Difference Between JSON and XML Last Updated : 11 Jul, 2025 Comments Improve Suggest changes 24 Likes Like Report JSON (JavaScript Object Notation) and XML (Extensible Markup Language) are both formats used for structuring and exchanging data. JSON uses Key Value Structure and XML uses Tag based Structure to make platform independent formats. JSON (JavaScript Object Notation) JSON has a straightforward syntax with key-value pairs, making it easy to read and write for humans. JSON is lightweight compared to XML, resulting in faster parsing and smaller data payloads. JavaScript {"Geeks":[ { "firstName":"Vivek", "lastName":"Kothari" }, { "firstName":"Suraj", "lastName":"Kumar" }, { "firstName":"John", "lastName":"Smith" }, { "firstName":"Peter", "lastName":"Gregory" } ]} XML (Extensible Markup Language)XML is highly extensible, allowing developers to define custom tags and structures suited to specific needs. Strong support for XML Schema Definition (XSD), enabling rigorous validation and data integrity checks. XML <Geeks> <Geek> <firstName>Vivek</firstName> <lastName>Kothari</lastName> </Geek> <Geek> <firstName>Suraj</firstName> <lastName>Kumar</lastName> </Geek> <Geek> <firstName>John</firstName> <lastName>Smith</lastName> </Geek> <Geek> <firstName>Peter</firstName> <lastName>Gregory</lastName> </Geek> </Geeks> Difference Between JSON and XMLJSONXMLIt is JavaScript Object NotationIt is Extensible markup languageIt is based on JavaScript language.It is derived from SGML.It is a way of representing objects.It is a markup language and uses tag structure to represent data items.It does not provides any support for namespaces.It supports namespaces.It supports array.It doesn't supports array.Its files are very easy to read as compared to XML.Its documents are comparatively difficult to read and interpret.It doesn't use end tag.It has start and end tags.It is less secured.It is more secured than JSON.It doesn't supports comments.It supports comments.It supports only UTF-8 encoding.It supports various encoding.When to Use JSON vs XML Use JSON when:Efficiency and simplicity are priorities.You’re building modern web applications or APIs. Use XML when:You need robust validation or extensibility.Working with legacy systems or document-based workflows. Create Quiz Comment V vivekkothari Follow 24 Improve V vivekkothari Follow 24 Improve Article Tags : HTML HTML and XML JSON JavaScript-Misc JavaScript-Questions Web Technologies - Difference Between +2 More Explore HTML BasicsHTML Introduction4 min readHTML Editors4 min readHTML Basics7 min readStructure & ElementsHTML Elements4 min readHTML Attributes7 min readHTML Headings3 min readHTML Paragraphs3 min readHTML Text Formatting4 min readHTML Block and Inline Elements3 min readHTML Charsets4 min readListsHTML Lists3 min readHTML Ordered Lists5 min readHTML Unordered Lists4 min readHTML Description Lists3 min readVisuals & MediaHTML Colors11 min readHTML Links Hyperlinks2 min readHTML Images7 min readHTML Favicon4 min readHTML Video4 min readLayouts & DesignsHTML Tables9 min readHTML Iframes4 min readHTML Layout4 min readHTML File Paths3 min readProjects & Advanced TopicsHTML Forms4 min readHTML5 Semantics5 min readHTML URL Encoding4 min readHTML Responsive Web Design11 min readTop 10 Projects For Beginners To Practice HTML and CSS Skills8 min readTutorial ReferencesHTML Tags - A to Z List5 min readHTML Attributes Complete Reference8 min readHTML Global Attributes5 min readHTML5 Complete Reference8 min readHTML5 MathML Complete Reference3 min readHTML DOM Complete Reference15+ min readHTML DOM Audio/Video Complete Reference2 min readSVG Element Complete Reference5 min readSVG Attribute Complete Reference8 min readSVG Property Complete Reference7 min readHTML Canvas Complete Reference4 min read Like