convertix
EN

Install Convertix

Use it like an app, no store and no account. Your files still never leave your device.

iPhone and iPad

  1. Open this page in Safari.
  2. Tap Share, the square with an arrow pointing up.
  3. Choose “Add to Home Screen”.

Android

  1. Tap your browser's ⋮ menu.
  2. Choose “Install app” or “Add to Home screen”.

Computer

  1. In Chrome or Edge, click the install icon in the address bar.
  2. In Safari on Mac, choose File and then “Add to Dock”.
Home / CSV to JSON

Convert CSV to JSON

Turn your CSV data into JSON in one click. The file is processed in your browser and isn't uploaded to any server.

No sign-up and nothing uploaded to a server: everything happens in your browser. See for yourself.

How to use: CSV to JSON

  1. Select your CSV file or paste the content.
  2. Check the preview.
  3. Download the JSON file or copy the result.

Frequently asked questions

Are my files uploaded to a server?

No. Everything is processed inside your browser, and your files never leave your device.

What file size is supported?

There's no fixed limit. Sheets with hundreds of thousands of rows can be slow or use a lot of memory; use a computer for those.

Are formulas and formatting preserved?

The values are converted. Formulas are saved with their result, and visual formatting is lost.

About this tool

Ideal for turning a table exported from Excel or from a system into a format any web application understands. The first row is used as the field names.

Because everything happens on your device, you can convert customer lists, payrolls or inventories without exposing them on the internet.

If accented characters look wrong, save your original file with UTF-8 encoding.

Other tools