cypress-io/cypressPublic

What is cypress?

A fast, reliable, and developer-friendly end-to-end testing framework for modern web applications

What does cypress do?

Cypress is a next-generation front-end testing tool built for the modern web. Unlike older frameworks that rely on external WebDriver protocols, Cypress executes directly within the same run-loop as the application being tested, providing synchronous access to the DOM and eliminating the flakiness commonly associated with asynchronous testing. It supports both comprehensive end-to-end (E2E) testing and isolated component testing for popular frameworks like React, Angular, Vue, and Svelte. The tool offers an interactive test runner that allows developers to time-travel through test states, debug visually in real-time, and ensure high application reliability.

Who is cypress for?

Cypress is built for frontend developers, QA engineers, and full-stack teams who need to write reliable, fast tests for modern web applications. It is widely adopted across the industry as a standard tool for both E2E and component testing.

How do I get started with cypress?

npm install cypress --save-dev

How popular is cypress on GitHub?

cypress-io/cypress has 51,041 stars and 3,646 forks on GitHub, and gained 16 stars in the last 7 days.

What license does cypress use?

cypress-io/cypress is released under the MIT license.

• Landmark project

  51,041 stars

• Battle-tested

  11 years of history

• Very active

  2,397 commits in 52 weeks

• Community-driven

  ~557 contributors

• Well documented

  High community health score

• Permissive license

  MIT

• Continuous integration

  Automated checks passing

Cypress is a next-generation front-end testing tool built for the modern web. Unlike older frameworks that rely on external WebDriver protocols, Cypress executes directly within the same run-loop as the application being tested, providing synchronous access to the DOM and eliminating the flakiness commonly associated with asynchronous testing. It supports both comprehensive end-to-end (E2E) testing and isolated component testing for popular frameworks like React, Angular, Vue, and Svelte. The tool offers an interactive test runner that allows developers to time-travel through test states, debug visually in real-time, and ensure high application reliability.

Cypress is built for frontend developers, QA engineers, and full-stack teams who need to write reliable, fast tests for modern web applications. It is widely adopted across the industry as a standard tool for both E2E and component testing.

• In-browser execution: runs tests within the same environment as the application, ensuring faster execution and direct DOM access.
• Time-travel debugging: takes snapshots as tests run, allowing developers to hover over commands in the Command Log to see exactly what happened at each step.
• Automatic waiting: automatically waits for commands and assertions before moving on, eliminating the need for arbitrary sleep or wait timeouts.
• Network traffic control: provides the ability to stub, intercept, and mock network requests to test edge cases without backend dependencies.
• Component testing: supports mounting and testing individual UI components in isolation across major JavaScript frameworks.
• Cypress Cloud integration: optionally connects to Cypress Cloud to provide test parallelization, load balancing, and advanced analytics.

Getting started: npm install cypress --save-dev

1. v16.1.0v16.1.0Sep 15, 202611 downloads

   Changelog: https://docs.cypress.io/app/references/changelog#16-1-0

2. v16.0.0v16.0.0Sep 1, 202613 downloads

   Changelog: https://docs.cypress.io/app/references/changelog#16-0-0

3. v15.21.1v15.21.1Aug 25, 202611 downloads

   Changelog: https://docs.cypress.io/app/references/changelog#15-21-1

4. v15.21.0v15.21.0Aug 18, 20269 downloads

   Changelog: https://docs.cypress.io/app/references/changelog#15-21-0

5. v15.20.1v15.20.1Aug 10, 20266 downloads

   Changelog: https://docs.cypress.io/app/references/changelog#15-20-1

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