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     Works for native apps, flutter, react-native, web, ionic, and many more app frameworks. The free plan is limited to 10 tests for iOS and 10 for Android, but includes most of the features of the paid plans, including unlimited test runs.
   * [Requestly](https://requestly.com/) - Open-source Chrome Extension to Intercept, Redirect and Mock HTTP Requests.
     Featuring [Debugger](https://requestly.com/products/web-debugger/), [Mock Server](https://requestly.com/products/mock-server/), [API Client](https://requestly.com/products/api-client/) and [Session Recording](https://requestly.com/products/session-book/).  Redirect URLs, Modify HTTP Headers, Mock APIs, Inject custom JS, Modify GraphQL Requests, Generate Mock API Endpoints, Record session with Network & Console Logs. Create upto 10 rules in Free Tier. Free for open-source.
+  * [Sample Files](https://mzeeshan.me/tools/sample-files) - Collection of free test files across video, audio, document and archive formats, useful for testing and QA.
   * [seotest.me](https://seotest.me/) - Free on-page SEO website tester. 10 free website crawls per day. Useful SEO learning resources and recommendations on how to improve the on-page SEO results for any website regardless of technology.
   * [Sherlo](https://sherlo.io) - Visual regression testing for React Native apps. Free plan: 1,000 snapshots/month, iOS & Android simulators.
   * [snippets.uilicious.com](https://snippets.uilicious.com) - It's like CodePen but for cross-browser testing. UI-licious lets you write tests like user stories and offers a free platform - UI-licious Snippets - that allows you to run unlimited tests on Chrome with no sign-up required for up to 3 minutes per test run. Found a bug? You can copy the unique URL to your test to show your devs exactly how to reproduce the bug.