📊 Data
CSV to JSON Converter
Paste your CSV and convert to a clean JSON array. Headers become keys. Numbers auto-detected.
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How CSV to JSON conversion works
The first row of your CSV is treated as the header row and becomes the JSON object keys. Each subsequent row becomes one object in the output array. Numbers are automatically detected and output as numbers (not strings).
Example
A CSV with columns name,age,city and one row Alice,30,London becomes [{"name":"Alice","age":30,"city":"London"}].
Frequently asked questions
Does it handle quoted fields with commas?
Yes — fields wrapped in double quotes that contain commas are handled correctly.
What happens to empty cells?
Empty cells become null in the JSON output.
Is my data sent to a server?
No. All conversion happens in your browser. Nothing is uploaded.