Get a reliable result in three steps
- 1
Paste the complete source content into the formatting editor.
- 2
Choose only the formatting options relevant to this syntax.
- 3
Format the content, review the result, then copy or download it.
What this tool does
Error Log Formatter gives you a fast, focused way to beautify JSON Lines and group timestamped structured log entries into a readable diagnostic report. Everything runs locally in this tab.
The result is produced only after the input is checked. If the value cannot be processed, the workspace reports a specific error instead of guessing.
Features
- Local browser processing
- Input validation before transformation
- Syntax-aware editable output
- Character, line, and byte measurements
Input and output
- Input
- text
- Output
- text
- Processing
- Local browser
Example
{"time":"2026-08-16T09:00:00Z","level":"error","message":"Request failed","id":"abc"}
{"time":"2026-08-16T09:00:01Z","level":"warn","message":"Retry scheduled"}Limitations
- Review important output before using it in production.
- Very large inputs remain subject to browser memory limits.
- JSON log lines are parsed independently; mixed plain-text lines are preserved rather than discarded.
- The tool formats text only and does not execute embedded values or fetch referenced resources.