Cypress is software to create tests for modern web applications, debug them visually, and automatically run them in continuous integration builds.
This software lets you write all types of tests: End-to-end tests, component tests, integration tests, and unit tests.
Watch your end-to-end and component tests run in real-time as you develop your applications. Cypress’s simple, yet powerful API runs as fast as your browser can render content.
This is free and open source software.
Features include:
- No servers, drivers, or other dependencies to install or configure.
- Debug failed tests using the in-browser developer tools you already use.
- Deterministically interacts with your application the same way as your users so you can discover intermittent bugs before your users do.
- Easily integrate Cypress with your current CI provider. Run Cypress in CI and you will know as soon as there is a failure.
- Time Travel: Cypress takes snapshots as your tests run. Hover over commands in the Command Log to see exactly what happened at each step.
- Debuggability: Stop guessing why your tests are failing. Debug directly from familiar tools like Developer Tools.
- Automatic Waiting: Never add waits or sleeps to your tests. Cypress automatically waits for commands and assertions before moving on. No more async hell.
- Spies, Stubs, and Clocks: Verify and control the behavior of functions, server responses, or timers. The same functionality you love from unit testing is right at your fingertips.
- Network Traffic Control: Easily control, stub, and test edge cases without involving your server. You can stub network traffic however you like.
- Consistent Results: The architecture doesn’t use Selenium or WebDriver.
- Screenshots and Videos: View screenshots taken automatically on failure, or videos of your entire test suite when run from the CLI. Record to Cypress Cloud to store them with your test results for zero-configuration debugging.
- Cross browser Testing: Run tests within Firefox and Chrome-family browsers (including Edge and Electron) locally and optimally in a Continuous Integration pipeline.
- Smart Orchestration: Once you’re set up to record to Cypress Cloud, easily parallelize your test suite, rerun failed specs first with Spec Prioritization, and cancel test runs on failures with Auto Cancellation for tight feedback loops.
- Flake Detection: Discover and diagnose unreliable tests.
Website: www.cypress.io
Support: Documentation, GitHub Code Repository
Developer: Cypress.io
License: MIT License
Cypress is written in JavaScript and TypeScript. Learn JavaScript with our recommended free books and free tutorials. Learn TypeScript with our recommended free books and free tutorials.
Return to Test Automation Tools
| Popular series | |
|---|---|
 | The largest compilation of the best free and open source software in the universe. Each article is supplied with a legendary ratings chart helping you to make informed decisions. |
 | Hundreds of in-depth reviews offering our unbiased and expert opinion on software. We offer helpful and impartial information. |
 | Replace proprietary software with open source alternatives: Google, Microsoft, Apple, Adobe, IBM, Autodesk, Oracle, Atlassian, Corel, Cisco, Intuit, and SAS. |
 | Awesome Free Linux Games Tools showcases a series of tools that making gaming on Linux a more pleasurable experience. This is a new series. |
 | Machine Learning explores practical applications of machine learning and deep learning from a Linux perspective. We've written reviews of more than 40 self-hosted apps. All are free and open source. |
 | New to Linux? Read our Linux for Starters series. We start right at the basics and teach you everything you need to know to get started with Linux. |
 | Alternatives to popular CLI tools showcases essential tools that are modern replacements for core Linux utilities. |
 | Essential Linux system tools focuses on small, indispensable utilities, useful for system administrators as well as regular users. |
 | Linux utilities to maximise your productivity. Small, indispensable tools, useful for anyone running a Linux machine. |
 | Surveys popular streaming services from a Linux perspective: Amazon Music Unlimited, Myuzi, Spotify, Deezer, Tidal. |
 | Saving Money with Linux looks at how you can reduce your energy bills running Linux. |
 | Home computers became commonplace in the 1980s. Emulate home computers including the Commodore 64, Amiga, Atari ST, ZX81, Amstrad CPC, and ZX Spectrum. |
 | Now and Then examines how promising open source software fared over the years. It can be a bumpy ride. |
 | Linux at Home looks at a range of home activities where Linux can play its part, making the most of our time at home, keeping active and engaged. |
 | Linux Candy reveals the lighter side of Linux. Have some fun and escape from the daily drudgery. |
 | Getting Started with Docker helps you master Docker, a set of platform as a service products that delivers software in packages called containers. |
 | Best Free Android Apps. We showcase free Android apps that are definitely worth downloading. There's a strict eligibility criteria for inclusion in this series. |
 | These best free books accelerate your learning of every programming language. Learn a new language today! |
 | These free tutorials offer the perfect tonic to our free programming books series. |
 | Linux Around The World showcases usergroups that are relevant to Linux enthusiasts. Great ways to meet up with fellow enthusiasts. |
 | Stars and Stripes is an occasional series looking at the impact of Linux in the USA. |