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Licensing E2E Testing Frameworks

18 Nov 2025 🔖 web development
💬 EN

Table of Contents

If you’re in an enterprise setting, you might need to ask for permission, not forgiveness, when it comes to importing third-party programming language libraries and software development kits (SDKs) into your codebases.

If you’re starting a browser-based end-to-end (“E2E”) test automation journey, you might not care which of the big six libraries you use (Playwright, Puppeteer, Selenium, Cypress, Appium, WebDriverIO), so long as the whole company is already approved to import it as a dependency.

Below is some easy-to-copy-and-paste content, so that you can open a tidy helpdesk ticket or send an email asking if anything is already approved for use at your workplace.

List form

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  1. Microsoft’s Playwright, for Java, Apache 2.0 license:  https://github.com/microsoft/playwright-java/blob/main/LICENSE
  2. Microsoft’s Playwright, for JavaScript/NodeJS, Apache 2.0 license:  https://github.com/microsoft/playwright/blob/main/LICENSE
  3. Microsoft’s Playwright, for .NET/C#, MIT license:  https://github.com/microsoft/playwright-dotnet/blob/main/LICENSE
  4. Microsoft’s Playwright, for Python, Apache 2.0 license:  https://github.com/microsoft/playwright-python/blob/main/LICENSE
  5. Google’s Puppeteer, for JavaScript/NodeJS, Apache 2.0 license:  https://github.com/puppeteer/puppeteer/blob/main/LICENSE
  6. Selenium Project’s Selenium, for .NET/C# + Java + JavaScript/NodeJS + Python + Ruby (all 5 languages supported via one codebase), Apache 2.0 license:  https://github.com/SeleniumHQ/selenium/blob/trunk/LICENSE
  7. Cypress.io’s Cypress, for JavaScript/NodeJS, MIT license:  https://github.com/cypress-io/cypress/blob/develop/LICENSE
  8. OpenJS Foundation’s Appium, for Java, Apache 2.0 license:  https://github.com/appium/java-client/blob/master/LICENSE
  9. OpenJS Foundation’s Appium, for JavaScript/NodeJS, Apache 2.0 license:  https://github.com/appium/appium/blob/master/LICENSE
  10. OpenJS Foundation’s Appium, for .NET/C#, Apache 2.0 license:  https://github.com/appium/dotnet-client/blob/main/LICENSE
  11. OpenJS Foundation’s Appium, for Python, Apache 2.0 license:  https://github.com/appium/python-client/blob/master/LICENSE
  12. OpenJS Foundation’s Appium, for Ruby, Apache 2.0 license:  https://github.com/appium/ruby_lib_core/blob/master/LICENSE.txt
  13. OpenJS Foundation’s WebDriverIO, for JavaScript/NodeJS, MIT license:  https://github.com/webdriverio/webdriverio/blob/main/LICENSE

Table form

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Author SDK Name Supported Programming Language Cost License Type URL
Microsoft Playwright Java $0 Apache 2.0 https://github.com/microsoft/playwright-java/blob/main/LICENSE
Microsoft Playwright JavaScript/NodeJS $0 Apache 2.0 https://github.com/microsoft/playwright/blob/main/LICENSE
Microsoft Playwright .NET/C# $0 MIT https://github.com/microsoft/playwright-dotnet/blob/main/LICENSE
Microsoft Playwright Python $0 Apache 2.0 https://github.com/microsoft/playwright-python/blob/main/LICENSE
Google Puppeteer JavaScript/NodeJS $0 Apache 2.0 https://github.com/puppeteer/puppeteer/blob/main/LICENSE
Selenium Project Selenium .NET/C#, Java, JavaScript/NodeJS, Python, Ruby
(all 5 languages supported via one codebase)		 $0 Apache 2.0 https://github.com/SeleniumHQ/selenium/blob/trunk/LICENSE
Cypress.io Cypress JavaScript/NodeJS $0 MIT https://github.com/cypress-io/cypress/blob/develop/LICENSE
OpenJS Foundation Appium Java $0 Apache 2.0 https://github.com/appium/java-client/blob/master/LICENSE
OpenJS Foundation Appium JavaScript/NodeJS $0 Apache 2.0 https://github.com/appium/appium/blob/master/LICENSE
OpenJS Foundation Appium .NET/C# $0 Apache 2.0 https://github.com/appium/dotnet-client/blob/main/LICENSE
OpenJS Foundation Appium Python $0 Apache 2.0 https://github.com/appium/python-client/blob/master/LICENSE
OpenJS Foundation Appium Ruby $0 Apache 2.0 https://github.com/appium/ruby_lib_core/blob/master/LICENSE.txt
OpenJS Foundation WebDriverIO JavaScript/NodeJS $0 MIT https://github.com/webdriverio/webdriverio/blob/main/LICENSE

