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Convert XLS to JSON

Counter XLS → JSON
Drop your files here .xls

    XLS is the old Excel 97-2003 format with a 65,536-row limit that newer tools struggle with. JSON is the shared data format of APIs and programming languages.

    • Free
    • No sign-up
    • Batch conversion

    Why convert XLS to JSON?

    To convert XLS 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 XLS to JSON

    1. Add your XLS files

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

    2. Check the settings

      The defaults suit most cases. Change quality, size or other options if you like; after a change, one click converts again.

    3. Conversion starts by itself

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

    4. Download your JSON file

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

    XLS vs JSON

    PropertyXLSJSON
    Full nameMicrosoft Excel 97-2003JavaScript Object Notation
    TypeSpreadsheetData
    Multiple sheetsYesNo
    Nested structureNoYes
    Plain textNoYes
    Created byMicrosoftDouglas Crockford (RFC 8259)
    Year19972001
    Extensions.xls.json
    MIMEapplication/vnd.ms-excelapplication/json

    About the formats

    XLS

    Microsoft Excel 97-2003

    XLS is the binary spreadsheet format of Excel 97-2003. Older accounting software and enterprise systems still produce or require it.

    All XLS 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 XLS 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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