# Run Docker containers inside Vercel Sandbox

By Steven Van · 2026-05-29

Agents can build containers, run Redis or Postgres as test dependencies, and sandboxes gain FUSE and VPN client support too.

[Vercel Sandbox](<https://creatorstoolbox.com/tools/vercel>) can now install and run Docker inside a sandbox, so an agent can build containers, install system packages, and modify files without touching the host system.

- Docker is useful for running containerized services like Redis or Postgres as test dependencies, validating container images before deploying, or previewing applications served from a container.

- Combined with persistent sandboxes, the Docker installation and pulled images carry over between sessions.

- Sandboxes also gained support for FUSE filesystem drivers and VPN clients.

Vercel later updated the [announcement](<https://vercel.com/docs/sandbox>) to note that, starting with SDK v3, new sandboxes default to the Ubuntu-based vercel/sandbox/universal:latest image, where Docker is installed with apt-get rather than the dnf command shown in the original example for the older Amazon Linux runtimes.

[![](<https://vercel.com/api/docs-og?title=Vercel%20Sandbox&format=docs&sig=c5ff2a8e098610f1652033e30b9ae825fd92cd6039116b5cffdf92b9c7983d42&category=Run%20agents%20and%20backends>)](<https://vercel.com/docs/sandbox>)

![Vercel](<https://www.google.com/s2/favicons?domain=vercel.com&sz=128>)

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Sources

[Original source](<https://vercel.com/docs/sandbox>)

[Read Run Docker containers inside Vercel Sandbox on Creators Toolbox](<https://creatorstoolbox.com/blog/vercel-run-docker-containers-inside-vercel-sandbox>)

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Canonical source: https://creatorstoolbox.com/blog/vercel-run-docker-containers-inside-vercel-sandbox