⚪️ An extension for web browsers that converts AsciiDoc files to HTML using Asciidoctor.js.
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Latest commit c27ed2c Oct 18, 2018


Asciidoctor Browser Extension

This project uses Asciidoctor.js to preview AsciiDoc as HTML inside Chrome (or Chromium), Firefox and Opera!

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Chrome, Chromium or Opera

  1. Install the extension from the Chrome Web Store or the Opera Add-ons website

  2. Check Allow access to file URLs in chrome://extensions

  3. Open local or remote .ad, .adoc, .asc, .asciidoc files in your browser

  4. Enjoy!


  1. Install the extension from the Firefox Add-ons website

  2. Open local or remote .ad, .adoc, .asc, .asciidoc files in Firefox

  3. Enjoy!

On Firefox, pages viewed directly from GitHub may not render properly. This is result of a Firefox bug carrying over the restrictive content security policies (CSP) that GitHub sends to content inserted by the WebExtension. Please note that this issue can also occured on other websites with restictive CSP.


Loading your local copy of the extension on Chrome (or Chromium), Firefox or Opera is super easy!

Chrome, Chromium or Opera

  1. Check Developer mode in chrome://extensions

  2. Click Load unpacked extension…​ and select the extension app directory

  3. That’s all

To see your changes, click the Reload (Ctrl+R) link in chrome://extensions. If you want to create a Pack extension just make a zip file of the extension app directory.


  1. Click on the Load Temporary Add-on in about:debugging

  2. Select the manifest file in the app directory

  3. That’s all

To see your changes, click the Reload link in about:debugging.


The extension can be configured via an options page.

To open the options page, in Chrome or Opera, right-click the extension icon and choose Options on the menu. You can also go to chrome://extensions and click the Options link.

In Firefox, go to about:addons and click the More link or the Preferences button.

The options page let you add custom Asciidoctor attributes or change the theme of the AsciiDoc HTML output.


See the hacking file.


See the changelog file.

Copyright © 2013-2017 Guillaume Grossetie. Free use of this software is granted under the terms of the MIT License.

See the LICENSE file for details.