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NDJSON to JSON Array

Convert newline-delimited JSON streams to JSON arrays for analysis. Turn 10,000 log lines into queryable data — local conversion, free, no signup.

100% Local Browser Native

How to Use the NDJSON to JSON Array

1. Paste NDJSON

One object per line, logs or exports.

2. Convert to array

Valid lines wrap; bad ones report.

3. Copy JSON array

Query with jq or import anywhere.

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Frequently Asked Questions

NDJSON vs JSON array?

NDJSON streams one object per line (logs, exports); arrays wrap everything in brackets. Convert stream→array for jq and browser tools.

How large a stream?

Tens of thousands of lines convert locally in seconds. Million-line dumps split by time window first.

Malformed lines?

Bad lines report with line numbers while valid ones convert — fix or drop the flagged rows, don't lose the batch.

Do stream lines leave the browser?

No — conversion runs locally in your browser. Data never leaves your device.

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Last updated October 2026