NDJSON Viewer & Formatter

Paste newline-delimited JSON and instantly validate records, inspect each line, filter by text, see parse errors, and export a clean formatted JSON array. Useful for logs, event streams, ETL payloads, API traces, and JSONL datasets.

JSONL / NDJSON parser Filter & inspect records Pretty JSON array export 100% client-side

Input

One JSON object per line. You can paste logs, event streams, export files, or JSONL datasets. Objects are recommended, but valid JSON values also work.

Valid records0
Invalid lines0
Unique top-level keys0
Filtered results0
Everything happens locally in your browser. No uploads, no server-side parsing, no surprise data leaks.

Output

Waiting for input No record selected
Parse some NDJSON to see the combined JSON array.
No errors yet.

Records

Click a record to inspect it
No parsed records yet.

Inspector

Select a record to inspect its formatted JSON here.
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