This program provides an intuitive way to visualize and analyze Java heap size data using Garbage Collection (GC) log files. By uploading your Java GC log files, you can gain valuable insights into your application's memory behavior and performance.

Heap out of memory example

User reported sudden degradation of performance. After a few minutes the application was no longer useable.

After uploading the Java GC files to gcview.com, the exact time at which the problems started could be determined. This made it possible to identify the cause of the problems in other log files.

Memory leak example

This diagram shows a typical memory leak: you can see that more and more memory is used up over time. Full garbage collections are performed more and more frequently until the application is finally no longer usable.

Privacy

gcview.com is a free service. No registration is required. The GC log files that you upload are used only to create the diagram, and are not disclosed to any other party. You can delete the uploaded data at any time by clicking the "Delete" button.

See the Privacy page for all the details.

Note

Bookmark the URL to review the diagram at a later time. However, this is not a permanent link. We will delete the link and all data after some time so that disk space does not run out. You can recreate the same diagram by uploading the same log files again. Also, anyone who has the URL can modify your diagram by deleting or uploading log files, so if you want to share the results, download the diagram and share that instead.