Debugging production NestJS logs is painful.
You end up scrolling through thousands of lines trying to:
- identify errors
- find slow APIs
- understand what failed and where
So I built a simple tool to fix this.
What it does
Paste or upload NestJS logs (default logger, Pino, or Winston). It:
- Extracts errors with file names and line numbers
- Highlights slow routes (p95/p99 latency)
- Calculates request rate (RPM) and error %
- Aggregates errors with counts and timestamps
- Generates a shareable link (7 days)
Example output
Try it
https://micro-tools.co/tools/dev/log-analyzer
No signup. No ads. Just paste logs and get insights.
Feedback
Would this be useful in your workflow?