Log File Analyzer
Find errors, filter log levels and inspect repeated messages in pasted plain-text or JSON-line logs.
Ready. Try the example or paste your input.
Results
Run the tool to see results.
Processed output preview
Using Log File Analyzer
Find errors, filter log levels and inspect repeated messages in pasted plain-text or JSON-line logs.
- Paste log lines or open a local text file. Use the ready example to learn the workflow.
- Adjust the tool options, run the review and inspect the findings. Search the results and change the row view when needed.
- Download the processed output or complete JSON report. Keep a project file to reopen your inputs and settings later.
Example
Load the included example, then run the tool. Levels in plain text are heuristic. It does not monitor servers or diagnose incidents.
Questions & answers
What does this tool do?
Find errors, filter log levels and inspect repeated messages in pasted plain-text or JSON-line logs.
What are the limits of its results?
Levels in plain text are heuristic. It does not monitor servers or diagnose incidents.
Can I save or reopen my work?
Save project downloads inputs and options as JSON. Open project restores them; run the tool again for fresh results. Projects and reports may contain private source data, so store and share them carefully.
How much data can I use?
Each input supports up to one million characters and 2 MiB file uploads. Results support up to 20,000 rows; tables show 100 at a time. Large or complex inputs may need to be split.
Is input uploaded or executed?
Processing is local in your browser. This tool does not execute source scripts, follow links or contact external services. Site advertising and optional analytics are described in the privacy policy.
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Help improve this tool
Report a problem or suggest an improvement
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