All testing tools
193 tools across 17 categories. Filter by what you actually need — your language, your budget shape, whether it has to run on your own infrastructure.
18 tools
axe-core
Accessibility
The open-source accessibility rules engine almost every other tool is built on.
BrowserStack
Device Cloud
The largest browser and real-device cloud, with 3,500+ device/browser combinations.
ESLint
Code Quality
The JavaScript and TypeScript linter every project ends up using.
Lighthouse
Accessibility
Google's built-in audit for performance, accessibility, SEO and best practices.
Playwright
E2E & UI Testing
Microsoft's cross-browser automation library with tracing and auto-waiting built in.
Storybook
Unit & Component
Build components in isolation, then test the stories you already wrote.
Testing Library
Unit & Component
Query the DOM the way a user would, not the way the framework does.
Applitools Eyes
Visual Testing
Visual AI that compares screenshots the way a person would, not pixel by pixel.
axe DevTools
Accessibility
Deque's commercial layer over axe-core: guided manual testing and enterprise reporting.
Chromatic
Visual Testing
Visual testing and review built by the Storybook team, for Storybook.
Siteimprove
Accessibility
Enterprise accessibility, SEO and content-quality governance across whole websites.
TestMu AI
Device Cloud
Cost-competitive device cloud with an AI-assisted test-orchestration layer.
WAVE
Accessibility
Visual accessibility evaluation that shows problems in place on the page.
Level Access
Accessibility
Accessibility platform combined with expert audits and legal-risk support.
mabl
E2E & UI Testing
Low-code, AI-assisted test automation with self-healing locators.
Pa11y
Accessibility
Command-line accessibility testing for CI, with a dashboard for tracking over time.
IBM Equal Access Toolkit
Accessibility
Free accessibility checker and rules engine from IBM, with a strong developer extension.
Virtuoso QA
E2E & UI Testing
Natural-language authoring with self-healing, aimed at enterprise QA teams.