The Bitwarden mobile application is written in C# using .NET MAUI.

Please refer to the Legacy 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 main 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.