Best Free Unit Testing Software

Fast, easy and reliable end-to-end testing for anything that runs in a browser. Cypress has been made specifically for developers and QA engineers, to help them get more done. Cypress benefits from our amazing open-source community - and our tools are evolving better and faster than if we worked on them alone. Cypress is based on a completely new architecture. No more Selenium. Lots more power. Cypress takes snapshots as your tests run. Simply hover over commands in the Command Log to see exactly what happened at each step. Stop guessing why your tests are failing. Debug directly from familiar tools like Chrome DevTools. Our readable errors and stack traces make debugging lightning fast. Cypress automatically reloads whenever you make changes to your tests. See commands execute in real-time in your app. Never add waits or sleeps to your tests. Cypress automatically waits for commands and assertions before moving on. No more async hell.

AppHarbor is a fully hosted .NET Platform as a Service. AppHarbor can deploy and scale any standard .NET application to the cloud. AppHarbor is used by thousands of developers and businesses to host anything from personal blogs to high traffic web applications. AppHarbor lets you instantly deploy and scale .NET applications using your favorite versioning tool. Installing add-ons is just as easy. You push .NET and Windows code to AppHarbor using Git, Mercurial, Subversion or Team Foundation Server with the complimentary Git service or through integrations offered in collaboration with Bitbucket, CodePlex and GitHub. When AppHarbor receives your code it will be built by a build server. If the code compiles all unit tests contained in the compiled assemblies will be run. The result and progress of the build and unit test status can be monitored on the application dashboard. AppHarbor will call any service hooks that you add to notify you of the build result.

Early is an AI-driven tool designed to automate the generation and maintenance of unit tests, enhancing code quality and accelerating development processes. By integrating with Visual Studio Code (VSCode), Early enables developers to produce verified and validated unit tests directly from their codebase, covering a wide range of scenarios, including happy paths and edge cases. This approach not only increases code coverage but also helps identify potential issues early in the development cycle. Early supports TypeScript, JavaScript, and Python languages, and is compatible with testing frameworks such as Jest and Mocha. The tool offers a seamless experience by allowing users to quickly access and refine generated tests to meet specific requirements. By automating the testing process, Early aims to reduce the impact of bugs, prevent code regressions, and boost development velocity, ultimately leading to the release of higher-quality software products.

No WebDriver required. No manual timeouts needed. Cross-browser testing out-of-the-box. TestCafe does not require WebDriver or other testing software. It runs on Node.js and uses the browsers you already have. TestCafe frees you from the need to insert manual timeouts and use cumbersome boilerplate expressions. You’ll spend less time tracking down annoying issues and more time doing what matters most. TestCafe is available for free and distributed under the MIT license. We are committed to our open-source community and are actively extending TestCafe's capabilities. TestCafe’s intuitive syntax makes teams more productive from day one. Don’t let Internet Explorer push you over the Edge. Run your tests in desktop browsers and headless browsers. Connect to remote testing servers, mobile devices and cloud browser farms. Run your tests in multiple browsers at once to save time and computing resources.