Error Log Analyzer

Paste any log file and instantly surface critical errors, warnings, and recommended fixes.

Paste log content

error: 2

warning: 2

critical: 1

error · line 2

2026-06-14 12:01:15 ERROR Connection refused to db:5432

💡 Application error — capture stack trace and reproduce the request.

warning · line 3

2026-06-14 12:01:16 WARN Deprecated API endpoint /v1/users

💡 Non-fatal — schedule remediation before the deprecation deadline.

critical · line 4

2026-06-14 12:02:01 FATAL Out of memory - heap exhausted

💡 Service-level failure — investigate immediately. Check memory limits and crash dumps.

error · line 5

2026-06-14 12:02:01 GET /api/orders 500 Internal Server Error

💡 Application error — capture stack trace and reproduce the request.

warning · line 6

2026-06-14 12:02:30 Slow query: 3.2s on orders.list

💡 Performance smell — profile DB and add indexes.

About the free Error Log Analyzer

Paste any log file and instantly surface critical errors, warnings, and recommended fixes. The ToolsEdits Error Log Analyzer runs online in your web browser, so there is nothing to download or install. It works on Windows, Mac, Linux, Android and iPhone, and it is completely free to use with no sign-up required.

Wherever possible, your data is processed directly on your own device, which keeps your files and information private and makes results appear instantly. The error log analyzer is part of our Text Tools collection, built for students, professionals and businesses who need fast, reliable results without paying for expensive software.

How to use the Error Log Analyzer

Enter your data or upload your file in the tool above.
Adjust the options and settings to match what you need.
Click the action button to get your result instantly.
Copy, download or share the result — then start again as many times as you like.