Selenium

Selenium is ranked #10 of 63 in browser automation tools on Freedom251. It runs on Linux, macOS, Self-hosted, Web, Windows. There is a free plan.

Selenium plans and pricing

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Selenium Free Open source browser automation tools and libraries selenium.dev · 2 Oct 2026

Compared on browser automation tools

Free plan: Yes

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SteelNen Labs, Inc. Free plan Open sourceapiself-hostedWeb

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Selenium

Purpose: Selenium is a suite of tools for automating web browsers, primarily for testing web applications.
WebDriver: WebDriver provides language bindings to drive browsers locally or remotely, and is a W3C Recommendation.
IDE: Selenium IDE is a browser add-on for recording and playing back interactions, and supports Chrome, Firefox, and Edge.
Grid: Selenium Grid distributes tests across machines and browser and operating system combinations.
Languages: The main project supports client bindings for .NET/C#, Ruby, Java, Python, and JavaScript.
Browsers: The documentation lists browser-specific functionality for Chrome, Edge, Firefox, Internet Explorer, and Safari.
Driver management: Selenium Manager can discover, download, and cache browser releases and drivers for Selenium.
Deployment: Grid can run in Standalone, Hub and Node, or Distributed configurations; the downloads page also links to Docker and Kubernetes deployment resources.
CI integrations: The Grid guide names GitHub Actions and Jenkins as examples of CI/CD tools where Grid can be set up.
Security: The Grid guide warns that Grid must be protected from external access with appropriate firewall permissions because exposure can allow access to infrastructure, internal apps and files, or custom binary execution.
Grid authentication: The Selenium project says Grid has no authentication by default and advises placing it behind a secure network; it documents ways to secure it.
Support and community: The project directs contributors to its Developers Group and is a member of the Software Freedom Conservancy, a 501(c)(3) nonprofit.
Notable limit: The project states that Selenium does not support the latest Opera driver functionality and that the driver is officially unsupported.
Origins: The project history says Selenium began in 2004 at ThoughtWorks in Chicago, where Jason Huggins built the initial Core mode.
Price from: Free

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Where it ranks on Freedom251

Best Browser Automation Tools in 2026#10 of 63
Best Functional Testing Software in 2026#8 of 38
Best Browser Testing Software in 2026#6 of 34
Best GUI Testing Software in 2026#10 of 33
Best End-to-End Testing Software in 2026#7 of 30
Best Cross-Browser Testing Software in 2026#5 of 25

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Sources

selenium.dev· checked 2 Oct 2026
selenium.dev/documentation/webdriver/· checked 2 Oct 2026
selenium.dev/downloads/· checked 2 Oct 2026
selenium.dev/documentation/grid/· checked 2 Oct 2026
selenium.dev/documentation/webdriver/browsers/· checked 2 Oct 2026
selenium.dev/documentation/selenium_manager/· checked 2 Oct 2026
selenium.dev/documentation/grid/getting_started/· checked 2 Oct 2026
selenium.dev/blog/2024/protecting-unsecured-selenium· checked 2 Oct 2026
selenium.dev/about/· checked 2 Oct 2026
selenium.dev/documentation/getting_started/installin· checked 2 Oct 2026