CSV to JSON Converter

How to use it

1. 1Pick a direction, then paste your data into the left box.
2. 2Leave the delimiter on automatic unless the guess is wrong — comma, semicolon, tab and pipe are all detected.
3. 3Read the row and column count underneath to confirm it parsed the way you expected.
4. 4Turn off "convert numbers and booleans" if you want every value kept as a string.
5. 5Check any warnings shown: a ragged row or a duplicate column name means something will not survive the conversion intact.

Frequently asked questions

Does this handle commas inside quoted fields?

Yes, along with escaped double quotes and newlines inside cells. The parser tracks quote state character by character rather than splitting on delimiters, which is what makes those cases work.

Why is my number showing as text?

Values with a leading zero are kept as strings on purpose, because they are almost always phone numbers, postcodes or reference codes. Turning 007 into 7 is a data-loss bug, not a convenience.

Is my file uploaded to a server?

No. Parsing and conversion both run in your browser, so the data never leaves your device — which matters, since most of what people convert is customer or financial records.

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