JSON Array ⇄ JSONL Converter
Convert a standard JSON array into JSONL/NDJSON (one object per line) or back again, in either direction.
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About this tool
JSON Lines (NDJSON) stores one complete JSON value per line instead of wrapping everything in a single array — handy for log files and streaming data. This tool converts a standard JSON array into that line-by-line format, or parses JSONL back into a proper array. When converting JSONL → Array, each line is parsed independently, so a single malformed line is reported by its line number instead of breaking the whole conversion.