JSONL Formatter

JSONL / NDJSON Formatter and Validator

JSON Lines (JSONL) and NDJSON (Newline Delimited JSON) are formats where each line is a valid JSON value. They are common in log files, data pipelines, and streaming APIs. This tool validates each line independently, pretty-prints records for readability, minifies for compact storage, or extracts a specific key across all records (like a simple jq).