Best uses
- Turn an array of objects into rows that can open in spreadsheet software.
- Clean up an API response before sharing it with non-technical teammates.
- Prepare structured export data for import into another business tool.
File Tools
JSON to CSV
Upload a JSON file containing an array of objects and export CSV.
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CSV Preview
Upload JSON to preview CSV.
JSON to CSV guide
Use this converter when a JSON response or export needs to become a spreadsheet-friendly CSV file.
How it works
The tool parses the JSON, finds an object array or the first array inside a parent object, collects the available keys, then writes them as CSV columns.
Supported files
Use JSON arrays of objects or a JSON object that contains an array property. Simple row-like objects convert best.
Privacy and limits
The JSON stays in your browser. Very large files can be slower to preview, and deeply nested data should be flattened before conversion.
Common issues
- If no object array is found, the tool cannot infer CSV rows.
- Nested objects or arrays do not become separate columns automatically.
- Rows with different keys create blank cells where a value is missing.
Next step
Need the opposite direction? Use CSV to JSON. For XML exports, start with XML to CSV.
Example JSON to CSV jobs
API export review: convert an object array to CSV so a teammate can inspect rows in a spreadsheet.
Product feed check: preview headers first and confirm that optional JSON keys did not create surprising blank columns.
Automation handoff: flatten nested values before conversion when the next tool expects simple columns.
Before you convert data files
Data converters are most reliable when the source file is clean before conversion. Check headers, repeated records, delimiters, blank rows, and unexpected nested fields. A converter can preserve structure, but it cannot know the meaning of unclear source data.
Before using the export in another system, compare a few rows against the source file. Look for shifted columns, empty fields, escaped quotes, and values that should stay as text, such as IDs or postal codes. Small cleanup before conversion prevents larger import mistakes later.
- Keep headers unique and stable.
- Preview row counts before using the export elsewhere.
- Save the original file before cleaning or converting it.
After downloading the result, open it once before using it in a client send, upload form, website, or archive. This final check catches format support issues, unexpected file size changes, missing characters, clipped media, or page-order mistakes while the original file is still available.
If the output will be reused, note the settings that produced it. That makes the next export easier to repeat and reduces guesswork when another file needs the same treatment.