What log formats are supported?

JSON logs, structured logs (like Pino, Winston), and plain text logs with common patterns are supported.

Can I filter by log level?

Yes, filter to show only errors, warnings, or specific severity levels to focus on relevant entries.

Does it handle nested JSON?

Yes, nested JSON objects within logs are formatted and expandable for easy inspection.

Is this tool helpful?

Log Prettifier

Format and colorize server logs

Filter Level:

Raw Logs

Prettified Output (0)

No logs to display

About Log Prettifier

What is Log Prettifier?

Make logs readable by formatting and colorizing output. Parse JSON logs, highlight errors and warnings, and filter log levels. Perfect for debugging applications and analyzing server logs.

Features & Benefits

Parse and format JSON logs
Colorize by log level
Highlight errors and warnings
Filter by severity
Expand nested JSON objects
Search within logs

Frequently Asked Questions

What log formats are supported?: JSON logs, structured logs (like Pino, Winston), and plain text logs with common patterns are supported.
Can I filter by log level?: Yes, filter to show only errors, warnings, or specific severity levels to focus on relevant entries.
Does it handle nested JSON?: Yes, nested JSON objects within logs are formatted and expandable for easy inspection.

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How-To Guides

How to Read JSON Logs

Guides

Prettify Logs Online Free Log Viewer in Your Browser

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This tool runs entirely in your browser. Your files and data never leave your device and are not uploaded to any server.