Difference between JSON and XML

Both JSON and XML are popular data interchange formats used to store and transfer structured data between systems. JSON is lightweight and commonly used in web APIs, while XML is more verbose but offers richer features like schemas and namespaces.

Same Data in Both Formats

Here is how the same student data looks in JSON and XML ?

JSON Format

{
    "student": {
        "name": "Alice",
        "age": 20,
        "courses": ["Math", "Science", "English"]
    }
}

XML Format

<student>
    <name>Alice</name>
    <age>20</age>
    <courses>
        <course>Math</course>
        <course>Science</course>
        <course>English</course>
    </courses>
</student>

Notice how JSON is more compact − it uses key-value pairs and square brackets for arrays. XML uses opening and closing tags for every element, making it more verbose but self-describing.

Key Differences

Feature JSON XML
Full Form JavaScript Object Notation Extensible Markup Language
Type Data interchange format Markup language
Derived From JavaScript SGML
Syntax Key-value pairs with curly braces Opening and closing tags
Array Support Native array support ([ ]) No native arrays (use repeated tags)
Namespace Support Not supported Supported
Encoding UTF-8 only UTF-8, UTF-16, and others
Readability More compact and easier to read More verbose but self-describing
Parsing Faster (native in JavaScript) Slower (requires XML parser)

Conclusion

JSON is lightweight, easier to parse, and preferred for web APIs and modern applications. XML is more feature-rich with namespace and schema support, making it suitable for complex document structures and enterprise systems like SOAP web services.

Updated on: 2026-03-14T12:26:44+05:30

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