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Convert CSV to JSON

Counter CSV → JSON
Drop your files here .csv

    CSV is plain text: no formatting, formulas or multiple sheets, and accented characters can break in Excel. JSON is the shared data format of APIs and programming languages.

    • Free
    • No sign-up
    • Batch conversion

    Why convert CSV to JSON?

    To convert CSV files to JSON, drop them on the counter above.

    Most files convert in seconds: no queue, no email address, and the JSON result saves straight to your computer or phone.

    How to convert CSV to JSON

    1. Add your CSV files

      Drag your CSV files onto the counter or pick them with Choose files. You can add several at once.

    2. Conversion starts by itself

      Each file is converted to JSON and its row is stamped CONVERTED.

    3. Download your JSON file

      Get the file with Download. With several files you can download them all as one ZIP.

    CSV vs JSON

    PropertyCSVJSON
    Full nameComma-Separated ValuesJavaScript Object Notation
    TypeSpreadsheetData
    Multiple sheetsNoNo
    Nested structureNoYes
    Plain textYesYes
    Created byRFC 4180Douglas Crockford (RFC 8259)
    Year—2001
    Extensions.csv.json
    MIMEtext/csvapplication/json

    About the formats

    CSV

    Comma-Separated Values

    CSV stores each table row as a line of text, with cells separated by commas or semicolons. Nearly every program and database can import and export it.

    All CSV conversions

    JSON

    JavaScript Object Notation

    JSON is the lightweight text format web services and apps use to exchange data. It nests objects, arrays, numbers and strings.

    All JSON conversions

    Frequently asked questions

    Is converting CSV to JSON free?

    Yes, completely free. No account, no daily limit, no watermark and no queue.

    Does it work on a phone?

    Yes. It works on iPhone, iPad and Android, with no app to install.

    Is there a file size limit?

    There is no size limit set by us. Files of hundreds of MB convert too; very large files take longer and are handled more comfortably on a computer than on a phone.

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