About WebdriverIO
This entry covers WebdriverIO, a modern test automation framework that drives browsers and mobile apps from Node.js. It is used for end-to-end tests as well as unit and component tests in the browser, and runs tests based on the WebDriver and WebDriver BiDi protocols and on Appium automation technology.
It works with popular test frameworks for BDD and TDD, such as Mocha, Jasmine and Cucumber, and can run tests locally or in the cloud on services including Sauce Labs, BrowserStack, TestingBot and TestMu AI, formerly LambdaTest. The project provides a developer guide, API reference, changelog and roadmap, and contributors can start in a prepared dev container using GitHub Codespaces or Gitpod.
WebdriverIO is written in TypeScript and licensed under MIT. It is installed as a development dependency in a JavaScript or TypeScript project, so there is nothing to host. Commercial support is available through a Tidelift subscription. It suits QA engineers and front-end teams who want one framework for web and mobile test automation.
Key features
- End-to-end, unit and component testing
- WebDriver and WebDriver BiDi support
- Appium integration for mobile apps
- Works with Mocha, Jasmine and Cucumber
- Local runs or cloud device providers
- Written in TypeScript for Node.js
Good fit for
- →Cross-browser end-to-end testing
- →Mobile app test automation with Appium
- →Running tests on BrowserStack or Sauce Labs
- Tags
- test-automation
- webdriver
- e2e-testing
- appium
- nodejs
- browser-testing
- mobile-testing
- typescript
WebdriverIO: questions and answers
- What is WebdriverIO used for?
- WebdriverIO is a Node.js test automation framework for browser and mobile apps, supporting end-to-end, unit and component tests via WebDriver, BiDi and Appium. It is a good fit for cross-browser end-to-end testing, mobile app test automation with Appium and running tests on BrowserStack or Sauce Labs.
- Is WebdriverIO open source?
- Yes. WebdriverIO is open source under the MIT licence. Its source code is on GitHub at webdriverio/webdriverio and is written mainly in TypeScript.
- Is WebdriverIO free?
- Yes. WebdriverIO is open source, so the software itself is free to use.
- What is WebdriverIO an alternative to?
- WebdriverIO is an open-source alternative to BrowserStack, Sauce Labs, Katalon and TestMu AI (LambdaTest). Other open-source alternatives to BrowserStack include Appium and Playwright.
- Is WebdriverIO actively maintained?
- Yes. The most recent commit to WebdriverIO was on 2 October 2026, and the latest release is v9.32.0, published on 20 September 2026. The project has 9.8k stars on GitHub.
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SaaS alternatives to WebdriverIO
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BrowserStack
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