DevTools
Language

JSON to CSV

DevTools JSON to CSV converts JSON arrays or objects into CSV tables for Excel and database import, with nested fields flattened—all processed locally in your browser.

JSON input

About this tool

Nested objects are flattened into dot-notation column names (e.g. user.name). Array fields are serialized as JSON string columns. Great for exporting API list data.

How to use

  1. Paste a JSON array or object.
  2. Click Convert to CSV.
  3. Copy the CSV into a spreadsheet app.

FAQ

How do I convert JSON to CSV?

On the DevTools JSON to CSV page, paste a JSON array and click Convert. The first row is the header; each following row is one record.

How are nested JSON fields handled?

Nested fields are flattened into multi-level column names such as user.name.

Does it support CSV to JSON?

This page only supports JSON to CSV. Use the CSV to JSON converter for the reverse direction.

Is my data uploaded?

No. Conversion runs locally in your browser.

Related tools