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geckodriverSelenium
Free

Free and open source under the MPL-2.0 licence.

 Free

Free and open source under the Apache 2.0 licence.

Windows, macOS, Linux, Command line Windows, Self-hosted, Command line
  • Implements the WebDriver HTTP API
  • Connects clients to Firefox through Marionette
  • Widely used standard for browser automation
  • Grid distributes tests across many machines and browsers
  • A browser automation component rather than a general purpose browser
  • Requires writing test code
  • Running a Grid takes setup and maintenance
Downloadable app Downloadable app, Self-hosted
Open source Open source
License: MPL-2.0 License: Apache-2.0
Not stated if an account is needed No account needed
Not stated if it works offline Not stated if it works offline

Checked October 8, 2026

Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.