GUI

To view logs, click on the Console tab. Optionally, change filter from Information to Debug for more detailed logs.

To export logs, click Help -> Export diagnostics... in the top menu bar.

Sometimes OpenTabletDriver crashes hard. This is usually caused by a bug in OpenTabletDriver. Due to the crash, it will be impossible to retrieve the logs from GUI. In this case, you can find a partial log in the following locations:

OS	Location
Windows	%appdata%\OpenTabletDriver\daemon.log
Linux	~/.local/share/OpenTabletDriver/daemon.log
macOS	~/Library/Application Support/OpenTabletDriver/daemon.log

Daemon

The output from daemon is the log.

On Linux when running daemon via systemd service, the log for daemon is recorded by systemd. To view the log, run journalctl --user-unit opentabletdriver.service.