Redmine plugin to easily input CSS to customize Redmine appearance.
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Redmine Custom CSS plugin

Allows to input CSS directly from Redmine to customize Redmine appearance. Edit the CSS in the plugin's configuration page. Path to configuration is /settings/plugin/redmine_custom_css

Please note that there is nothing for now to prevent an admin injecting HTML in the page!


  • Allows to input CSS to customize Redmine's theme
  • Hey, that's all for now!


Redmine 2.x ~ 3.x stable

Tested on:

  • 3.4.x
  • 3.3.x
  • 3.0.3
  • 2.5.0
  • 2.4.2


  • Maybe implement file upload to add images.
  • Give an option to publish the CSS as a file and not inlined in the HTML.

Downloading and installing the plugin

Download the plugin using git. Open a terminal in your Redmine installation's "plugins" directory and type:

git clone

The installation is now finished and you will be able to use the plugin after you restart your Redmine instance.

No need to migrate the database!


After installing, navigate to plugin configuration (/settings/plugin/redmine_custom_css) and start inputing CSS.


Thank to CodeMirror for their very cool editor licensed under MIT license!


  • @martin-denizet : Coding
  • @onlyjob : Licensing expertise
  • @virtualmarc : Bugfix
  • @Daiben : Testing

License TL;DR

GPLv3+ Copyright (C) 2018 Martin DENIZET


redmine_custom_css - "redmine_custom_css" is Redmine plugin to add custom CSS editable through web interface Copyright (C) 2018 Martin DENIZET

This file is part of redmine_custom_css.

redmine_custom_css is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

redmine_custom_css is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with redmine_custom_css. If not, see