Convert CSV to JSON
Paste CSV or drop a file to get a JSON array. Numbers and true/false values are detected automatically.
- Files never uploaded
- Free, no sign-up
- Works on any device
- Works offline
How to convert CSV to JSON
Add CSV
Paste CSV or drop a .csv or .tsv file.
Choose options
The delimiter is detected automatically; you can change it.
Copy or download
Copy the JSON or download a .json file.
About CSV to JSON
Header row required
The first row is used for the JSON keys. Make sure each column has a name.
Your files never leave your device
Most online PDF sites upload your documents to their servers. DocuVault doesn’t. Everything happens inside your browser, so there is nothing for anyone to see, store or leak.
Check it yourself
Use a tool once, then turn off your Wi-Fi or switch to airplane mode and use it again — it still works. Developers can watch the Network tab: no file is ever sent.
Step 1
You choose a file
Your browser opens it directly from your device — like opening it in an app.
Step 2
Your device does the work
The processing code runs inside this browser tab. No server ever receives your file.
Step 3
You save the result
The new file goes straight to your downloads. Close the tab and everything is gone.
Frequently asked questions
Does it handle commas inside quoted cells?
Yes. Quoted values, line breaks inside cells and escaped quotes are all handled correctly.
Can I keep everything as text?
Yes. Turn off “Detect numbers and true/false” to keep every value as a string.