CSV to JSON converter
Turn a CSV into a JSON array, with the header row as keys.
Drop .csv files here, or choose files
Add as many files as you like
Choose filesConverted on your device — files are never uploaded
Why convert
Why convert CSV to JSON?
JSON is what code, APIs and no-code tools expect. Each row becomes an object keyed by your column names.
- Nothing is uploaded — 100% private
- Batch convert many files at once
- Free, no sign-up, no watermark
How to
How to convert CSV to JSON
- 1Add your filesDrop your .csv files on the page or click “Choose files”. You can add many at once.
- 2It converts instantlyEach file is converted by your browser, on your device. Nothing is uploaded.
- 3DownloadSave files one by one, or everything together as a ZIP.
Frequently asked questions
Everything happens in your browser, so most answers come down to: it's private, free and instant.
Are my files uploaded?
No. The conversion runs inside your browser, on your device. Your files are never sent to a server, so it's safe for private photos and documents.
Is it free? Are there limits?
It's completely free, with no sign-up and no watermark. Convert as many files as you like — the only limit is your device's memory.
More free tools
Excel to CSV converterExport every sheet of an Excel file as a clean CSV.CSV to Excel converterTurn CSV exports into proper Excel workbooks in one click.JSON to CSV converterTurn a JSON array of objects into a spreadsheet-ready CSV.HEIC to JPG converterTurn iPhone photos into JPGs that open everywhere — many at once, right in your browser.HEIC to PNG converterConvert iPhone HEIC photos to lossless PNG — no quality loss, no upload.WEBP to JPG converterSave web images as JPG files that every app, printer and form accepts.