Testing and QA

In-browser iOS and Android simulators and emulators for running and testing mobile apps.

Hosting for mobile app builds so testers can install them from a link.

Visual regression testing that compares screenshots between builds.

• Open source

Continuous benchmarking suite that tracks performance and flags regressions in CI.

Codeless browser test recorder for web apps, running tests locally.

Browser extension auditing sites against 50+ SEO, performance and security checks.

Synthetic monitoring for APIs and web apps, with checks written as code using Playwright.

End-to-end and component testing framework for browser apps, plus a hosted results dashboard.

• Open source

Upload iOS and Android builds and share install links straight to devices.

Distribution hub for Android, iOS and desktop builds, aimed at testers or direct installs.

• Open source

Mobile app beta distribution for sharing test builds.

Hosted Selenium Grid for running automated browser tests in the cloud.

Over-the-air distribution of iOS and Android builds through private links.

Browser extension that captures bug reports with screen, console and network details.

Web UI test automation that works without writing element selectors.

AI-assisted visual verification and test runs for web apps.

• No card

Beta distribution service for iOS and Android test builds.

API and load test generator that builds tests from captured network traffic.

Visual regression testing for Storybook, Ladle and Histoire stories and full pages.

Page speed and load behaviour analyzer with optimization experiments.

Visual snapshot testing for web apps, static sites and component libraries.

Test case management for QA teams covering test runs, defects and reporting.

Rechecks a site's performance, journeys, visuals, security, SEO and accessibility after each deploy.

• No card

Codeless mobile UI test automation using computer vision, for native, Flutter, React Native and web apps.

On-page SEO checker that crawls a site and suggests improvements.

SDK for mobile apps that lets testers and users send bug reports and feedback from inside the app.

Screenshot comparison testing for React Native apps on iOS and Android simulators.

Online playground for writing and running cross-browser UI tests as readable scripts.

• No sign-up

Screenshot review for pull requests where people approve visual changes captured in CI.

• Open source

Synthetic browser checks run from many regions, with AI test generation and self-healing.

Dashboard for automated test results plus manual tests kept as code in GitHub.

• For open source

Test result dashboards, release history and test case tracking, plus an MCP server for agents.

Screenshot diffing for Vitest, Playwright and Storybook suites, designed for AI coding agents.

• No card

User research platform for testing designs and mockups with real participants.

Visitor recordings and UX research tools for websites and apps.

Browser-hosted iOS, Android and TV simulators with AI test automation from recordings or prompts.

Browser extension that records reproducible bug reports in one click.

• Personal use

Automated API tests that run on deploys and on a schedule to catch regressions.

Benchmark tracking in CI that reports performance regressions on pull requests.

• For open source

Browser recorder that captures user actions and turns them into replayable scripts.

Website speed analysis with page load reports and suggestions for improvement.

Test automation suite with Katalon Studio, TestOps, TestCloud and a recorder extension.

API testing toolkit that records real traffic to generate end-to-end tests and mocks.

• For open source

Hosted load testing that sends traffic to your web app or API.

Downloadable sample media, document and archive files for QA work.

Test sandbox for sending and receiving SMS messages during development.

Checker comparing a page's server-rendered HTML against its fully rendered version.

Cloud Selenium testing on real browsers and mobile devices.

• For open source

Monitoring for analytics tags, marketing pixels and tracking plans, in production or regression tests.