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Better Gantt Chart for Redmine
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Redmine Better Gantt Chart Plugin

The plugin imroves functionality of Redmine Gantt Chart.


  • Issues on Gantt chart connected with arrows. Handy!

  • Relations info added to issue tooltip.

  • Fixed rescheduling of related tasks if due date of dependent task changed to an earlier date.

  • Fixed sorting of issues on the chart as per

  • Added validation: start date of child issue cannot be less than start date of the parent, if parent depends on other tasks

  • Fast rescheduling of related issues. Now you can have hundreds of related issues with many levels of hierarchy, and expect they'll be rescheduled just almost as fast as if you were in MS Project. And it will not cause 'stack level too deep' error (not kidding)!


Tested with Redmine versions: 1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.2.0.stable, 1.3.0.stable

Installation and Setup

  1. Go to your #{RAILS_ROOT}/vendor/plugins directory

  2. Run 'git clone git://'. Or if you don't have git, click 'Download' button on this page, save and unpack archive in plugins directory, and rename extracted folder to 'redmine_better_gantt_chart'

  3. Restart Redmine

You should now see the plugin in Administration -> Plugins. The plugin does not require any database migrations.

Connection arrows are rendered in SVG via Raphael.js library. This should work in any modern or not so modern browser, including IE6.


  1. Open an existing issue in Redmine

  2. Click Add in Related Issues section, select type of relation 'Follows' or 'Precedes' and enter # of the related issue.

  3. Save changes.

  4. Go to Gantt tab.

Problems and Limitations

  • Currently only 'follows' and 'precedes' relations are used to calculate schedule of dependend issues. Other relation types are rendered on the chart, but they do not change schedule of related issues.

  • Only 'finish-to-start' dependency type is available.

  • One issue can precede many issues but, can be preceeded with only one issue.

Helping out

If you notice any problems, please report them to the GitHub issue tracker here. Feel free to contact me via GitHub or Twitter or whatever with any other questions or feature requests. To submit changes fork the project and send a pull request.


Thanks to Jeremy Subtil (BigMadWolf) for contributing a patch for displaying connections between cross-project related issues.


Better Gantt Chart is released under MIT license.

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