Processing boundary
Input is processed only in the active browser tab's memory and is not sent to a ByteQuant server.
90
Data & developer
JSON Lines Converter
Validates JSON Lines (NDJSON) record by record and converts a JSON array to NDJSON or NDJSON back to one JSON array. Invalid records are reported by line number and nothing is uploaded.
✓ Free✓ No account✓ In-browser
Persistent storage
Input and output are not stored. The optional usage counter keeps only tool identity and count, never content.
Verification
Output comes from disclosed rules or browser APIs and needs independent review before high-impact use.
A result in three steps
- 01
Paste a JSON array or NDJSON text.
- 02
Run auto-detection and review any line warning.
- 03
Copy the validated output or pass it to the next tool.
When is this tool useful?
- ✓ Preparing log exports
- ✓ Validating datasets record by record
- ✓ Converting JSON API samples to NDJSON
Important limitation
Automated output is a preliminary assessment. Do not use it alone for legal, financial, medical, or security-critical decisions.
LEARN THE WORKFLOW
Guides for this tool
An API Delivery Review with NDJSON, OpenAPI, and SemVer
Validate streaming data, inventory endpoints, and verify release precedence before delivery with explainable steps.
Read guide →ABOUT THIS TOOL
Frequently asked questions
Does this tool send input to a server?+
No. Processing runs in this browser tab. Data leaves the page only when you choose to copy or download the result.
Is the result definitive?+
The tool produces consistent output from disclosed rules and browser APIs, but context, data quality, and method limitations can affect it. Verify high-impact decisions.
Is input saved?+
No. Tool input is not persisted. With consent, only tool identity and usage count may be kept on this device for personal shortcuts.