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NDJSON / JSONL to JSON Converter

Convert newline-delimited JSON log streams into standard JSON arrays and back.

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How to Use NDJSON / JSONL to JSON Converter

  1. Paste your NDJSON/JSONL log lines or standard JSON array.
  2. Click the conversion direction button.
  3. Copy or download the result.

Frequently Asked Questions

What is the difference between NDJSON and JSON?

NDJSON contains one valid JSON object per line without surrounding array brackets, making it ideal for streaming large log records.

Sources & References

Primary references: RFC 8259: The JavaScript Object Notation (JSON) Data Interchange Format.

Review policy: references and behavior notes are checked whenever the tool implementation changes.