Yes, completely free with no signup required.

Does my data leave my device?

No. All parsing happens locally in your browser — nothing is sent to a server.

Does it work on mobile?

Yes. The tool is mobile-first and works on any modern browser.

Nginx・Apache・syslog・JSONのログ行をタイムスタンプ・レベル・メッセージの列に構造化します。

Format

Log lines

Select the log format or leave it on Auto-detect.
Paste your log lines into the text area.
Click "Parse logs" to see a structured table with timestamp, level, and message columns.

Is this tool free?: Yes, completely free with no signup required.
Does my data leave my device?: No. All parsing happens locally in your browser — nothing is sent to a server.
Does it work on mobile?: Yes. The tool is mobile-first and works on any modern browser.

Last updated: 2026-05-20 By jarvisbox