The Bitwarden mobile application is written in C# with Xamarin Android, Xamarin iOS, and Xamarin Forms.

Please refer to the Mobile section of the Contributing Documentation for build instructions, recommended tooling, code style tips, and lots of other great information to get you started.

Interested in contributing in a big way? Consider joining our team! We're hiring for many positions. Please take a look at our Careers page to see what opportunities are currently open as well as what it's like to work at Bitwarden.

Code contributions are welcome! Please commit any pull requests against the master branch. Learn more about how to contribute by reading the Contributing Guidelines. Check out the Contributing Documentation for how to get started with your first contribution.

Security audits and feedback are welcome. Please open an issue or email us privately if the report is sensitive in nature. You can read our security policy in the SECURITY.md file.

We recently migrated to using dotnet-format as code formatter. All previous branches will need to updated to avoid large merge conflicts using the following steps:

1. Check out your local Branch
2. Run git merge e0efcfbe45b2a27c73e9593bfd7a71fad2aa7a35
3. Resolve any merge conflicts, commit.
4. Run dotnet tool run dotnet-format
5. Commit
6. Run git merge -Xours 04539af2a66668b6e85476d5cf318c9150ec4357
7. Push