Convert JSON to CSV
or click to upload
JSON
Flatten JSON arrays into a CSV you can open in Excel or Google Sheets. Column headings are built from your keys, and your data never leaves your browser.
- No watermarks
- Fast conversion
- 100 % in-browser
- Zero sign-up
How It Works
Convert JSON to CSV in three quick steps.
Upload JSON files
Drag and drop JSON files or browse your device. You can add several at once.
Convert to CSV
Your browser converts every file locally, so nothing is uploaded.
Download CSV
Save your CSV file, or a ZIP when you converted several files.
What is a JSON to CSV converter?
API responses and exports usually arrive as JSON, which is hard to read and analyse in a spreadsheet. A JSON to CSV converter turns an array of objects into rows and columns, so you can sort, filter and chart the data in Excel or import it into a database.
A single JSON object that is not a list is exported as a one-row CSV.
Keys become column headings
Every key found in any object becomes a column, so records with different fields still line up.
Nested values stay readable
Objects and arrays inside a record are written into the cell as JSON text instead of being dropped.
Several array shapes
Arrays of objects, arrays of arrays and objects that hold arrays (one CSV per key) are supported.
Opens correctly in Excel
The CSV is saved as UTF-8 with a byte order mark, so accents and non-Latin characters display properly.
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Simple JSON to CSV Conversion
A fast, private way to turn JSON files into CSV.
Quick Conversion
Convert JSON to CSV in seconds. Everything is processed on your device, so there is no upload wait.
Private by Design
Your files never leave your browser. Nothing is uploaded to a server and nothing is stored.
Works Everywhere
Use it on desktop, tablet or phone. There is no software to install and no extension needed.
Completely Free
No account, no watermark and no limit on how many files you convert.
Frequently Asked Questions
Common questions about JSON to CSV conversion.
Upload a .json file, press Convert and download the CSV. The file must contain valid JSON.
An array of objects, such as [{"id":1,"name":"A"},{"id":2,"name":"B"}], gives one row per object.
They are written into the cell as JSON text so no information is lost.
The CSV has a column for every key that appears in any record. Missing values are left empty.
The file is probably not valid JSON, for example because of a trailing comma or unquoted keys. Check it with a JSON validator.
No. The conversion is done locally in your browser.
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