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This documentation is for Stably Classic. For the new Stably Web Editor, see Stably Web Editor Overview.
Stably Classic is our fully no-code testing platform that layers AI features on top of a visual editor. Many teams prefer it because they can design end-to-end tests without writing code while still getting intelligent assertions, auto-heal, and AI-driven actions. Stably Classic remains fully supported.

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Why we recommend Stably 2.0

We recommend new projects start with Stably 2.0 because it is built on our SDK. The code-first foundation makes it more flexible, lets you version tests alongside application code, and prevents you from hitting a capability ceiling as scenarios grow more complex. See the Stably 2.0 capabilities for how AI editing pairs with SDK-level extensibility.
  • Use SDK-backed code to extend flows with custom logic and libraries.
  • Keep tests in version control and reuse your existing CI/CD practices.
  • Mix AI features with precise Playwright control when you need it.
  • Stably Classic: Fully no-code with AI actions/assertions/auto-heal. Fastest for non-developers, but the UI surface can limit complex edge cases.
  • Stably 2.0: SDK-backed with an AI/visual editor. Same AI features plus code-level extensibility, version control, and CI/CD alignment—best for long-term scale.

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When Stably Classic is a good fit

  • You want the fastest path to author tests with a visual, no-code editor.
  • Your team prefers to avoid code but still wants AI assertions, AI actions, and auto-heal.
  • You are already using Stably Classic.

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When to choose Stably 2.0 instead

  • You need deeper flexibility (custom data setup, complex conditionals, or integrations).
  • You want tighter collaboration with engineers through pull requests and code reviews.
  • You expect tests to evolve with your app and do not want to be constrained by a no-code surface.

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Next steps

Start with Stably 2.0

Build new suites on the SDK-backed platform for maximum flexibility.

Use the Stably SDK

Write code-driven tests that combine AI features with Playwright control.

Run Classic tests

Keep existing Classic suites running and view results in the dashboard.