How to use this tool
- 1Capture the log with 'adb logcat' or grab a bug report.
- 2Paste the whole content into the text box.
- 3Lines are colored by severity and errors are counted.
- 4Enable 'Errors only' to focus on critical problems.
About this test
Logcat is Android's event log. It's huge and hard to read, but it holds the cause of freezes and app crashes. This tool colors lines by severity and highlights fatal errors and crashes in red.
Ideal for technicians and power users to quickly find the 'FATAL EXCEPTION' line or the app that crashed. Everything is processed in the browser, no log ever leaves your machine.
Privacy: this tool runs entirely in your browser. No image, audio or device data is recorded or sent to any server.
Frequently asked questions
How do I get my phone's logcat?
With USB debugging enabled and the phone connected, run 'adb logcat' on your computer. You can also paste chunks of bug reports.
What does FATAL EXCEPTION mean?
A serious error that made an app close on its own (crash). The lines right below usually name the cause and component.