Convert CSV to JSON

To convert CSV to JSON: add the .csv file below and click Convert. Your browser parses it into a JSON array of objects that downloads immediately.

Drop your CSV file here

or browse your device

Your file is processed on your device and never uploaded anywhere.

    Turn a spreadsheet export into JSON for APIs, config files, or code. This tool reads your CSV’s header row and converts each row into a JSON object, all in your browser with nothing uploaded.

    How do I convert CSV to JSON?

    1. Add your CSV file using the box above — drag and drop, or tap to browse.
    2. Press Convert to JSON. The file is processed right in your browser.
    3. Download your new JSON file. Nothing is ever uploaded.

    Good to know

    • The first row is treated as the header, and each following row becomes a JSON object keyed by those column names.
    • The parser handles quoted fields, embedded commas, and line breaks inside cells so messy exports convert correctly.
    • Numbers are kept as numbers where possible, giving you clean, ready-to-use JSON.

    Frequently asked questions

    How do I convert CSV to JSON?

    Add your CSV file above and click Convert. Your browser parses it into a JSON array of objects and downloads it.

    Does the first row have to be headers?

    Yes — the header row supplies the property names used for each JSON object.

    Is my spreadsheet uploaded?

    No. The file is parsed entirely in your browser and never sent to a server.

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    Last updated: 2026-08-30