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Testing & Browser

Playwright vs Selenium: Which MCP should you use?

🎭

Playwright

Cross-browser automation by Microsoft

VS
🧪

Selenium

The original cross-browser test framework

TL;DR

Selenium is the original cross-browser test framework — 20 years old, huge ecosystem, mandatory for legacy IE/old-Safari coverage. Playwright is modern, faster, has auto-wait, and doesn't need a separate driver. For new projects in 2026, Playwright wins on almost every axis except raw browser breadth.

Playwright: 4 winsSelenium: 4 wins
🎭

Pick Playwright

Pick Playwright when you want speed, auto-wait, and modern DX on evergreen browsers.

🧪

Pick Selenium

Pick Selenium when you need legacy browsers, BrowserStack/Sauce grids, or existing team expertise.

Feature-by-feature comparison

Setup

A

Playwright

Zero driver config

Selenium

WebDriver per browser

Speed

A

Playwright

Fast (CDP + WebKit)

Selenium

Slower (W3C protocol)

Auto-wait

A

Playwright

Built-in

Selenium

Explicit WebDriverWait

Cross-browser

B

Playwright

Chromium, FF, WebKit

Selenium

Every browser ever

Cloud grid support

B

Playwright

Growing

Selenium

BrowserStack, Sauce Labs

Language bindings

B

Playwright

TS/JS, Py, Java, .NET

Selenium

Every major language

Debugging tools

A

Playwright

Trace viewer, codegen

Selenium

Basic

Community / age

B

Playwright

4+ years

Selenium

20+ years

🎭

Best for

Playwright

  • Setup: Zero driver config
  • Speed: Fast (CDP + WebKit)
  • Auto-wait: Built-in
  • Debugging tools: Trace viewer, codegen
🧪

Best for

Selenium

  • Cross-browser: Every browser ever
  • Cloud grid support: BrowserStack, Sauce Labs
  • Language bindings: Every major language
  • Community / age: 20+ years

Migration path

driver.findElement(By.css(...)) → page.locator(...). WebDriverWait explicit waits → remove (Playwright auto-waits). driver.quit() → test teardown fixtures. Cloud grids: many (BrowserStack, Sauce) now support Playwright natively. Rewrite test-by-test, start with your flakiest Selenium suites first.

Frequently asked questions

What is the main difference between Playwright and Selenium?

Selenium is the original cross-browser test framework — 20 years old, huge ecosystem, mandatory for legacy IE/old-Safari coverage. Playwright is modern, faster, has auto-wait, and doesn't need a separate driver. For new projects in 2026, Playwright wins on almost every axis except raw browser breadth. In short: Playwright — Cross-browser automation by Microsoft. Selenium — The original cross-browser test framework.

When should I pick Playwright over Selenium?

Pick Playwright when you want speed, auto-wait, and modern DX on evergreen browsers.

When should I pick Selenium over Playwright?

Pick Selenium when you need legacy browsers, BrowserStack/Sauce grids, or existing team expertise.

Can I migrate from one to the other?

driver.findElement(By.css(...)) → page.locator(...). WebDriverWait explicit waits → remove (Playwright auto-waits). driver.quit() → test teardown fixtures. Cloud grids: many (BrowserStack, Sauce) now support Playwright natively. Rewrite test-by-test, start with your flakiest Selenium suites first.

Do Playwright and Selenium both work with MCP-compatible AI agents?

Yes. Both have MCP servers installable via MCPizy (mcpizy install playwright and mcpizy install selenium). They work identically across Claude Code, Claude Desktop, Cursor, Windsurf, and any other MCP-compatible client. You can install both side by side and route queries in your agent's prompt.

More Testing & Browser comparisons

🎭VS🧑‍🎤

Playwright vs Puppeteer

Playwright (Microsoft) is the spiritual successor to Puppeteer — same core team, but cross-browser (Chromium, Firefox, WebKit), better auto-wait, built-in test runner, and first-class language bindings. Puppeteer remains solid for Chrome-only scraping/automation, but Playwright is the default for new projects.

🎭VS🌲

Playwright vs Cypress

Cypress pioneered modern E2E DX (time-travel debugger, docs, VS Code-feel). Playwright caught up and surpassed on: cross-browser, multi-tab, iframe handling, parallelization, and API testing. Cypress still has the nicer 'first 30 minutes' experience; Playwright wins at scale.

🌐VS🎭

BrowserStack vs Playwright

Not truly competitors — BrowserStack is a real-device cloud (run your tests on 3000+ browser/OS combos including real iOS/Android), and Playwright is the test framework. Most teams use both: write tests in Playwright, run them on BrowserStack's grid for coverage they can't get locally.

Install both with MCPizy

Not sure? Run both side by side — swap between them in your AI agent with a single config line.

$mcpizy install playwright && mcpizy install selenium
🎭Install Playwright🧪Install Selenium
Free to install. Swap between them in your agent config.