THE VERIFICATION LAYER FOR YOUR SOFTWARE FACTORY
Black-box tests for your web apps, written and maintained as code by AI agents, and run on infra that lets you ship fast.
Product walkthrough
Trusted by fast growing teams
01 · Black box
Test what your users see
Our tests don't know or care about your source code. They drive a real browser against your app (click, type, and check what's on the screen) so they stay put when the code underneath changes.
02 · Infra
Fast infra for browser tests
Playwright on CI splits tests by file order, so one slow shard holds up the whole run. We schedule every test from its duration history, longest first, so shards finish together.
03 · Agent
A suite that maintains itself
When your app changes, the agent figures out whether a failure is a bug, a flake, or a test that drifted, then fixes the test or tells you about the bug, in Slack, with evidence.
04 · Composable
Primitives you can build on
Everything in the dashboard is a primitive with an API and a CLI.
Stories and writing
- Your agents don't belong in your codebase
- Writing E2E tests is the easy part. Keeping them green is what kills you.
- Unit tests didn't catch what our coding agents are breaking.
- 500+ Playwright tests on every PR, no QA team
- videostil: Bringing Video Understanding to Every LLM
- Appwright: A new test framework for mobile apps






