Bun

NodeJs

Astro

Claude Code

Python

Next.js

Go

Docker

Claude

The self-hosted way to run code you did not write.

Opensbx is an local-first sandbox runtime for untrusted or AI-generated code.

Sandbox Runtime Built for AI Teams

Execute untrusted code safely with isolated sandboxes, API-first workflows, and production-ready controls.

Polyglot Runtime

Run Node.js, Python, Go, and framework workloads inside isolated Docker sandboxes.

Live Command Logs

Execute commands through the API and stream stdout and stderr in real time.

API-First Design

Manage sandboxes, files, networking, and command execution with clear REST endpoints.

Security by Default

Apply CPU, memory, and timeout limits with optional API key auth and gVisor hardening.