CSV to JSON Converter

This tool converts comma-separated values (CSV) into structured JSON format instantly. It’s perfect for developers, data analysts, and content editors who need to turn table-style data into clean JSON for use in APIs, config files, web apps, or documentation. You can paste, upload, or edit CSV input and customize how the JSON is generated using live options.

Paste your input above or import a file below.
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Supported file types: .csv, .txt
Total characters: 0
Options
First row is header
Trim values

How to Use:

Paste your CSV into the input box on the left. You can also upload a .csv or .txt file using the Choose File button. Then, use the Options panel to control the output:

  • First row is header: Treats the first row of the CSV as key names for the JSON objects. If disabled, each row is converted into a flat array.
  • Trim values: Removes whitespace around each value for a cleaner result.

The JSON output updates automatically as you type or change settings. Use Copy Output to copy the result, or click Export to File to download it. Click Clear All to reset the tool.

What the CSV to JSON Converter Tool does:

This tool reads each row of your CSV and converts it into a JSON structure. When headers are enabled, it creates an array of objects using column names as keys. If headers are off, it returns an array of arrays. It escapes characters where needed, formats the result with indentation, and ensures valid JSON syntax.

Example:

Input CSV:

name,age,city
Alice,28,Paris
Bob,34,Berlin

Output JSON:

[
  {
    "name": "Alice",
    "age": "28",
    "city": "Paris"
  },
  {
    "name": "Bob",
    "age": "34",
    "city": "Berlin"
  }
]

Common Use Cases:

Use this tool when migrating spreadsheet data to structured JSON, transforming tables for web applications, or prepping CSV files for use in mock APIs or no-code tools. It’s also great for exploring how data maps between flat text and structured formats. Just paste, preview, and export.

Useful Tools & Suggestions:

If you’re working in the opposite direction, JSON to CSV Converter brings your structured data right back into rows and columns. And when you want to pivot formats for compatibility with code or config files, CSV to YAML Converter helps bridge the gap cleanly.

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