jsonl351 B
JSON-Lines Application Log
A structured application log with one JSON object per line at info/debug/warn/error levels — for testing log ingestion.
Preview — first 5 linesjsonl
{"ts":"2026-01-01T09:00:01Z","level":"info","msg":"server started","port":8080}
{"ts":"2026-01-01T09:00:02Z","level":"debug","msg":"request","method":"GET","path":"/"}
{"ts":"2026-01-01T09:00:03Z","level":"warn","msg":"rate limit near","ip":"203.0.113.7"}
{"ts":"2026-01-01T09:00:04Z","level":"error","msg":"not found","path":"/missing","status":404}
Specifications
What is a .jsonl file?
JSONL (JSON Lines) is a text format where each line is a complete, independent JSON value, allowing records to be streamed and appended without parsing the whole file. It is not itself a JSON array and each line must stand alone. It is common in logging, machine learning datasets, and data pipelines.
How to use this file
Use an example JSONL to test line-by-line streaming parsers, append-and-resume ingestion, and batch pipelines that process one record per line.
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