A browser extension which adds a command launcher to your web browser.πŸš€
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Olian04 and cliffordfajardo Added "View Source" & "Toggle View Source" command (#15)
* Added "View Source" command

* Added "Toggle View Source" command
Latest commit 3c87dda Dec 1, 2017



Chrome version PRs Welcome MIT License Tweet

Cato - a browser extension that allows you to control your browser with simple commands.

Discuss it on Product Hunt 🐈


This browser extension available for:

Chrome Opera


Sample Commands
Fallback Searches and Calculator
Customize your launcher

Changing this extension's shortcut keys

  • By default to open Cato you can click the browser icon near your URL bar or you can use:
    • Mac: Command ⌘ + J
    • Windows and Linux: Ctrl + J
  • Alternatively, in Google Chrome, you can go to the URL chrome://extensions and scroll to the bottom and click Keyboard shortcuts

Contributing and Development

We're happy to receive suggestions and contributions. Please take a look at CONTRIBUTING.md to learn more about how to submit code, report bugs and so on.

Story Behind Cato

One day, I forgot my laptop at home while visiting a cousin's house. Luckily, he had a backup chromebook laptop I could use temporarily. Of course using this pc wasn't the same as my own laptop which had Alfred App, my text editors and a few other command-driven apps.

I'd gotten accustomed to simply typing everything I needed on my computer, without almost ever using my mouse. I wanted a similar command-driven experience in one of the apps I use most as a software developer - my web browser. Thus, Cato was born.

Now, with Cato, I can get nearly the same command-driven experiences that apps like Alfred App/Atom/VSCode/Spotlight have, but in my web browser on nearly any operating system! #yay πŸŽ‰πŸ»πŸŽŠ