All Tools

JSON to CSV Converter

Convert JSON arrays to CSV format instantly

Input JSON

CSV Output

How JSON to CSV Conversion Works

This tool converts JSON arrays of objects into CSV (Comma-Separated Values) format. Each object in the array becomes a row, and the object keys become column headers.

Nested Object Handling

Nested objects are flattened using dot notation. For example, {"user":{"name":"John"}} produces a column header user.name.

Supported Input

Frequently Asked Questions

What JSON format does this converter accept?
This converter expects a JSON array of objects. Each object becomes a CSV row and keys become column headers.
How are nested objects handled?
Nested objects are flattened using dot notation. For example, {"address":{"city":"NYC"}} becomes a column named 'address.city'.
Can I download the CSV output?
Yes, click Download .csv to save the converted data as a CSV file that can be opened in Excel, Google Sheets, or any spreadsheet application.

Related Tools

JSON Formatter XML to JSON Base64 Encoder URL Encoder

Go deeper

Read the SnoopTool guide behind this tool

The calculator gives you the number. These SnoopTool guides explain the method, the assumptions and the decision — with worked examples, data tables and FAQs.

Browse all SnoopTool guides →

Answers, not just a number

Short, exact answers to the questions people ask alongside this tool — the number first, then the working.

For teams, not just visitors

Want this calculator on your own site?

We build the calculators on SnoopTool as embeddable widgets in your branding, wired to your own lead form — the same maths, your colours, your domain, your leads. Tell us which one and we will send back a working demo you can put in front of your team.

One reply from a person, within one business day. No newsletter, no sequence. See our privacy policy.