CSV to JSON Converter
Paste or upload CSV and get clean JSON instantly — quotes, commas, and line breaks handled correctly. Nothing is uploaded.
100% Private: Your CSV is parsed entirely in your browser — nothing is uploaded to any server.
CSV to JSON Converter — Free & Online
CSV to JSON is a free, in-browser converter that turns spreadsheet data into clean JSON without uploading your file. Paste CSV or drop in a .csv file and each row becomes a JSON object keyed by the header — with quotes, embedded commas, and line breaks handled per RFC 4180. Auto-detect the delimiter, optionally convert numbers and booleans to real JSON types, then copy or download the result. Everything runs locally on your device.
How to Convert CSV to JSON
Add CSV
Paste your CSV or upload a .csv file.
Set Options
Delimiter, header row, and type conversion.
Get JSON
The JSON updates live as you type.
Copy / Download
Copy to clipboard or save a .json file.
Why Use TryDocsy's CSV to JSON?
No Upload
Parsing happens in your browser. Your data never leaves your device.
Correct Quoting
RFC 4180: commas, newlines, and escaped quotes inside fields are preserved.
Auto Delimiter
Detects comma, semicolon, tab, and pipe — handles CSV and TSV.
Real JSON Types
Optionally convert numbers, booleans, and empty cells to null.
Objects or Arrays
Header row → array of objects, or raw array of arrays.
Instant & Free
Live conversion, copy or download, no account or watermark.
Frequently Asked Questions
How do I convert CSV to JSON?
Paste your CSV (or upload a .csv file) into TryDocsy's CSV to JSON converter. It instantly produces a JSON array — by default each row becomes an object keyed by the header row. Then copy the JSON or download it as a .json file.
Does it handle quotes, commas, and line breaks inside fields?
Yes. The parser follows RFC 4180, so quoted fields containing commas, newlines, or escaped double quotes ("") are preserved correctly instead of breaking the columns.
Can it detect the delimiter automatically?
Yes. It auto-detects commas, semicolons, tabs, and pipes, or you can pick the delimiter manually. This makes it work with European CSVs (semicolons) and TSV files too.
Can I convert numbers and booleans to real JSON types?
Yes. Turn on “Convert numbers & booleans” and clean numeric values become numbers, true/false become booleans, and empty cells become null — while things like phone numbers and leading-zero codes stay as strings.
Is my data uploaded to a server?
No. All parsing happens locally in your browser using JavaScript. Your CSV never leaves your device, which makes this safe for confidential spreadsheets.
What output format do I get — array of objects or arrays?
By default you get an array of objects using the header row as keys. Turn off “First row is header” to get an array of arrays instead. You can also pretty-print or minify the JSON.