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How Stably Works

Stably Platform
Interfaces
Web Recorder & AI Editor
Generate, edit, and run tests in the Web. Includes recorder and AI editor.
CLI
Interactive CLI to create tests with AI. Allows running tests locally or in CI.
Foundation
Stably Playwright SDK
Playwright extension that powers assertions, extraction, and agent actions.
Stably Test Reporter + Analytics
Centralized reporting, traces, and AI analysis across runs.
As shown in the diagram, Stably is the AI layer for Playwright — combining a drop-in SDK that make your end-to-end tests more capable, stable, and autonomous with an optionl reporter components for collecting tests results and providing AI insights. On top of the powerful core, we offer both a web and CLI experience for creating, editing, and executing tests.
Stably is flexible! While we provide a powerful SDK at the core, writing code is optional.

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Why Stably?

  • More Coverage — test dynamic UX like charts, graphs, and canvas that static assertions miss.
  • Fewer Flakes — auto-heal and caching keep suites green and deterministic.
  • Faster Authoring — create tests faster with AI-assisted authoring and repair.
  • Edit Your Way — use our web editor, interactive CLI, or your favorite IDE.
  • No Limits — powered by real code, so you’re never constrained like other no-code platforms.
  • Native Git — built-in version control, not a workaround bolted on top.

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Trusted by Builders

Backed by Y Combinator and ▲ Vercel Ventures, Stably is used by hundreds of fast-growing teams.
The founding team previously built infrastructure at Google Chrome and Uber.

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Next Step

Quickstart

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