SmolVM lets you run coding agents like Claude and Codex inside an isolated sandbox. The agent gets a full development environment — git credentials, dev tools, terminal access — but nothing it does can affect your host machine.
No more pressing “accept changes” every few seconds. Let the agent work freely in its own computer.
Start a coding agent
Both commands launch a sandbox with the respective coding agent pre-installed and configured.
What you get
Each coding agent sandbox comes with:
- Isolated environment — the agent runs in its own VM, separate from your host
- Git credentials — pre-configured so the agent can clone, commit, and push
- Dev tools — common development tooling ready to use
- Terminal access — full shell access for multi-step workflows
Combine with host mounts to give the coding agent read-only access to your existing project while keeping your files safe. Last modified on April 28, 2026