🧪 Log Formatter offline
Free offline log formatter. Parse and format logs into readable tables in your browser.
Log Input
About Log Formatter
Log Formatter parses unstructured log data and displays it in a clean, organized table format. It automatically detects log levels, timestamps, and messages from various log formats including JSON logs, Apache-style logs, and custom formats.
Features
- ✓Parse multiple log formats (JSON, Apache, etc.)
- ✓Auto-detect timestamps and log levels
- ✓Filter by log level (DEBUG, INFO, WARN, ERROR)
- ✓Color-coded by severity
- ✓Handle multi-line logs
- ✓Works with large log files
How to Use
- 1.Paste your logs into the input field
- 2.Logs are automatically parsed and formatted
- 3.Use the filter dropdown to show specific levels
- 4.Click "Load Example Logs" to see it in action
How to Use
Paste your log output and the formatter auto-detects timestamps, levels, and messages. I use the level filter to focus on errors while keeping the raw logs visible.
- Paste logs into the input box.
- Let the parser detect the format.
- Filter by ERROR, WARN, INFO, or DEBUG.
- Scan the formatted entries for patterns.
Use Cases
Log formatting helps with:
- Production debugging without scrolling raw logs.
- Performance analysis by spotting latency spikes.
- Security review of auth attempts or errors.
- DevOps troubleshooting for deployments and pipelines.
Tips & Best Practices
- Include timestamps to trace sequences.
- Use structured JSON when possible.
- Filter by level to reduce noise.
- Check for bursts of similar errors.
Comparison with online tools
Online log analyzers require uploading sensitive logs. TurboUtil processes everything locally for privacy.
Online analyzers
- Upload production logs
- Potential logging or retention
- Require internet access
- Less privacy control
TurboUtil
- Client-side parsing
- No uploads or tracking
- Works offline after load
- Instant filtering
FAQ
What log formats are supported?
JSON logs, bracketed formats, and space-separated logs are detected automatically.
Can I filter by level?
Yes. Use the dropdown to show a specific severity.
Is my data uploaded?
No. Everything runs locally in the browser.
Can I handle large logs?
It works for large inputs, but extremely large files may slow the browser.