ExcelTool.io

Excel to JSONL Converter

Turn spreadsheet rows into JSON Lines (NDJSON) - one object per line, ready for data pipelines, jq, and ML training sets.

Drop your files here or click to upload

Supports .xlsx, .xls, .xlsm, .xlsb · up to 50MB

How to Convert Excel to JSON Lines

  1. Upload your workbook - The first row should contain your column names.
  2. Convert locally - Each data row becomes one JSON object per line.
  3. Download the .jsonl file - Feed it to your pipeline, jq, or training job.

Frequently Asked Questions

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