Selenium

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Score7.0

Rank#9 of 63

PriceFree

Free planYes

Runs onLinux, macOS, Self-hosted, Web, Windows

Summary

Selenium is a free suite of tools for automating web browsers, mainly to test web applications. Its WebDriver lets teams control browsers locally or remotely using bindings for .NET/C#, Ruby, Java, Python, and JavaScript. Selenium IDE is a browser add-on for recording and replaying interactions in Chrome, Firefox, and Edge. For distributed work, Selenium Grid runs tests across machines and combinations of browsers and operating systems. Grid offers Standalone, Hub and Node, and Distributed configurations, with Docker and Kubernetes deployment resources also linked. Selenium Manager can find, download, and cache browser releases and drivers. The documentation covers browser-specific functionality for Chrome, Edge, Firefox, Internet Explorer, and Safari. Grid guides name GitHub Actions and Jenkins as CI/CD examples. The project began in 2004 at ThoughtWorks in Chicago. Grid has no authentication by default, and Selenium advises keeping it on a secure network and restricting external access. The latest Opera driver functionality is unsupported.

Who it is for

Selenium suits teams that need browser automation for web application testing, including those writing tests in its supported client languages. It also fits teams seeking distributed test execution or a browser-based recording tool.

What is good

Free browser automation suite.
WebDriver bindings for five listed languages.
Grid distributes tests across machines and platforms.
IDE records and replays browser interactions.
Manager handles browser and driver downloads.

What to know first

Latest Opera driver functionality is unsupported.
Grid has no authentication by default.

Verdict

Selenium offers browser automation through WebDriver, IDE, and Grid, with support for several languages and browser-specific functionality. Teams using Grid should secure it against external access; the latest Opera driver functionality is not supported.

Selenium plans and pricing

All plans

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

Compared on browser automation tools

Free plan: Yesselenium.dev

Facts

Purpose: Selenium is a suite of tools for automating web browsers, primarily for testing web applications.selenium.dev · 2 Oct 2026
WebDriver: WebDriver provides language bindings to drive browsers locally or remotely, and is a W3C Recommendation.selenium.dev · 2 Oct 2026
IDE: Selenium IDE is a browser add-on for recording and playing back interactions, and supports Chrome, Firefox, and Edge.selenium.dev · 2 Oct 2026
Grid: Selenium Grid distributes tests across machines and browser and operating system combinations.selenium.dev · 2 Oct 2026
Languages: The main project supports client bindings for .NET/C#, Ruby, Java, Python, and JavaScript.selenium.dev · 2 Oct 2026
Browsers: The documentation lists browser-specific functionality for Chrome, Edge, Firefox, Internet Explorer, and Safari.selenium.dev · 2 Oct 2026
Driver management: Selenium Manager can discover, download, and cache browser releases and drivers for Selenium.selenium.dev · 2 Oct 2026
Deployment: Grid can run in Standalone, Hub and Node, or Distributed configurations; the downloads page also links to Docker and Kubernetes deployment resources.selenium.dev · 2 Oct 2026
CI integrations: The Grid guide names GitHub Actions and Jenkins as examples of CI/CD tools where Grid can be set up.selenium.dev · 2 Oct 2026
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.selenium.dev · 2 Oct 2026
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.selenium.dev · 2 Oct 2026
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.selenium.dev · 2 Oct 2026
Notable limit: The project states that Selenium does not support the latest Opera driver functionality and that the driver is officially unsupported.selenium.dev · 2 Oct 2026
Origins: The project history says Selenium began in 2004 at ThoughtWorks in Chicago, where Jason Huggins built the initial Core mode.selenium.dev · 2 Oct 2026