Thread Dump Analyzer

Analyze Java thread dumps to identify deadlocks, thread states, and performance issues

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About This Tool

This Thread Dump Analyzer tool helps developers and system administrators analyze Java thread dumps to identify performance bottlenecks, deadlocks, and thread state issues. Simply upload your thread dump file or paste the content directly, and the tool will parse the data to provide insights into thread counts by state, CPU usage patterns, deadlock detection, and thread grouping by stack trace. The tool supports standard jstack output format and helps you quickly understand what's happening in your JVM application.

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How to Use

Upload your thread dump file (.txt, .log, or .dump) or paste the content directly into the text area
Select analysis options (deadlock detection, thread grouping, CPU analysis)
Click 'Analyze Thread Dump' to process the data
View the detailed analysis results including thread states, deadlock detection, and performance insights
Use the export options to save the analysis report

Frequently Asked Questions

Find Quick Answers

What thread dump formats does this tool support?

The tool supports standard jstack output format, which is the most common format for Java thread dumps. It can parse thread information including thread IDs, thread states, stack traces, and lock information.

Can I analyze multiple thread dumps at once?

Currently, the tool analyzes one thread dump at a time. For comparing multiple dumps, you can analyze them separately and compare the results manually.

Does this tool store my thread dump data?

No, all processing happens client-side in your browser. Your thread dump data is never sent to any server or stored anywhere.

What thread states does the analyzer detect?

The tool detects all standard Java thread states: RUNNABLE, BLOCKED, WAITING, TIMED_WAITING, and TERMINATED. It provides counts and percentages for each state.

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