CSV to JSON Converter
Convert CSV to JSON instantly in your browser. Private by default — no files are uploaded.
Drag & drop CSV files here or click to browse
How to convert CSV to JSON
- Export CSV from Excel, Sheets, or your database
- Drop the file — PapaParse reads headers as keys
- Download pretty-printed JSON for APIs or apps
Why convert CSV to JSON?
JSON is the lingua franca of web APIs and JavaScript apps. Turning spreadsheet exports into JSON lets you feed data into frontend prototypes, mock servers, and configuration files without manual copy-paste.
Is this converter safe?
Yes. CSV contents never leave your machine — suitable for HR, finance, and customer data.
CSV vs JSON — quick comparison
| Feature | CSV | JSON |
|---|---|---|
| Schema | Implicit (header row) | Explicit keys |
| Nesting | Not native | Native |
| Types | All strings unless typed | Numbers, booleans, null |
| Delimiter issues | Commas in cells | Escaped in strings |
| Best for | Spreadsheets | APIs & code |
Frequently asked questions
Does the first row become JSON keys?
Yes. We treat row 1 as column headers. Each following row becomes one JSON object.
What about semicolon-separated CSV?
Use comma-separated UTF-8 CSV for best results. European Excel exports may need re-export with comma delimiters.
Will numbers stay numeric in JSON?
PapaParse dynamic typing converts obvious numbers and booleans when possible; otherwise values remain strings.