Free JSON to CSV converter

Why convert JSON to CSV?

A spreadsheet is far easier to read, sort and hand to a colleague than a wall of nested JSON.

How to convert JSON to CSV

1. Choose your JSON file. Drop it on the box above, or tap to browse. You can pick several files at once.
2. Confirm the target is .csv. It is preselected when your browser can encode it; otherwise the closest available target is chosen. Adjust quality, size or the other options if you want to.
3. Convert and download. Press Convert, then Download. Your file stays on your device the whole time.

What is a .json file?

JSON is the data format of the modern web: nested objects and lists written as readable text. Every programming language and virtually every API speaks it, which makes it the usual destination when data has to leave a spreadsheet and enter a program.

What is a .csv file?

CSV is a table written as plain text: one row per line, values separated by commas. Every spreadsheet, database and programming language on earth can read and write it, which is why it remains the default way to move data between systems — at the cost of storing no formatting, no formulas and no idea what a date is.

What to expect from this conversion

Cell values are carried across exactly as they appear. Formulas become their calculated results, and formats that hold only one table — CSV and TSV — take the first sheet of a multi-sheet workbook. Nested objects are flattened into columns using dotted names, so nothing is silently dropped. A CSV holds one sheet of values, so formulas, formatting and extra sheets do not come across.

Is it private?

Yes, by design. Every conversion happens inside your own browser using your device’s processor — there is no server that receives your JSON file, so there is nothing for anyone to store, scan or leak. You can confirm it yourself: open your browser’s developer tools, watch the Network tab while you convert, and you will see no upload.

Questions about JSON to CSV

Is this JSON to CSV converter free?

Yes, completely. There is no account, no daily limit, no watermark and no premium tier.

Is my JSON file uploaded to a server?

No. The conversion runs inside your own browser using your device's processor. The file is read from your disk, converted in memory and saved back to your disk — nothing is transmitted, so there is nothing for anyone to store.

Can I convert JSON to CSV online without downloading software?

Yes. This is an online JSON to CSV converter that runs in your browser, so there is nothing to install and no app to trust with your files. It works the same on a phone.

What happens to the quality?

Cell values are carried across exactly as they appear. Formulas become their calculated results, and formats that hold only one table — CSV and TSV — take the first sheet of a multi-sheet workbook. Nested objects are flattened into columns using dotted names, so nothing is silently dropped. A CSV holds one sheet of values, so formulas, formatting and extra sheets do not come across.

Can I convert several JSON files at once?

Yes. Select as many files as you like and they are converted one after another in a single tap, with a download for each and a zip of all of them.

Can I convert JSON to CSV without Python or a script?

Yes — that is what this page is for. Python does the same job well if you already have it set up and thousands of files to process; for one file, or a handful, the browser is faster than installing anything.

Should I keep the original JSON file?

Yes — keep it, converting never touches it. The reason to make a copy in another format is that JSON is written for programs to parse, not for people to read.

Related conversions

See all 399 conversions · Read the guides