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Seleniumgeckodriver
Free

Free and open source under the Apache 2.0 licence.

 Free

Free and open source under the MPL-2.0 licence.

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

Checked October 2, 2026

Checked October 8, 2026

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