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CSV to JSON Converter

Convert CSV or spreadsheet data into a clean JSON array.

  • Free
  • No sign-up
  • Runs in your browser

Everything you type is processed in your browser. Nothing you enter is sent to our servers or stored by us.

How to use the CSV to JSON Converter

  1. Paste your CSV (or copy cells from Excel) into the left box, or open a file.
  2. Adjust the options if you need to.
  3. Copy the JSON or download it as a file.

What does this tool do?

The converter uses a full CSV parser, so quoted fields, commas inside quotes and line breaks inside cells are handled correctly. The delimiter (comma, semicolon, tab or pipe) is detected automatically.

With a header row, each line becomes an object keyed by column name. Numbers and true/false values can be converted to real JSON types instead of strings.

Why use it?

  • Feed spreadsheet data into apps and APIs.
  • Prepare fixtures and seed data.
  • Paste straight from Excel or Google Sheets (tab-separated).

Example

name,age
Ada,36 becomes [{"name": "Ada", "age": 36}]

Privacy

Everything you type is processed in your browser. Nothing you enter is sent to our servers or stored by us. There's no account to create and nothing to install.

Last reviewed by the M2Toolkit team.

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