Structured log viewer 📋
NDJSON and log lines with embedded JSON — filter, search, and expand. Free and instant in your browser.
Up to 10,000 lines; processing debounced. All work stays in your browser.
Paste logs to preview structured JSON per line.
About this viewer
Use it for quick inspection of newline-delimited JSON, application logs that append a JSON payload, or mixed files from servers and agents. Level detection is heuristic (keywords, common JSON fields like level and severity).
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