JSON to CSV
Convert JSON to CSV in your browser. Paste an array or object; nested keys are flattened. Data is not sent to a server.
No uploads. No account. Free to use.
Opens Google’s picker with toolswithoutai.com pre-filled.
- Files never leave your device
- Runs entirely in your browser
- No signup required
- Free
What is JSON to CSV?
JSON to CSV flattens an object or array of objects into a spreadsheet-friendly CSV file in memory.
How to use it
- Paste JSON or drop a .json file.
- The tool flattens objects into columns.
- Download a CSV. Nothing is uploaded.
When to use it
APIs return JSON; finance and ops still live in Excel. Flattening locally keeps customer records off a converter’s disk.
In this family
JSON tools — related tools in the same cluster.
Also useful
Going back to JSON? Use CSV to JSON on the same machine. CSV to JSON.
Frequently asked questions
Are my files uploaded?
No. This tool runs in your browser. Files and text stay on your device and are not sent to our servers.
Does this use AI?
No. It is a deterministic utility. There is no model and no third-party processing of your data.
Related tools
More in Data tools.