Now in public beta

Build, Test, Debug
Web Apps with AI

Describe the app you want in plain English. Forge writes the code, spins up a live sandbox, and helps you squash bugs — all before your coffee cools.

Build passing

Sandbox ready in 1.2s

Turn a sentence into a working app. Forge scaffolds the markup, styles, and logic, then iterates with you in real time.

Every sandbox run is exercised against generated checks, so regressions surface the moment they appear — not in production.

Paste a stack trace and Forge pinpoints the cause, explains it in plain words, and proposes a one-click fix you can accept or reject.

Prompt

AI fix applied — timer now updates every second.

Suggestions

Generated Code

Preview

forge-sandbox.dev/preview

Run a prompt to see your app here.

Choose the right plan

Start free, upgrade when your side project becomes a team effort. Every plan includes the AI debugger.

For weekend hackers and curious first-timers.

$0/ mo

5 sandbox runs / day

For freelancers shipping real client work.

$20/ mo

100 sandbox runs / day

Shared workspaces, review flows, and admin controls.

$49/ user / mo

Unlimited runs