webrain vs Playwright
Playwright is Microsoft’s open-source browser-automation library and testing framework (Node, Python, .NET, Java) with a first-party MCP server (@playwright/mcp). webrain is a purpose-built, open-source MCP server
for LLM-driven scraping and automation. Both drive Chromium over CDP.
Pick Playwright when you’re writing a browser test suite in your
existing language and want WebKit/Firefox coverage.
Pick webrain when an LLM/agent (Claude, Cursor, Copilot) must scrape,
navigate, extract, and authenticate as a service — no code, no runtime, MCP
out of the box.
Puppeteer sits alongside Playwright in the same category — Chrome-only and
lower-level — so the same “library vs MCP server” trade-off applies.