The toolbox
80 tools worth knowing about if you build with AI. No affiliate links, no paid placement, and no prices quoted — tiers change monthly and a stale price helps nobody.
Playwright
open-sourceBrowser automation and end-to-end testing framework from Microsoft, with a codegen recorder and trace viewer.
Best for: End-to-end browser tests
Vitest
open-sourceFast unit test runner for Vite projects, compatible with much of the Jest API and TypeScript out of the box.
Best for: Unit tests in Vite projects
CodeRabbit
freemiumAI code review tool that comments on pull requests with line-level suggestions and change summaries.
Best for: Automated pull request review
Greptile
paidAI code review service that indexes a whole codebase to flag bugs and inconsistencies in pull requests.
Best for: Codebase-aware review
Sentry
freemiumError monitoring and performance tracing platform with stack traces, session replay and release tracking.
Best for: Catching production errors
Storybook
open-sourceWorkshop for building and testing UI components in isolation, with visual and interaction testing add-ons.
Best for: Isolating and testing components