Does it handle CSV with quoted fields?

Yes. Fields containing commas or newlines must be surrounded by double quotes in standard CSV. The parser handles quoted fields and escaped quotes ("") correctly.

What happens with missing values?

If a row has fewer columns than the header, missing fields are set to empty string. Extra columns beyond the header count are ignored.

Can I use a different delimiter?

Yes. Switch between comma (,), semicolon (;), and tab (TSV) delimiters using the selector.

How should my JSON be structured for JSON→CSV conversion?

Input should be an array of objects where all objects share the same keys. The keys become column headers. Nested objects are not supported — flatten them first.

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CSV ↔ JSON Converter

Convert CSV data to JSON and JSON arrays back to CSV — with delimiter options and live preview.

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About this tool

Bidirectional CSV and JSON converter. Paste CSV to get a JSON array of objects (using the first row as keys), or paste a JSON array to export it as CSV. Supports custom delimiters (comma, semicolon, tab) and handles quoted fields correctly.

How to use

1 Paste CSV data (with header row) into the input and click 'CSV → JSON'.
2 Or paste a JSON array of objects and click 'JSON → CSV'.
3 Select delimiter if your CSV uses semicolons or tabs.
4 Copy the result with the Copy button.

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