Mearl

Automate pages with an agent, debug requests, and emulate mobile environments in your own browser.

Mearl is an open-source Chrome extension for web automation, request debugging, and mobile emulation. Connect an agent to work in your signed-in browser, where it can verify features, fill out forms, export reports, and take screenshots. Open the Mearl panel in Chrome DevTools to inspect requests, responses, and console logs. Replay requests or mock responses to test empty states, errors, and delays. Change the mobile viewport and time zone, or install an App profile to emulate an in-app web environment. Open the toolbar popup for URL, JSON, and QR tools. To control your local browser through the CLI, TypeScript SDK, or MCP, install the companion components and enable Agent service. Package recurring workflows as reusable Skills. Getting started https://mearlhq.github.io/mearl/en.html