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g. Grok Bot, Codex). Run any coding agent with your own subscription.

scriptc compiles TypeScript and JavaScript to typed IR, readable C, textual LLVM IR, native assembly and objects, native executables, and WebAssembly modules. It uses the TypeScript compiler for parsing and type checking. Source outputs require only Node.

js is an open-source, cross-platform JavaScript runtime environment.

Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one

Cayu is an open-source Python framework for building and running domain-specific long-horizon agents, with a durable runtime built in.

Deno (/ˈdiːnoʊ/, pronounced dee-no) is a JavaScript, TypeScript, and WebAssembly runtime with secure defaults and a great developer experience. It's built on V8, Rust, and Tokio.

Self-hosted Cloudflare Workers-compatible platform with Workers、KV、D1、R2、DO、Queues、Workflows、Cron、Cache、Images、Vectorize、AI Search、Artifacts、Static Assets、Service Bindings、Dynamic Workers、LogTail、Gateway in one Rust binary.

Moby is an open-source project created by Docker to enable and accelerate software containerization.

A runtime for writing reliable asynchronous applications with Rust. Provides I/O, networking, scheduling, timers, ...

Colima is available on Homebrew, MacPorts, Nix and Mise. Check here for other installation options.

gVisor provides a strong layer of isolation between running applications and the host operating system. It is an application kernel that implements a Linux-like interface. Unlike Linux, it is written in a memory-safe language (Go) and runs in userspace.

ZLUDA is a drop-in replacement for CUDA on non-NVIDIA GPUs. ZLUDA allows running unmodified CUDA applications using non-NVIDIA GPUs with near-native performance

Wasmer is a blazing fast and secure WebAssembly runtime that enables incredibly lightweight containers to run anywhere: from Desktop to the Cloud, Edge and your browser.

V8 is written in C++ and is used in Chromium, the open source browser from Google.

Open-source agentic workspace enterprises can make their own. Connect the systems you already run — 100+ integrations, MCP, chat tools, apps, browser, local files — with shared memory. Any agent (Claude Code, Codex), any model, or BYOK.

The main documentation is in doc/quickjs.pdf or doc/quickjs.html.

x for microcontrollers, embedded systems and other constrained platforms. org.

NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps.

NET news, announcements, release notes, and more!

The C# part of the Unity engine and editor source code. May be used for reference purposes only.

MicroQuickJS (aka. MQuickJS) is a JavaScript engine targeted at embedded systems. It compiles and runs JavaScript programs using as little as 10 kB of RAM.

🍿 A cross-browser library of CSS animations. As easy to use as an easy thing.

A lightweight WebAssembly runtime that is fast, secure, and standards-compliant

Dart's flexible compiler technology lets you run Dart code in different ways, depending on your target platform and goals:

Numba is an open source, NumPy-aware optimizing compiler for Python sponsored by Anaconda, Inc. It uses the LLVM compiler project to generate machine code from Python syntax.

WasmEdge is a lightweight, high-performance, and extensible WebAssembly runtime for cloud native, edge, and decentralized applications. It powers serverless apps, embedded functions, microservices, smart contracts, and IoT devices.

Porffor is a 100% AOT compiled JS engine/runtime. There is nothing interpreted or compiled just-in-time. Porffor compiles JS to C (with an IR inbetween).

Then run tokio-console to watch tasks, poll times and waker activity. The console module docs describe what is reported and what is not.

js modules directly from DOM/WebWorker and enable a new way of writing applications with all Web technologies.

It's a presentation framework based on the power of CSS3 transforms and transitions in modern browsers and inspired by the idea behind prezi.com.