Does it handle quoted CSV fields?

Yes. Fields containing commas or quotes enclosed in double quotes are parsed correctly per CSV spec.

What delimiters are supported?

Comma (,), semicolon (;), tab, and pipe (|).

Does it convert string numbers to JSON numbers?

Yes. Numeric string values like "42" are automatically converted to JSON numbers.

Can I convert JSON back to CSV?

Yes! Click the swap button (⇄) to switch to JSON-to-CSV mode.

Is there a file size limit?

No strict limit, but very large files (>10MB) may be slow. Split into smaller chunks if needed.

ToolsArena

CSV to JSON

Convert CSV to JSON and JSON to CSV — fast bidirectional converter.

CSVJSON

Delimiter:

Upload file

CSV Input

JSON Output

[
  {
    "name": "Alice",
    "age": 28,
    "city": "New York",
    "email": "alice@example.com"
  },
  {
    "name": "Bob",
    "age": 34,
    "city": "London",
    "email": "bob@example.com"
  },
  {
    "name": "Charlie",
    "age": 22,
    "city": "Tokyo",
    "email": "charlie@example.com"
  }
]

Input: 122 chars·Output: 303 chars·3 rows

How to Use CSV to JSON

1
Paste CSV data or click "Upload file" to load a .csv file.
2
Select the correct delimiter for your CSV.
3
JSON output appears instantly in the right panel.
4
Click "Copy" or "Download" to save the result.
5
Use the swap button to convert JSON back to CSV.

About CSV to JSON

Convert CSV data to JSON format and vice versa instantly. Paste data, upload a file, or type in the editor — output is generated in real time.

Supports multiple delimiters (comma, semicolon, tab, pipe), auto-detects numeric values, and handles quoted fields correctly. Download as .json or .csv file.