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Free JSON to CSV Converter - Use Online Without Installing
WebConvert JSON arrays to CSV and CSV back to JSON
Handy next tools
Tools people often use together with this one.
How to use this tool
- Enter a JSON array or CSV data.
- Choose the conversion direction and inspect the column preview.
- Copy or download the output, then compare row counts.
Real-world uses
- Review an API list as a table.
- Turn a CSV list into a simple JSON array.
What to check
- Nested arrays and objects may not flatten cleanly into columns.
- Objects with different keys can produce empty cells.
Common problems and fixes
- The JSON cannot be parsed
- Check for an array at the top level, double-quoted strings, and trailing commas.
File and input privacy
Text and files are converted in your browser and are not stored on ToolMarket servers.
Questions about this tool
Does it fully flatten nested JSON?
No. It works best with a flat array of similar objects; inspect nested values after conversion.
Practical guides
- Check JSON Shape before Converting to CSV →
Understand why flat object arrays become tables while nested values need review.
- Fix Garbled CSV Text and Lost Leading Zeros →
Check UTF-8 imports and spreadsheet auto-formatting before publishing a CSV.