How to use JSON to CSV
Drag in your file, or click to choose it from your device.
JSON to CSV runs as plain JavaScript in this page — instant, with no round trip. Nothing is uploaded to a server to do this.
Download the finished file to your device.
Local processing & privacy
VineFileLab is designed around client-side processing. Your browser reads the file you explicitly select, processes it locally and creates the result on your device. Internet access may still be used to load the page and its browser libraries, but the selected file does not need to be uploaded to our conversion server.
Frequently asked questions
Is my text or data uploaded to a server?
No. JSON to CSV runs in your browser using local JavaScript. Your entered text or data stays on this device for the processing step.
Can I process more than one file at once?
This particular tool processes one file at a time by design, since it needs settings specific to that file. Run it again for additional files.
Is there a file size limit?
The practical limit is your device's available memory rather than a limit we impose — very large files may be slower on older devices.
Do I need to create an account?
No. Every tool on this site works without signing up.