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Convert JSON to CSV Online

Convert JSON to CSV online, free and private: your data never leaves your browser. Paste a JSON array of objects or drop a .json file, edit in a real spreadsheet grid, then export CSV with your preferred delimiter.

Drop a CSV or Excel file here

CSV · XLSX · XLS · XLSM · XLSB

or paste your data below

How to convert JSON to CSV

Three steps from JSON to a clean CSV file.

1. Paste JSON

Paste an array of objects, a 2D array, a keyed object or JSONLines, or drop a .json file.

2. Edit in the grid

Fix values, reorder columns, add rows. The output updates in real time as you edit the spreadsheet.

3. Download CSV

Pick a delimiter, then copy or download the CSV. Your data never left your browser.

Need this conversion in your own app?

The file parsing behind this page is powered by TabularJS: a zero-dependency JavaScript library that converts spreadsheet files to JSON in Node.js and the browser. 16+ formats, formulas, styles and merged cells included.

npm install tabularjs Zero dependencies

Frequently asked questions

Is this JSON to CSV converter free?

Yes. No account, no sign-up, no watermark. Open the page and start converting.

Is my data private?

Yes. Everything runs in your browser. Your JSON is read and processed on your device. Nothing is uploaded, nothing is logged.

Which JSON input shapes are accepted?

An array of objects (most common), a 2D array, a keyed object, and JSONLines (one JSON object per line). The tool detects the shape automatically.

How are nested objects handled?

Nested objects and arrays are serialized to a JSON string inside the cell, so no data is lost. Flatten them in the grid if you prefer separate columns.

Which delimiters are supported?

Comma, semicolon, tab and pipe. Cells containing the delimiter, quotes or line breaks are quoted and escaped automatically.

Can I embed this converter in my own app?

Yes. The engine that powers this page is the TabularJS JavaScript library. You can embed it in React, Vue, Angular or plain JavaScript.