CSV ↔ JSON Converter
CSV to JSON and back, both ways.
Runs entirely in your browser — nothing you enter is uploaded, logged, or tracked.
Turn CSV into a clean JSON array of objects (using the header row as keys), or convert JSON back into CSV — with proper handling of quoted fields that contain commas or line breaks.
Frequently asked questions
Does it handle quoted fields and commas inside values?
Yes — the parser follows the CSV quoting rules, so a value like "Smith, John" stays a single field, and embedded quotes and newlines round-trip correctly.
Is my data sent to a server?
No — parsing and conversion happen entirely in your browser, so even sensitive spreadsheets stay on your device.