Convert · in-browser
CSV to JSON Converter
Convert comma-separated values into structured JSON. Ideal for transforming spreadsheet exports into API-ready data.
A CSV header row becomes JSON object keys, and each row becomes an object.
All conversion happens locally in your browser using modern canvas APIs — files never leave your device.
Key facts
CSVTabular text format with values separated by commas
JSONHierarchical key-value format native to JavaScript
Typical useSpreadsheet exports → web APIs or configuration
Nested dataJSON supports nesting, CSV does not