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Log File Analyzer

Upload any .log file and instantly see error counts, warning counts, total line count, and the top 5 most repeated error messages. Useful for quickly triaging application and server logs.

🔒 Processing happens in your browser — files are never uploadedFree · No sign-up required

How to Use

  1. 1Upload a .log file (up to 50 MB)
  2. 2The tool automatically scans for ERROR, CRITICAL, and WARNING lines
  3. 3Review the summary and top repeated errors
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Need more power?

Upgrade to Pro for unlimited tasks, larger files, no watermarks.

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Why use ShowPro's Log File Analyzer?

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100% Private
Files never leave your browser. Zero server uploads.
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Instant Results
Processing happens locally — no waiting for uploads.
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Completely Free
No account needed. Use 5 times per day, always free.

Frequently Asked Questions

What log formats are supported?

Any plain-text .log file. The tool detects lines containing ERROR, CRITICAL, or WARNING keywords regardless of format.

Is my log file sent to a server?

No. All analysis runs entirely in your browser.