Source code for 4chan's native extension.
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LICENSE Update copyright notice and contributors list Sep 21, 2015 Update Jan 8, 2015
extension.js Update May 8, 2013

4chan JS


In 2004, our very own DamageInc created the first 4chan extension as a Firefox add-on. Now, we've implemented these features directly into the site, open sourced it, and invite the community to contribute code and feedback.

In addition, we offer a read-only JSON API that you can read more about here.

Bugs and feature requests should be submitted to the repo's Issues page.

This code is released under a 3-clause BSD license, available here.

Many thanks to desuwa of The Yotsuba Catalog for being a total badass, and almost single-handedly bringing this project to fruition.

Thanks also to DamageInc for creating the original 4chan browser add-on, and to aeosynth (creator) and MayhemYDG (former maintainer) of 4chan X, for providing inspiration.