JSON to CSV Converter

Paste a JSON array of objects and get clean CSV you can open in Excel or Google Sheets, all in your browser.

โœ” 100% Freeโœ” No Signupโœ” No Watermarkโœ” Unlimited Use

Updated 2026-08-07 ยท Built and maintained by the MakeToolz team.

Convert JSON to CSV in Your Browser

This free JSON to CSV converter turns a JSON array of objects into clean CSV you can open in Excel, Google Sheets or Numbers. Paste your JSON, click convert, and it reads every object, builds a header row from the keys, and lines up each record, escaping commas and quotes correctly.

It is handy for turning an API response or exported data into a spreadsheet, without a script. Everything runs in your browser, so your data never leaves your device.

How to Use the JSON to CSV Converter

  1. 1
    Paste a JSON array of objects into the box.
  2. 2
    Click Convert to CSV.
  3. 3
    Copy the CSV or download it as a .csv file to open in a spreadsheet.

Why Use MakeToolz's JSON to CSV Converter?

Array of objects

Builds columns from the keys across all records.

Proper escaping

Quotes fields that contain commas, quotes or line breaks.

Excel and Sheets ready

Output opens cleanly in any spreadsheet app.

Copy or download

Grab the CSV or save it as a .csv file in one click.

Private

Your JSON is converted in your browser and never uploaded.

Free

No signup, no limits.

Who Uses a JSON to CSV Converter

Developers, data analysts, and marketers all reach for a JSON to CSV converter when they pull data from an API and need to look at it in a spreadsheet. API responses almost always come back as JSON, but managers, clients, and sales teams want a plain table they can sort and filter. This tool bridges that gap in a couple of seconds.

You do not need to install anything or sign up. The whole conversion happens in your browser using JavaScript, so your JSON never leaves your computer. That matters when the data is a customer export, an order list, or anything else you would rather not upload to a random website. It is free to use as often as you want.

How to Get a Clean CSV Every Time

The converter works best when your JSON is an array of objects, where each object is one row and each key becomes a column. It reads the keys from your records, builds a header row, and lines up every value under the right column. If one object has a key that another is missing, that cell is simply left blank so the columns still line up.

A few habits will save you headaches and give you a spreadsheet that opens without warnings:

  • Wrap your records in square brackets so the top level is an array, not a single object.
  • Use the same keys across every object so your columns stay consistent.
  • Keep values flat where you can, since deep nesting has to be flattened or stringified.
  • Check that your JSON is valid first, because one missing comma or quote will stop the parse.
  • Copy the result into a file with a .csv ending before you open it in Excel.

Common Uses and Handy Tips

People use this tool to turn an API feed into a report, to move records between systems that only accept CSV, and to hand raw data to someone who lives in spreadsheets. It is also popular for quick checks, since a table is far easier to scan than a wall of brackets and quotes.

If your JSON is wrapped inside a larger object, copy out just the array part before you paste it. When a value contains a comma, a quote, or a line break, the converter escapes it and wraps the field in quotation marks so your columns do not break apart. That means the CSV stays correct even when your text is messy.

JSON to CSV Reference

JSON pieceBecomes in CSVNotes
Array of objectsRows of dataEach object turns into one row
Object keysHeader rowColumn names come from the keys
String with a commaQuoted fieldWrapped in " " so columns stay intact
Missing keyEmpty cellLeft blank to keep columns aligned

People Also Ask

What JSON format does the converter need?

It works best with an array of objects, where the whole input is wrapped in square brackets and each object is one record with matching keys.

Can I convert a single JSON object instead of an array?

Yes, but wrap it in square brackets first so it reads as a one-row array, otherwise there are no records to line up into rows.

How are commas and quotes inside my data handled?

Any value with a comma, quote, or line break is escaped and wrapped in quotation marks, so those characters do not split your columns apart.

Does the converter work offline?

Once the page has loaded, the conversion runs entirely in your browser with JavaScript, so it keeps working even if your connection drops.

Is there a limit on how much JSON I can paste?

There is no fixed row limit, though very large inputs depend on your browser and device memory since everything is processed locally.

How do I open the CSV in Google Sheets?

Save the output as a file ending in .csv, then use File and Import in Google Sheets, or just copy the text into a blank sheet and split it by comma.

Frequently Asked Questions

How do I convert JSON to CSV?
Paste a JSON array of objects and click Convert to CSV. The tool creates a header from the keys and a row per object, then lets you copy or download the CSV.
Does it handle nested objects?
Yes, in a simple way: a nested object or array in a field is written back as JSON text inside that CSV cell, so no data is lost. Flatten it first if you want separate columns.
Will the CSV open in Excel?
Yes. Fields with commas, quotes or line breaks are escaped to the CSV standard, so the file opens cleanly in Excel, Google Sheets and Numbers.
Is my data uploaded?
No. The conversion happens entirely in your browser, so your JSON never leaves your device.

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