ToolHive

CSV to JSON Converter

Transform comma-separated values into JSON arrays instantly.

csv to jsonconvert csv to jsoncsv json converter

Interactive Tool

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Intro

This tool uses robust parsing to turn CSV data into structured JSON.

It handles headers, quotes, and empty lines automatically.

How to use

  1. Paste CSV
    Paste your CSV data directly into the input area.
  2. Review JSON
    Check the output on the right panel.
  3. Copy Code
    Copy your formatted JSON.

Examples

Basic Table
Convert an id/name table to JSON.
Input
id,name
1,Alice
2,Bob
Output
[
  {
    "id": "1",
    "name": "Alice"
  },
  {
    "id": "2",
    "name": "Bob"
  }
]
Tab-separated data
Convert tab-delimited data into a JSON array.
Input
id	name
1	Alice
2	Bob
Output
[
  {"id": "1", "name": "Alice"},
  {"id": "2", "name": "Bob"}
]

FAQ

What CSV formats are supported?

The tool supports standard RFC 4180 CSV format, including quoted fields, embedded commas, and multiline values within quotes. Common delimiters like commas and tabs are handled.

Does it handle CSV files with headers?

Yes, the first row is treated as column headers and used as JSON object keys. The remaining rows become array entries with those keys.

Is there a size limit for CSV conversion?

The conversion runs in your browser. Files up to a few MB generally process instantly. Very large files (10+ MB) may take longer depending on your device.

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