CSV to JSON
FreeConvert CSV spreadsheet data to JSON format
[
{
"name": "Mehul",
"city": "Ahmedabad"
},
{
"name": "Saurav",
"city": "Mumbai"
}
]About CSV to JSON
Spreadsheets and exports arrive as CSV, but your code wants structured objects it can loop over and index by field name. Parsing CSV by hand means splitting on commas, tracking the header row, and dealing with quoted fields that contain commas of their own. This tool reads the CSV for you and returns a clean JSON array, so you can drop the result straight into your app, test fixture, or API call.
Paste your CSV with a header row on top, and each following line becomes a JSON object keyed by the column names. It runs entirely in your browser, free and without an account, returning results the moment you paste. Quoted values and embedded commas are respected, so well-formed CSV converts predictably into usable JSON.
Common uses
- Converting an exported spreadsheet into JSON to seed a database or test suite
- Turning CSV data into objects you can map over in JavaScript or Python
- Building a JSON config from a tabular CSV someone gave you
- Inspecting CSV as readable key-value JSON instead of raw rows
- Preparing CSV records for a JSON-based API request body
How to use
- 1
Configure options
Set your preferences using the options panel below.
- 2
Click Generate
Click the process button to generate your result instantly.
- 3
Copy or download
Copy the result to clipboard or download it directly to your device.
Why ToolHub?
- Accurate conversion
- Multiple formats
- Instant results
FAQ
Does the first row become the keys?
Yes. The header row defines the object keys, and every subsequent row becomes one object with those keys.
Are quoted fields with commas handled?
Fields wrapped in quotes are parsed as single values, so commas and line breaks inside them do not split the column.
Will numbers stay numbers?
CSV has no types, so values typically come through as strings. Cast them in your code if you need numbers or booleans.
What if a row has the wrong number of columns?
Rows are matched against the header positionally. Mismatched rows can produce missing or shifted fields, so check your CSV is well-formed first.
Can I use CSV to JSON on mobile?
Yes — ToolHub is fully responsive and works on iPhone, Android, tablets and all modern browsers. No app install needed.