CSV to JSON
Convert a CSV table to JSON.
Your files never leave your device No waiting, results in seconds Free, no account needed
or drag and drop here
🔒 Your files never leave your device
How to use
Choose or drop your file
Pick options and start
Download the result
About CSV to JSON
CSV to JSON converts table data into a JSON array of objects using the header row as keys — ready for APIs, apps and databases.
- 100% free
- Files stay on your device
- No sign-up
- No watermark
- Works on mobile
Frequently asked questions
Is the first row used as keys?
Yes, the header row becomes the property names.
Which separators work?
Comma and semicolon are detected automatically.
Is CSV to JSON free?
Yes. CSV to JSON is completely free, needs no account and never adds a watermark to your files.
Are my files safe?
Yes. Your file is processed inside your browser on your own device; it is never uploaded or stored.
Can I use it on my phone?
Yes. CSV to JSON works in every modern browser on iPhone and Android, no app needed.