JSON to CSV Converter
Convert API and structured JSON data into spreadsheet-friendly CSV.
Local developer data tool
Paste JSON and convert it to CSV.
Turn arrays of objects into CSV, flatten nested fields with dot notation, and download without sending data to a server.
Rows: 0 · Fields: 0 · Input size: 0 B
When should you convert JSON to CSV?
JSON is common in APIs and developer tools, while CSV is easier to inspect in spreadsheet apps and data-cleaning workflows.
This converter supports JSON objects and arrays of objects. Nested objects are flattened with dot notation so nested data is visible instead of silently discarded.
Frequently Asked Questions
Is this JSON to CSV Converter free?
Yes. You can paste, convert, copy, and download CSV without signup.
Are JSON files uploaded?
No. JSON files are read and converted locally in your browser.
What JSON shape works best?
Arrays of objects work best. A single object is converted into one CSV row.
How are nested objects handled?
Nested keys are flattened with dot notation, such as profile.name.
Does it support Unicode?
Yes. UTF-8 text, accents, Asian scripts, and emojis are preserved in CSV output.
Privacy Policy
We do not collect, store, upload, or transmit JSON or CSV data. Local file selection reads the file only in your browser.
Terms of Use
ConvertUnlimited is provided as is. Review generated CSV before using it in production systems.