sandboxd tastyeffectco/sandboxd

Self-hosted engine and web console where a coding agent builds apps from a prompt in isolated Docker sandboxes on your own server, each with a preview URL.

Creator kit + Compare GitHub ↗ Install guide (official) ↗

sandboxd at a glance

Checked 15 Oct 2026

sandboxd (v0.3.22, October 2026, beta) is one Go program driving Docker on a Linux server. Each app gets its own container; an agent (OpenCode by default, or Claude Code) builds it from your prompt and serves a live preview URL. It has a web console with file editor, git diff and push, undo, plus 80+ one-click open-source app recipes and a full API. OpenCode runs on free hosted models with no key; local models are not documented. Uses container (not VM) isolation and API auth is off by default. Public URLs need your own domain/TLS or paid sandboxd Cloud. MIT.

Cite this pageRepoQuarry. “sandboxd.” Checked 15 Oct 2026. https://repoquarry.dev/projects/sandboxd

How much of Lovable does it replace?

2 of 6 jobs. Prompt-to-app with live previews on your own server; no visual editor or built-in database/auth for your apps.

Build a full-stack web app from a chat prompt Partial replacement

See the running app update as it is built Partial replacement

Change the UI by clicking on it (Visual Edits) Not covered

Add a database Not covered

Publish the app to a live URL (Publish) Not covered

Turn a screenshot Not covered

For change the UI by clicking on it (Visual Edits), add a database, publish the app to a live URL (Publish), turn a screenshot, see other Lovable alternatives. You may also need to build an interface, an API server and hosting yourself.

How much of Bolt.new does it replace?

2 of 6 jobs. Apps run in Docker containers on your server rather than in the browser; Linux host needed.

Build a full-stack web app from a chat prompt Partial replacement

Run and preview the app in the browser (WebContainers) Partial replacement

Add a database and login (Bolt Database / Supabase) Not covered

Publish the app to a live URL (Bolt hosting / Netlify) Not covered

Build a mobile app from a prompt (Expo) Not covered

Turn a screenshot or design into an app (image or Figma import) Not covered

For add a database and login (Bolt Database / Supabase), publish the app to a live URL (Bolt hosting / Netlify), build a mobile app from a prompt (Expo), turn a screenshot or design into an app (image or Figma import), see other Bolt.new alternatives. You may also need to build an interface, an API server and hosting yourself.

Facts, with sources

Every answer links to where we found it. We read the documentation; we did not install it.

Report a correction

QuestionAnswerSourceChecked

Runs on my machine? Yes, self-hosted on your own Linux server or machine with Docker Prompt it and a coding agent builds real apps in isolated sandboxes on your server github.com · sandboxd#readme ↗ 1d ago

Code licence MIT github.com · LICENSE ↗ 1d ago

Model weights licence No separate model weights github.com · sandboxd#readme ↗ 1d ago

Commercial use Yes, MIT Use it, ship it, sell what you build on it. github.com · sandboxd#license ↗ 1d ago

Paid services needed? None required; the default OpenCode agent uses OpenCode Zen's free hosted models. Paid model keys and sandboxd Cloud are optional OpenCode works out of the box with no credential . sandboxd.io · agents ↗ 1d ago

Hardware A Linux server with Docker; 2 vCPU and 4 GB RAM to start; amd64 or arm64 2 vCPU / 4 GB is plenty to start github.com · sandboxd#-deploy-to-a-vps-in-one-click ↗ 1d ago

Operating systems Linux; macOS via Docker Desktop is best-effort; Windows not stated Needs Docker + the Compose plugin and git on Linux (macOS via Docker Desktop is best-effort). github.com · sandboxd#quick-start ↗ 1d ago

Setup effort Medium; one-line install script that builds and starts the Docker stack Writes .env , builds the images, starts the stack, prints the console URL and an API key sandboxd.io · quickstart ↗ 1d ago