CSV to JSON Converter
Transform comma-separated tables into a formatted JSON array for APIs, scripts, and application data. The first row supplies object keys and every following row becomes a JSON object.
Convert CSV to JSON
Paste CSV or upload a .csv file to create formatted JSON locally, without sending the source table anywhere.
Press Ctrl/⌘ + Enter to convert.
CSV is best for arrays of records; XML attributes use @_ keys in other formats.
How CSV maps to JSON
The converter applies clear rules so you can understand the output before using it in another tool or workflow.
Headers become JSON keys
The first CSV row defines property names. Each later row becomes an object in the resulting JSON array.
Common values are typed
Numbers, true, false, and null are recognized as JSON values instead of always being returned as strings.
Quoted fields are parsed
Quoted commas, line breaks, and doubled quotes are parsed as part of a field before supported primitive values are inferred.
How to convert CSV to JSON
No signup or installation is required. Paste content or choose a local file, convert it, and save the result.
- 1
Paste comma-separated data with a header row or upload a .csv file.
- 2
Confirm CSV is the source format and JSON is the destination.
- 3
Select Convert to JSON and inspect the array of row objects.
- 4
Copy the formatted JSON or download a .json file.
CSV to JSON FAQ
Answers about file handling, conversion rules, and the generated JSON output.