cinder is Meta's internal performance-oriented production version of CPython.

Eclipse OpenJ9: A Java Virtual Machine for OpenJDK that's optimized for small footprint, fast start-up, and high throughput. Builds on Eclipse OMR (https://github.com/eclipse/omr) and combines with the Extensions for OpenJDK for OpenJ9 repo.

A blazingly fast multi-language serialization framework powered by JIT and zero-copy.

Multi-dimensional arrays (tensors) and numerical definitions for Elixir

Cranelift code generator

It's a New Kind of Wrapper for Exposing LLVM (Safely)

.NET Platform Architecture book (English, Chinese, Russian)

A JIT assembler for x86/x64 architectures supporting MMX, SSE (1-4), AVX (1-2, 512), FPU, APX, and AVX10.2

Unofficial mirror of mob development branch

JPHP - an implementation of PHP on Java VM

The native Clojure dialect hosted on LLVM