Contact
UDB is run in the open on GitHub. Every question, bug and device request goes there, so the answer helps the next person too.
Something broke
Say what you did, what you expected and what UDB showed. Include your browser and device.
Report a bugSupport my device
Open your device in UDB, go to Interfaces & diagnostics and choose Copy device report. It holds descriptor details only, never what you type or click. Paste it into the issue.
Request a deviceHelp verify
Own a device marked unverified? The contributor guide says how to check a setting on real hardware.
Contributor guideA security problem
Please don't post it publicly. Use Report a vulnerability on the repository's Security tab.
Security tab
Already reported? Search the open issues.