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4chan Mass Reply browser extension

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Inspired by /tv/'s posting culture, this browser extension aims to facilitate the creation of mass replies on 4chan.org and 4channel.org.

Features:

  • Ability to mimic many filename types
  • Add a meme website watermark to uploads
  • Change file hash
  • Automatically delete 4chan_pass cookie on ban evasion error
  • Bypass common wordfilters by replacing a letter in the filtered words with a similar letter
  • Automatically slide captcha into the right position
  • Re-attach the last selected file
  • Configurable mass reply with multiple targets
  • Soyquote text and filename
  • Automatically convert WebP to JPEG
  • Automatically compress big images

popup

Usage

Use the buttons in the reply box for (left to right):

  • Clear comment field
  • Paste clipboard into the comment field
  • Delete 4chan_pass cookie
  • Reply to every post on the page
  • Convert quotelinks into soyquotes (for example: >>123456 in the comment field will be replaced with the quoted content of that post without a link to it)
  • Convert quotelinks into filename quotes
  • Reply to posts with repeating digits in the post number
  • Spoof filename
  • Anonymize file hash
  • Rank IDs by their post count
  • Reply to 1-post-by-this-ID
  • Reply to /pol/ memeflag posts
  • Quote Know Your Meme filenames

replybox

Permissions:

  • Storage to save the settings between each use
  • Access to 4chan and 4channel

Install

Firefox

MS Edge

Chrome/Chromium/Brave

  • Download 4chan-mass-reply-unpacked.zip from the Releases section and sideload it.

Android

  • With Kiwi Browser (WebView), download 4chan-mass-reply-unpacked.zip from Releases section and install the extension via ( ⋮ ) -> Extensions.
  • With SmartCookieWeb Preview (GeckoView), go to about:config, set xpinstall.signatures.required to false, download 4chan_mass_reply.xpi from Releases section and sideload the extension via Advanced settings -> Sideload XPI.

How to build

$ npm install --save-dev
$ npm run build

The resulting extension will be in dist/.

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