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title: What Is Gitter
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# Gitter is a chat room system popular with open source projects.

![A screenshot from Gitter](//discourse-user-assets.s3.amazonaws.com/original/2X/9/901b6ff18a83b746b1b7e96cb6907440d531d977.png)

<a href='https://gitter.im' target='_blank' rel='nofollow'>Gitter.im</a> is a rapidly growing startup based in London.

Free Code Camp has hundreds of Gitter rooms. These are accessible through Gitter's website, as well as <a href='https://gitter.im/apps' target='_blank' rel='nofollow'>desktop and mobile apps</a>.

You can view <a href='https://github.com/FreeCodeCamp/FreeCodeCamp/wiki/Official-Free-Code-Camp-Chat-Rooms' target='_blank' rel='nofollow'>all of our rooms</a> and join the ones you'd like to.

Gitter allows you to share <a href='https://github.com/FreeCodeCamp/freecodecamp/wiki/Pasting-Code-in-Gitter' target='_blank' rel='nofollow'>formatted code</a> with fellow campers.