WCAG regression testing

I suppose while you’re at it, you might want to check in on these “Axe-Core” SDKs made by Deque, for automated regression testing against WCAG rules. After all, they integrate quite nicely into general-purpose browser-based E2E testing SDKs such as the ones above. Here’s a list for them, too:

List form

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  1. Deque’s axe-core-maven-html, for Java, MPL 2.0 license:  https://github.com/dequelabs/axe-core-maven-html/blob/develop/LICENSE
  2. Deque’s axe-core, for JavaScript/NodeJS, MPL 2.0 license:  https://github.com/dequelabs/axe-core/blob/develop/LICENSE
  3. Deque’s axe-core-npm, for JavaScript/NodeJS, MPL 2.0 license:  https://github.com/dequelabs/axe-core-npm/blob/develop/LICENSE
  4. Deque’s axe-core-nuget: “Commons”, for .NET/C#, MPL 2.0 license: https://github.com/dequelabs/axe-core-nuget/blob/develop/LICENSE-Deque.AxeCore.Commons.txt
  5. Deque’s axe-core-nuget: “Playwright”, for .NET/C#, MIT license: https://github.com/dequelabs/axe-core-nuget/blob/develop/LICENSE-Deque.AxeCore.Playwright.txt
  6. Deque’s axe-core-nuget: “Selenium”, for .NET/C#, MIT license: https://github.com/dequelabs/axe-core-nuget/blob/develop/LICENSE-Deque.AxeCore.Selenium.txt
  7. Deque’s axe-core-gems, for Ruby, MPL 2.0 license:  https://github.com/dequelabs/axe-core-gems/blob/develop/LICENSE

Table form

  • (click expander icon at left – it’s a rightward-facing triangle – if the table below is not showing up)
Author SDK Name Supported Programming Language Cost License Type URL
Deque axe-core-maven-html Java $0 MPL 2.0 https://github.com/dequelabs/axe-core-maven-html/blob/develop/LICENSE
Deque axe-core JavaScript/NodeJS $0 MPL 2.0 https://github.com/dequelabs/axe-core/blob/develop/LICENSE
Deque axe-core-npm JavaScript/NodeJS $0 MPL 2.0 https://github.com/dequelabs/axe-core-npm/blob/develop/LICENSE
Deque axe-core-nuget: “Commons” .NET/C# $0 MPL 2.0 https://github.com/dequelabs/axe-core-nuget/blob/develop/LICENSE-Deque.AxeCore.Commons.txt
Deque axe-core-nuget: “Playwright” .NET/C# $0 MIT https://github.com/dequelabs/axe-core-nuget/blob/develop/LICENSE-Deque.AxeCore.Playwright.txt
Deque axe-core-nuget: “Selenium” .NET/C# $0 MIT https://github.com/dequelabs/axe-core-nuget/blob/develop/LICENSE-Deque.AxeCore.Selenium.txt
Deque axe-core-gems Ruby $0 MPL 2.0 https://github.com/dequelabs/axe-core-gems/blob/develop/LICENSE
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