JSON to CSV Converter
Convert JSON arrays to CSV and CSV back to JSON.
JSON
CSV
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About this tool
This converter flattens a JSON array of objects into a comma-separated table with a header row derived from the union of all keys, and parses CSV back into typed JSON objects.
Preparing the JSON
Input must be an array of objects. Nested objects are flattened using dot notation so address.city becomes its own column.
Quoting rules
Values containing the delimiter, a quote or a newline are wrapped in double quotes with internal quotes doubled, per RFC 4180.
How to use JSON to CSV Converter
- 1
Open JSON to CSV Converter
Everything runs on this page — there is nothing to install and no account required to use the free features.
- 2
Add your input
Paste or enter your values in the panel above. The tool updates as you type, so you can iterate quickly.
- 3
Review the output
Check the result, copy it with one click, and adjust the options until it matches what your system expects.
- 4
Take it further
Use the utility & formatting tips below to make the result production-ready, then unlock the gated extras via the form above.
Best practices
- Keep a canonical format for your team and enforce it automatically rather than by review comments.
- Watch for encoding: UTF-8 in, UTF-8 out, and no stray byte-order marks.
- Spot-check edge cases — empty values, very long strings and non-Latin characters.
- Automate the conversion in your build once the output looks right here.
Why JSON to CSV Converter matters
Formatting and conversion chores are individually trivial and collectively enormous — they quietly consume hours of engineering time every week.
Doing them instantly and consistently removes a whole category of copy-paste mistakes.
Related free & paid tools
| Tool name | Type | Key features | Link |
|---|---|---|---|
| csvkit | Free | CLI suite for converting and querying CSV | Visit |
| Miller (mlr) | Free | Streaming CSV/JSON transforms for huge files | Visit |
| AirtableOffer | Freemium | Import CSV/JSON into a shareable database view | Visit |
Links marked Offer may be partner links. They cost you nothing extra and never affect which tools we recommend.