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JSONL to JSON Converter

Convert newline-delimited JSON to a JSON array or an array to JSONL. Preserve large numeric identifiers without rounding.

Processed on your device. No upload, account or daily limit.

Up to 5 MB, 10,000 JSON values and 64 nesting levels. Supports any JSON value per line. JSON input must be an array. Output is UTF-8 without a BOM; compressed files are not supported.

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