Convert between CSV and JSON
CSV is the universal format for spreadsheets and exports; JSON is what APIs and apps prefer. Moving between them by hand is tedious and error-prone, especially when fields contain commas or quotes. This tool does it reliably in both directions.
How to use it
- Choose the direction — CSV → JSON or JSON → CSV.
- Paste your data. The first CSV row is treated as the header.
- Click Convert and copy the output.
Frequently asked questions
Does it handle quoted fields and commas inside values? Yes — the parser understands double-quoted fields, escaped quotes and commas or newlines inside quotes.
Can it convert JSON back to CSV? Yes — switch the direction to JSON → CSV. The JSON must be an array of objects; columns are taken from the object keys.
Is my data uploaded? No. Conversion runs entirely in your browser, so your data never leaves your device.