Give Your Optimizely Devs (and Agents) Visual Guardrails to Prevent Bugs. Save your spot for the Oct. 29th webinar
Give Your Optimizely Devs (and Agents) Visual Guardrails to Prevent Bugs. Save your spot for the Oct. 29th webinar
Wondering how to choose between Playwright vs Selenium for your test automation? Read on to see a comparison between the two popular test automation tools.
When it comes to web test automation, Selenium has been the dominant industry tool for several years. However, there are many other automated testing tools on the market. Playwright is a newer tool that has been gaining popularity. How do their features compare, and which one should you choose?
Selenium is a long-running open source tool for browser automation. It was originally conceived in 2004 by Jason Huggins, and has been actively developed ever since. Selenium is a widely-used tool with a huge community of users, and the Selenium WebDriver interface even became an official W3C Recommendation in 2018.
The framework is capable of automating and controlling web browsers and interacting with UI elements, and it’s the most popular framework in the industry today. There are several tools in the Selenium suite, including:
The impact of Selenium goes even beyond the core framework, as a number of other popular tools, such as Appium and WebDriverIO, have been built directly on top of Selenium’s API.
Selenium is under active development and recently unveiled a major version update to Selenium 4. It supports just about all major browsers and popular programming languages. Thanks to a wide footprint of use and extensive community support, the Selenium open source project continues to be a formidable presence in the browser automation space.
Playwright is a relatively new open source tool for browser automation, with its first version released by Microsoft in 2020. It was built by the team behind Puppeteer, which is a headless testing framework for Chrome/Chromium. Playwright goes beyond Puppeteer and provides support for multiple browsers, among other changes.
Playwright is designed for end-to-end automated testing of web apps. It’s cross-platform, cross-browser and cross-language, and includes helpful features like auto-waiting. It is specifically engineered for the modern web and generally runs very quickly, even for complex testing projects.
While far newer than Selenium, Playwright is picking up steam quickly and has a growing following. Due in part to its young age, it supports fewer browsers/languages than Selenium, but by the same token it also includes newer features and capabilities that are more aligned with the modern web. It is actively developed by Microsoft.
Selenium and Playwright are both capable web automation tools, and each has its own strengths and weaknesses. Depending on your needs, either one could serve you best. Do you need a wider array of browser/language support? How much does a long track record of support and active development matter to you? Is test execution speed paramount?
Each tool is open source, cross-language, and developer friendly. Both support CI/CD (via Jenkins, Azure Pipelines, etc.), and advanced features like screenshot testing and automated visual testing. However, there are some key architectural and historical differences between the two that explain some of their biggest differences.
It’s important to consider your own needs and pain points when choosing your next test automation framework. The table below will help you compare Playwright vs Selenium.
| Criteria | Playwright | Selenium |
|---|---|---|
| Browser Support | Chromium, Firefox, and WebKit (note: Playwright tests browser projects, not stock browsers) | Chrome, Safari, Firefox, Opera, Edge, and IE |
| Language Support | Java, Python, .NET C#, TypeScript and JavaScript. | Java, Python, C#, Ruby, Perl, PHP, and JavaScript |
| Test Runner Frameworks Support | Jest/Jasmine, AVA, Mocha, and Vitest | Jest/Jasmine, Mocha, WebDriver IO, Protractor, TestNG, JUnit, and NUnit |
| Operating System Support | Windows, Mac OS and Linux | Windows, Mac OS, Linux and Solaris |
| Architecture | Headless browser with event-driven architecture | 4-layer architecture (Selenium Client Library, JSON Wire Protocol, Browser Drivers and Browsers) |
| Integration with CI | Yes | Yes |
| Prerequisites | NodeJS | Selenium Bindings (for your language), Browser Drivers and Selenium Standalone Server |
| Real Device Support | Native mobile emulation (and experimental real Android support) | Real device clouds and remote servers |
| Community Support | Smaller but growing set of community resources | Large, established collection of documentation and support options |
| Open Source | Free and open source, backed by Microsoft | Free and open source, backed by large community |
Is Selenium better than Playwright? Or is Playwright better than Selenium? Selenium and Playwright both have a number of things going for them – there’s no easy answer here. When choosing between Selenium vs Playwright, it’s important to understand your own requirements and research your options before deciding on a winner.
A helpful way to go beyond lists of features and try to get a feel for the practical advantages of each tool is to go straight to the code and compare real-world examples side by side. At Applitools, our goal is to make test automation easier for you – so that’s what we did!
In the video below, you can see a head-to-head comparison of Playwright vs Selenium. Angie Jones and Andrew Knight take you through ten rounds of a straight-to-the-code battle, with the live audience deciding the winning framework for each round. Check it out for a unique look at the differences between Playwright and Selenium.
If you like these code battles and want more, we’ve also pitted Playwright vs Cypress and Selenium vs Cypress – check out all our versus battles here.
In fact, our original Playwright vs Cypress battle (recap here) was so popular that we’ve even scheduled our first rematch. Who will win this time? Register for the Playwright vs Cypress Rematch now to join in and vote for the winner yourself!
Want to learn more about Playwright or Selenium? Keep reading below to dig deeper into the two tools.
Playwright and Selenium are both powerful test automation frameworks, but Playwright is newer and optimized for speed with built-in support for modern browsers, while Selenium has broad compatibility and an established community. These differences make Playwright ideal for high-speed environments and Selenium suitable for extensive browser compatibility.
Yes, Playwright typically offers a simpler setup process with built-in browser support, reducing configuration time. Selenium setup may involve additional components like WebDriver for each browser, making it slightly more complex to configure.
For end-to-end testing, Selenium’s compatibility with a broader range of browsers makes it a good choice for diverse environments while Playwright offers better speed and newer features.
While you can technically use Playwright and Selenium together, most teams choose one based on project needs. Playwright is often chosen for speed, while Selenium is preferred for its broad support and established ecosystem.
Playwright provides a modern API that simplifies complex UI interactions, such as hovering, clicking, and waiting for elements. Selenium also supports these interactions but often requires additional configuration or custom code.
