JSON Formatter for Log Output — Structured Logging
Quick Answer: Paste a JSON log line to expand it into readable format. Structured logging libraries like Pino, Winston, and Bunyan output single-line JSON that is nearly impossible to read without formatting.
FAQ
Why are structured logs in JSON?
JSON logs are machine-parseable, making them easy to ingest into log aggregators like Datadog, Splunk, and ELK Stack. The trade-off is human readability.
Can I format multiple log lines at once?
Paste one JSON log line at a time for best results. If you have newline-delimited JSON (NDJSON), each line is a separate JSON object.