CSV to JSON Converter
Convert CSV files to JSON format instantly in your browser
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FAQ
What CSV formats does this converter support?
Our converter supports standard CSV files with comma, semicolon, or tab delimiters. It auto-detects the delimiter and handles quoted fields, escaped characters, and multi-line values.
How does the converter handle CSV headers?
The first row of your CSV is automatically used as JSON object keys. If your CSV has no headers, the tool generates numeric keys (0, 1, 2, etc.) for each column.
Does it preserve numbers and data types?
Yes. The converter intelligently detects numeric values, booleans, and null values in your CSV and converts them to proper JSON types instead of leaving everything as strings.
What's the output format — array of objects or array of arrays?
By default, the output is an array of JSON objects where each row becomes an object with header names as keys. This is the most common format for APIs and JavaScript applications.
Can I convert CSV to JSON without uploading my data?
Yes. This tool processes your CSV entirely in your browser using JavaScript. Your data is never sent to any server. Once you close the page, the data is gone.
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