Flecha documentation
Flecha is a free, open-source Chromium browser for macOS, made for people who write code. It has a vertical sidebar with Spaces, a command bar that understands developer shortcuts, and an MCP bridge that lets your coding agent see and drive your tabs. There is no account and no telemetry: everything stays on your Mac.
Start here
Section titled “Start here”Install FlechaDownload for Apple silicon or Intel Macs and get set up.
Switch from ArcBring your Spaces, pinned tabs, favorites and history.
Command barEvery command: gh, npm, mdn, caniuse, JWT decoding and more.
Keyboard shortcutsThe full list, and how to record your own.
Guides
Section titled “Guides”Tabs and the sidebarFavorites, pinned tabs, folders and Today tabs that archive themselves.
SpacesKeep projects apart, each with its own cookies and logins if you want.
Developer toolsLocal, staging and production in one key, a phone view and your dev servers.
BoostsYour own TypeScript and CSS on any site.
Coding agents
Section titled “Coding agents”The MCP bridgeWhat agents can do in Flecha, and every tool they get.
Claude CodeConnect Claude Code to your browser in one command.
CursorAdd Flecha to Cursor's MCP servers.
Leaving Arc?
Section titled “Leaving Arc?”Arc stops working on December 22, 2026. See the best Arc alternatives in 2026, or compare Flecha with Arc, Dia, Zen and Chrome.
Help and source
Section titled “Help and source”Flecha is MIT-licensed. The code, releases and issue tracker are on GitHub. Questions and bug reports are welcome in Issues. Want to contribute? Start with how Flecha is built.