CSV to JSON Converter
Convert CSV to a JSON array of objects instantly: the first row becomes the keys and every following row becomes a record. Quoted fields and embedded commas are handled correctly, and your data is processed entirely in your browser.
Handling real-world CSV correctly
CSV looks simple but has sharp edges: fields wrapped in quotes, commas inside values, doubled quotes as escapes, and Windows line endings. This converter parses all of that per the common RFC 4180 conventions instead of naively splitting on commas — which is exactly where hand-rolled conversions break.
European exports often use semicolons (because decimal commas occupy the comma), and spreadsheet copies are tab-separated; the auto-detection recognizes both. With the header row enabled you get an array of objects ready for an API or a script; without it, you get an array of arrays that preserves the raw grid. Either way the conversion happens locally — spreadsheets with customer data never leave your device.
How to use CSV to JSON Converter
- 1Paste your CSV (or the contents of a .csv file).
- 2Leave 'First row is the header' on to get an array of objects keyed by column name.
- 3The delimiter is auto-detected — override it if your file uses semicolons or tabs.
- 4Copy the JSON or download it as a file.
Frequently asked questions
Does it handle commas inside values?
Yes. Fields quoted per CSV conventions — including embedded commas, quotes and line breaks — are parsed correctly, not naively split.
My file uses semicolons — will it work?
Yes. The delimiter is auto-detected (comma, semicolon or tab), and you can override it manually.
Is my data uploaded?
No. Parsing and conversion run entirely in your browser, so exported customer or financial data stays on your device.