Free utility

JSON ↔ CSV

Convert safely quoted CSV and JSON records in either direction.

Processing stays on this device. Your input is not uploaded, sent to an external service, or saved by Crow Tech.

Workbench

Inputs stay on this page. Use the explicit action to validate and produce a result.

JSON input must be an array of flat objects. Nested values and numeric literals that cannot be preserved are rejected; CSV values become strings when converted to JSON. CSV output preserves formula-leading cells, so review untrusted data before opening it in spreadsheet software.