SanityCheck Reviews — Discover what people think of this product.

SanityCheck is the QA engineer most solo engineers or small teams don't have. Instead of writing and maintaining end-to-end test code, you describe what a user should be able to do "sign in, add a contact named Ada, and confirm she appears in the list" and an AI agent opens a real browser in the cloud and does it, the way a human user would.

You can watch every run live (or just let it run in the background). When it finishes, you get a forensic replay: video of the session synced to a step-by-step timeline with every click, console message, network request, and error. A failure isn't a stack trace; it's "clicked Add to cart, cart badge stayed at 0," with the exact frame where it happened.

There's nothing to install. No SDK, no test framework, no CI configuration. Connect GitHub, GitLab, or Vercel and your tests run automatically on every successful deploy.

Test credentials are encrypted and injected directly into the browser, so the model never sees them, and every run has a hard allow-list of domains so the agent can't leave your app. You can run up to multiple agent/browsers in parallel on a single test to catch flaky behavior.

SanityCheck is built for solo founders shipping AI generated apps and for product teams of two to ten engineers without a QA engineer.

Pricing is simple and public: a free tier with 15 runs a month and no credit card, then $29, $99, or $299 a month for 60, 250, or 800 runs. A run is one agent/browser session through one test, and most finish in about a minute.

Try today at sanitycheck.dev and let us know what you think!