CSV ↔ JSON Converter

Convert CSV to JSON and JSON to CSV in both directions.

CSV → JSONJSON → CSV

Drag & drop files here, or click to select

Your file never leaves your device · No signup · No daily limit

Up to 100 MB per file

CSV Input

0 B

How it works

CSV is flat; deeply nested JSON can't map cleanly to columns, so complex structures are best kept as JSON.
It handles quoted fields, embedded commas, and newlines, but wildly malformed CSV may need cleanup first.

Yes, properly quoted CSV fields with embedded commas, quotes, and newlines are parsed correctly, not split naively.

CSV is a flat table, so nested objects don't have a clean column representation. Flat arrays of objects convert cleanly both ways.

No. Conversion runs entirely in your browser, which matters for private datasets.