#runtime

myjs

A pure-Python JavaScript interpreter that runs JS code and DOM operations without Node.js or a browser.

LibPolyCall

A C runtime broker that lets Python, Node.js, Java, Go and even COBOL code call each other's functions through one unified, program-first protocol instead of writing custom bridges for each language pair.

UltraCpp

A new systems programming language that keeps C++'s familiar syntax but borrows Rust's memory-safety guarantees, compiling down to LLVM IR.

Tinysandbox

A containerless, ultra-lightweight sandbox for AI agents, bundling a bash-like shell, Rust-native coreutils, and a sandboxed JavaScript runtime in a single crate.

NodeAkt

Zero-dependency, TypeScript-first actor framework for concurrent and distributed Node.js systems.

Orion

A Rust-compiled backend and automation language with clean syntax, optional typing, native OOP, and 58 built-in modules.

Nushell

A modern command-line shell, written in Rust, that treats the output of every command as structured data — tables and records — instead of plain text.

Dropstone

A self-hosted AI coding assistant that remembers past sessions and can act across your terminal, IDE and other tools with a large context window.

Ant

9MB JavaScript runtime with a custom JIT engine, full Node.js compatibility, and the fastest claimed cold start among major runtimes.

deno (GitHub)

GitHub repository: deno by denoland

node (GitHub)

GitHub repository: node by nodejs

Node.js

Server-side JavaScript runtime