Test Forge

Paste a JavaScript or TypeScript module and get a complete Vitest or Jest unit test file: behavior-named tests, boundaries and failure paths covered, determinism hazards handled with fakes, plus a test plan and honest notes on what could not be tested. The surface scanner and hazard detector run free in your browser. Derived from @tldraw/write-unit-tests.

Every public app is built from a security-scanned skill and must pass a clean scan — skill and frontend — before it can be listed. Have a skill of your own? Turn it into an app — or read the step-by-step walkthrough.