JSON to CSV Converter (and CSV to JSON)
Convert a JSON array to CSV for Excel or Google Sheets, or turn a CSV file into JSON. Nested objects are flattened into columns.
How it works
- 1
Paste or open your data
Paste text, drop a file onto the editor or click Open file. Load sample shows how the tool works.
- 2
Adjust the options
The result updates as you type. Change the options to get exactly the output you need.
- 3
Copy or download
Copy the result to the clipboard or download it as a file.
Why PixNudge
Nothing is uploaded
Your data is processed in your browser and never sent to a server, so API keys, tokens and customer data stay private.
Instant, even for large files
There is no round trip to a server: results appear as you type, and files of several megabytes are handled smoothly.
Exact numbers
Long numbers such as 64-bit IDs are kept exactly as written instead of being rounded.
Frequently asked questions
What JSON structure works best?
An array of objects, such as a list of users or orders. Each object becomes a row and each key becomes a column. A single object becomes one row.
How are nested objects handled?
With Flatten nested objects on, {"address": {"city": "Paris"}} becomes a column named address.city. Arrays are written as JSON text in a single cell. When converting CSV to JSON, column names with dots are turned back into nested objects.
Why does Excel show strange characters?
Keep Excel-friendly (UTF-8 BOM) on when you download. It tells Excel that the file is UTF-8, so accented letters and other scripts display correctly. If Excel in your region expects semicolons, choose the semicolon delimiter.