CSV to JSON Converter
Parse delimited data to JSON with header and type detection.
Files and text are processed locally in your browser. Tools that must reach the network say so explicitly.
About the CSV to JSON Converter
Turn CSV or other delimited data into JSON. The Toolcenter CSV to JSON converter handles quoted fields, custom delimiters (comma, semicolon, tab, pipe), optional header rows and automatic detection of numbers and booleans. Drop a file or paste text and download clean, pretty-printed JSON.
How to use it
- 1Paste CSV text or drop a .csv file.
- 2Set the delimiter and whether the first row is a header.
- 3Toggle number and boolean inference.
- 4Copy or download the JSON output.
Key features
- Handles quoted fields and embedded commas
- Comma, semicolon, tab and pipe delimiters
- Header row → array of objects, or raw arrays
- Automatic type inference
- No upload — parsing is local
Frequently asked questions
Does it keep data types?+
With inference on, values like 42, 3.14, true and false become real numbers and booleans instead of strings.
What if my CSV uses semicolons?+
Set the delimiter to semicolon (common in European locales). Tab and pipe are also supported.
Can I get an array of arrays instead of objects?+
Yes. Turn off “first row is header” to get raw row arrays.
Is my file uploaded?+
No. Parsing runs entirely in your browser.
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