CSV to JSON Converter

Convert CSV to JSON instantly, live as you type, using the first row as field names.

Runs in your browser, nothing sent

csv-to-jsonyour input stays here

CSV

JSON

[
  {
    "name": "Ada",
    "role": "Engineer"
  },
  {
    "name": "Grace",
    "role": "Engineer"
  }
]

Uses the first row as field names. Handles quoted fields with embedded commas correctly. Converts live as you type, entirely in your browser.

Need the opposite? JSON to CSV Converter

What is CSV to JSON Converter?

Paste CSV and get a JSON array of objects instantly, using the first row as field names for each object. It handles quoted fields with embedded commas correctly, not just a naive comma split. This is the everyday shape most APIs and JS code expect: an array where each row becomes one object keyed by column header. Conversion happens live as you type, entirely in your browser, so a spreadsheet export with real data never has to be uploaded anywhere to be turned into JSON.

How to Use the CSV to JSON Converter

1
Paste the CSV: Enter CSV data with a header row, such as a spreadsheet export.
2
Read the JSON Result Instantly: The equivalent JSON array of objects appears automatically as you type.
3
Copy the Result: Use the copy button to copy the JSON for use in your application or API.

How CSV Maps to JSON

The first CSV row is treated as the field names, and every row after that becomes one JSON object. Each cell's value gets assigned to the key from its column position in the header row. The result is a JSON array with one object per data row, so a CSV with a header plus 3 data rows produces an array of 3 objects.

Example

JSON

CSV input:
name,role,city
Alice,Engineer,Boston
Bob,Designer,"Austin, TX"
Carol,PM,Denver

JSON output:
[
  {"name": "Alice", "role": "Engineer", "city": "Boston"},
  {"name": "Bob", "role": "Designer", "city": "Austin, TX"},
  {"name": "Carol", "role": "PM", "city": "Denver"}
]

Note Bob's city: the comma inside "Austin, TX" stays inside a single quoted CSV field and becomes one JSON string value, not two separate fields.

FAQs

Frequently Asked Questions

Common questions about CSV to JSON Converter.

Quote it in the CSV (the standard convention) and it's parsed correctly as a single field, not split into two.

They become empty strings in the resulting JSON rather than being omitted, so every object in the output array has the same set of keys.

No. Parsing and conversion both happen in your browser via JavaScript. Nothing is sent to a server.

A short row results in missing keys for that object, and an extra column beyond the header count is generally ignored, since there's no header name to assign it to.

The converter expects standard comma-delimited CSV. If your source file uses a different delimiter (common in some European locales using semicolons), convert or find-and-replace the delimiter to a comma first.

Yes, Bytelify's CSV to JSON Converter is free with no account or sign-up required.