JSON to CSV Converter
Convert a JSON array of objects into CSV online. Paste your array, get comma-separated table text with the object keys as the header row, then copy it or download a .csv file.
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How to Use
- Paste a JSON array into the input box (a sample is preloaded); every element should be an object with a similar shape
- Click "Convert to CSV" and the resulting CSV table text appears below
- Click "Copy result" to copy the CSV, or "Download CSV" to save it as a .csv file
- Click "Clear" to reset the input and the result
Features
- Converts a JSON array of objects into comma-separated CSV, using the object keys as the header row
- Escapes CSV fields automatically when a value contains commas, quotes or line breaks
- Copy the result in one click, or download it as a .csv file with a UTF-8 BOM so Excel opens non-ASCII text without garbled characters
- Reports a clear error message when the input is invalid JSON or is not an array
Use Cases
Analyzing API data in a spreadsheet
Convert a JSON array returned by an API into CSV, then open it in Excel or WPS for filtering and pivot tables.
Bulk importing data into other systems
Many systems only accept CSV for bulk import, so convert your JSON source data before uploading it.
Producing test data files
Turn structured JSON test data into a CSV file quickly to exercise an import feature.
Archiving logs and statistics
Convert JSON statistics into a CSV table that is easy to archive or share with colleagues who do not work with JSON.
FAQ
Does the input have to be a JSON array?
Yes. Supply an array of objects in the form [{...},{...}]. The keys of the first object become the CSV header row and each object is written out as one data row.
What happens if the objects have different fields?
Keep the objects consistent, with the same field names, to get a tidy table. Mismatched fields can leave columns missing or values misaligned.
Will commas or line breaks inside a value break the CSV?
No. Values containing commas, double quotes or line breaks are escaped with standard CSV quoting, so the generated file stays valid.
Will non-ASCII text look garbled when I open the file in Excel?
No. The download includes a UTF-8 BOM, so Excel and WPS display Chinese and other non-ASCII characters correctly.