Show HN: Tinysandbox – An ultra-minimal sandbox with QuickJS WASM isolates

Category: library

Tags: sandbox, wasm, ai-agents

Score: 7.3/10 (Innovation: 7, Technical: 8, Documentation: 7, Utility: 7)

Tinysandbox provides an ultra-minimal, in-process sandbox for AI agents, offering a bash-compatible shell, GNU-faithful coreutils, and a JavaScript runtime isolated via QuickJS WASM, all without containers or VMs. Its innovative combination of an in-memory VFS with Wasmtime for untrusted code execution enables instant startup and extremely low resource usage, filling a known gap for secure, lightweight agent environments.

Target audience: backend devs, ai-engineers

Repository: https://github.com/danthegoodman1/tinysandbox · Rust · Apache-2.0 · 2 stars

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