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Data & DevCSV to JSON & JSON to CSV Converter
Bidirectional converter for CSV and JSON data. Supports auto-detection of delimiters, quoted fields, multiline cells, nested JSON flattening, and instant `.csv`/`.json` file export.
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How it works
- Paste your CSV or JSON data or upload a file.
- Toggle conversion direction (CSV → JSON or JSON → CSV).
- Preview the converted output instantly and download or copy the result.
Privacy & Processing Information
100% client-side execution via PapaParse. No data is sent over the network.
No account, tracking, or file storage required.
Frequently Asked Questions
How does it handle nested JSON objects when converting to CSV?
Nested objects and arrays are intelligently flattened into dot-notation columns (e.g. `user.address.city`) or stringified values.
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