Convert CSV data into a JSON array of objects. Handles quoted fields, custom delimiters, and number casting.
Developers and analysts turning spreadsheet exports into API-ready JSON.
Paste your CSV
Paste the CSV data with the first row as the column headers.
Set options
Choose the delimiter (comma, semicolon, or tab) and whether numeric strings should become real numbers.
Copy or download
Copy the resulting JSON array of objects, or download it as a .json file.
Spreadsheets and database exports hand you CSV, but apps, APIs, and JavaScript almost always want JSON. The conversion looks trivial until you hit real data: a field like "Smith, John" or an address with a comma inside quotes breaks any naive split-on-comma approach, and line breaks inside quoted fields wreck it entirely. Doing it by hand is tedious and error-prone exactly where the data is messiest. This converter parses CSV properly — honouring double-quoted fields that contain commas, line breaks, and escaped quotes ("") — and turns each row into a JSON object keyed by the header row. You can choose the delimiter (comma, semicolon, or tab) and have numeric strings converted into real numbers, then copy the JSON array or download it as a file. It runs entirely in your browser, so your data — which might be customer records or exports — is never uploaded.
Seeding databases
Turn a spreadsheet export into JSON to import into an app, database, or seed script.
API payloads
Convert tabular data into a JSON array of objects ready to send in a request.
Frontend data
Reshape spreadsheet data into JSON you can drop straight into JavaScript.
Config & fixtures
Convert a list maintained in a spreadsheet into JSON for tests or configuration.
Data migration
Move tabular exports from one system into another that expects JSON.
Yes. Fields wrapped in double quotes can contain commas, line breaks, and escaped quotes ("") — they are parsed correctly, not split naively.
Yes. Pick comma, semicolon, or tab from the delimiter option — useful for European CSVs and TSV files.
You can opt to turn numeric strings into real numbers; otherwise values are kept as strings to avoid surprises.
The first row is treated as headers, and each becomes a key in the objects generated for the remaining rows.
Rows are mapped against the headers; keep columns consistent for clean output, as ragged rows can produce missing or unexpected keys.
No. Parsing happens entirely in your browser, so the data never leaves your device.
No fixed limit, though very large CSVs take longer to parse on your device.
Yes — convert any number of CSV files to JSON for free, with no account.