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Convert json data files

JavaScript Object Notation. The default way machines exchange structured data. Text made of objects, arrays, strings, numbers, booleans and null, with a syntax borrowed from JavaScript but with no code in it. That is the format you end up with when something needs to look the same on every screen, which is why it keeps turning up in an api response you want to look at properly. From here it can become PDF, CSV, XML, TXT and HTML, and the conversions run on your own device, so the file is never uploaded anywhere.

At a glance

Source
JSON
Where it runs
Your browser
Cost
Free, unlimited
Account
Not needed
JSON

Converter

Universal converter

On device

Drop one or more json data files.

or select json data

Your file never leaves this browser

    About the format

    JavaScript Object Notation.

    Text made of objects, arrays, strings, numbers, booleans and null, with a syntax borrowed from JavaScript but with no code in it.

    Where it is good
    • Readable as well as parseable
    • Maps almost exactly onto objects in every major language
    • Strict about its types, so mistakes surface immediately
    Where it falls short
    • No comments
    • No way to refer to the same piece of data twice
    • Not for very large files — the whole thing is usually held in memory
    You will find it on
    Web APIs, config files, data pipelines, every modern app

    The thing people miss

    JSON has no trailing commas and no comments, which is the two things people try to add to it most often — and which break every strict parser.

    Where it goes next

    An API response you want to look at properly

    Real jobs

    What people are actually doing with JSON

    An API response you want to look at properly

    Turning a flat table into nested structure for a developer

    A configuration file a program can read

    How to

    Converting a JSON file

    1. 01

      Add your json data

      Drag the file onto the drop zone, or tap to browse. Only one file is needed.

    2. 02

      Pick what you want it to become

      Every format this file can become is listed in the switchboard. Pick one and the converter opens with sensible defaults already set.

    3. 03

      Download the result

      Your converted file downloads straight to your device. Nothing was uploaded, so there is no file to delete from a server afterwards.

    Also available

    JSON converts into

    PDFPDF documentCSVComma separated valuesXMLXML documentTXTPlain textHTMLHTML document

    Questions

    JSON conversion questions

    How do I convert JSON to another format?

    Add your json data file to the drop zone, choose the target format, adjust the options if you want to, and press convert. The finished file downloads immediately.

    Is my file uploaded anywhere?

    For most conversions, no. They run entirely inside your browser tab. The file is read from your device and the result is written back to your device.

    Do I need an account?

    No. There is no signup step, no email capture and no usage counter. Open the tool, convert the file, close the tab.

    Will there be a watermark or a page limit?

    Neither. On-device conversions produce a clean file with no branding and no cap on pages, size or number of files.