Convert JSON to CSV
Free · no signup · no watermark · runs in your browser · batch up to 20 files
Drop your JSON files here
or click to choose — up to 20 at once
Select JSON fileThis runs entirely in your browser. The file never leaves your machine and nothing is uploaded. Need test files? Try our free sample files.
This free JSON to CSV converter turns your .json files into .csv files. JSON is what web APIs speak. It nests, it has real types, and spreadsheets cannot read it.
This conversion runs entirely in your browser. The file is never uploaded, which makes it instant, private and usable on work files you would not want to send to a stranger's server.
How to convert JSON to CSV
- Drop your JSON files onto the box above, or click it to choose from your computer. Up to 20 at once.
- The conversion starts as soon as the file is read — there is nothing to configure.
- Download each converted file, or pick them up one by one from the list.
What changes when you convert JSON to CSV
CSV is a flat table and JSON can nest. Nested values are written into their cell as JSON text rather than dropped, so nothing is lost, but the result is a table with some structured cells rather than a fully flattened one.
JSON and CSV compared
| JSON | CSV | |
|---|---|---|
| Full name | JavaScript Object Notation | Comma-Separated Values |
| Extension | .json | .csv |
| MIME type | application/json | text/csv |
JSON: The default interchange format for web APIs. Supports nesting, arrays and real types, which CSV does not, so converting between the two means deciding how to flatten or rebuild structure.
CSV: The lowest common denominator for tabular data: every spreadsheet and database reads it. It carries no types, so everything arrives as text, and quoting rules are where most import bugs live.
Frequently asked questions
How do I convert JSON to CSV?
Drop your .json file onto the box on this page and the .csv file is ready to download in a second or two. There is no signup, no email, no watermark and no file limit beyond what your browser can hold in memory.
Is this JSON to CSV converter free?
Yes, completely, with no account, no trial and no watermark on the output. We are a consultancy and these tools exist because we needed them ourselves; there is nothing to buy on this page.
Are my files uploaded anywhere?
No. This conversion runs entirely in your browser using JavaScript, so the file never leaves your computer. You can disconnect from the network after the page loads and it will still work.
Will converting to CSV reduce the quality?
CSV is a flat table and JSON can nest. Nested values are written into their cell as JSON text rather than dropped, so nothing is lost, but the result is a table with some structured cells rather than a fully flattened one.
Can I convert several JSON files at once?
Yes, up to 20 files in one go. Drop them all onto the box together and each one appears in the results list with its own download button.
Found a problem, or something that could be better? We read every message and we fix things quickly.
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