CSV to JSON Converter
Convert CSV data to JSON array format.
How to Use the CSV to JSON Converter
Paste your CSV data into the input box (the first row must contain column headers), then click "Convert" to transform it into a JSON array of objects. Each row becomes one object whose keys are the header names.
What This Tool Does
- Auto-detect delimiter — automatically detects commas, tabs, semicolons and pipes
- Quoted fields — handles double-quoted values including escaped quotes and embedded delimiters
- Trim whitespace — optionally trims leading and trailing spaces from headers and values
- Copy output — copy the JSON result to your clipboard in one click
The tool runs entirely in your browser. No data is sent to any server.
Frequently Asked Questions
What CSV format is expected?
The first row must be column headers. Each subsequent row is a data record. Fields can optionally be wrapped in double quotes.
Can it handle quoted fields with commas?
Yes. Fields enclosed in double quotes can contain commas, newlines and escaped quotes ("") without breaking the parser.
Does it support tab-separated values (TSV)?
Yes. The auto-detect option recognizes tabs, semicolons and pipes in addition to commas. You can also select the delimiter manually.
Is there a size limit?
There is no hard limit, but very large files (over 10 MB) may slow down your browser since all processing happens client-side.
Does my data leave my device?
No. Everything runs locally in your browser using JavaScript. No data is uploaded or stored anywhere.
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