JSON Convert Tools

CSV to JSON Converter

Convert CSV headers and rows into an array of JSON objects.

Local processing

Drop a file here, or paste your data. Maximum 10 MB. Text files must use UTF-8.

Ready when you are.

Your data is processed in your browser and is not stored on our servers.

JSON numbers use JavaScript precision. Quote large identifiers to preserve their digits. Duplicate object keys keep the last value.

What is CSV to JSON Converter?

Convert CSV headers and rows into an array of JSON objects.

The first CSV row supplies property names. Values stay strings so leading zeros and long identifiers survive conversion.

Why use CSV to JSON Converter?

Use this tool to inspect a small dataset or prepare data for another application without installing software. Processing takes place in this browser. No account is required.

How to use CSV to JSON Converter

  1. Paste your input, upload a file, or load Sample Data.
  2. Choose any applicable options and select Convert.
  3. Review the output, then copy or download it.

Example

Input

name,city,active
Ada,Pune,true
Lin,Tokyo,false

Output

[{"name":"Ada","city":"Pune","active":"true"},{"name":"Lin","city":"Tokyo","active":"false"}]

Common problems

Duplicate or empty column names and uneven row widths are rejected with an explanation. Select a delimiter when automatic detection cannot identify one. A blank cell becomes an empty string, not null.

Frequently asked questions

Is my conversion data uploaded?

No. Conversion inputs and outputs remain in this browser. Contact form messages are handled separately by WordPress.

Can I process large files?

The default limit is 10 MB. Browser memory and data complexity can impose lower practical limits.

Do I need an account?

No account is needed to use this tool.

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