Because code doesn’t write itself. A vibrant open source community requires commitment

How CodeWeavers supports open source

CodeWeavers supports the concept of open-source software. We believe that the success of open source software will bring forth new, exciting products and services. We also believe that open source software provides viable models for corporate growth.

We believe it is important for any company that relies on Free Software to make sure their software community is vibrant and rich in its own right. To that end, we are the largest supporters of the Wine Project. We do all of our work on Wine directly against the upstream Wine project; we submit our work to Wine first. We also sponsor the annual Wine conference, and take great pains to make sure that we do everything we can to keep Wine a vibrant community.

At the same time, we have to eat. Many of our own customers make their livings selling proprietary software. CodeWeavers believes that there is a place in the world for both models

CrossOver, while composed primarily of an open-source core, also contains proprietary components that comprise some of our "value add." This allows us to differentiate ourselves against the free version of Wine.

View Projects We Support

Did you know?

When you purchase CrossOver, you are supporting open source as the majority of CrossOver development source code gets released back into the Wine project for everyone's benefit.

Projects we contribute to...


Wine is an open-source project that provides a compatibility layer used to run Windows applications on other operating systems like macOS and Linux.

Learn how we support the wine project


Proton is a tool for use with the Steam client which allows games which are exclusive to Windows to run on the Linux operating system. It uses Wine to facilitate this.

Learn more about the proton project

How you can get involved

Buy CrossOver

Buy purchasing CrossOver - you are supporting the Wine project as most of the code developed for CrossOver goes back into the Wine project.

Buy CrossOver

CodeWeavers BetterTesters:
Our cruelty-free beta testing program.

We’re always looking for experienced users to help us test CrossOver…

Join the BetterTesters

Contribute Code

Contribute code to open source projects to be used by the whole community for everyone’s benefit

Contribute to Wine

Download Source Code

Now Hiring

We’re always looking for Experienced Developers to join our staff!

View Job Openings

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