OPNsense Developer Invitation

We invite you to join us in making the best and most widely used open source firewall!

You are invited!

The OPNsense® project invites developers to become an OPNsense Developer: “For your own purpose or even better to join us in creating the best HardenedBSD based open source firewall available!” The development workflow & build process has been redesigned to make it more straightforward and easy for developers to build OPNsense.

Being able to get the sources and build it yourself is one of the key factors of open source software. One reason that for starting the OPNsense project is that the team believes sources and build tools should be freely available and as easy to use as possible.

More information about how to use the tools and how to contribute see the OPNsense page on (GitHub).


Contributing to the ongoing development of OPNsense can be done by:

  • Testing a development version and
  • Report issues and/or
  • Help fixing issues as well as by
  • Contributing new functionality
  • Share your code with the project by manner of a pull request.

Development Manual

See our online development manual for:

Bug reporting

Bugs and issues are tracked using GitHub’s issue tracking system see: https://github.com/opnsense/core/issues


The roadmap aims to provide an insight of the direction the project is moving forward. By no means this is meant to be a detailed list.