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JSONL to JSON Array
JSON Lines (one JSON value per line, blank lines ignored) → a pretty JSON array in the same order. A bad line is reported with its line number.
A little guidance. A better result.
How to use JSONL to JSON Array
One JSON value per line → a pretty array in the same order; bad lines reported by number.
Prepare your input
Paste one JSON value per line.
Use the workspace
Review the combined array or a line-numbered parse error.
Check your result
Check array order and item count before downloading.
Know the limits
Each nonempty line must be valid JSON; pretty-printed multiline records are not JSONL.
Where does my input go?
This browser tool processes your input on your device. Optional analytics is a separate choice; it is not needed to use the tool. Keep your original until you have checked the result.
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