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Format comparison

JSON vs XML

JSON is the default for modern web APIs; XML still dominates document standards, feeds, and enterprise schemas.

Decision table

FeatureJSONXML
VerbosityCompactVerbose
Best forAPIs & app dataDocuments & schemas
Human editingEasy for objectsHeavier trees
SchemasOptional (JSON Schema)XSD / namespaces mature
Web APIsDefaultLegacy / regulated
Mixed content docsWeakStrong

Choose JSON when…

  • REST API payloads
  • Frontend/backend contracts
  • Mobile clients watching size

Choose XML when…

  • RSS/Atom and sitemaps
  • SVG and Office XML
  • XSD-validated B2B

Verdict

Prefer JSON for new public APIs. Keep XML when a standard already requires it (SVG, Office internals, RSS, industry XSD).

Convert between them

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Keep exploring this topic

Stay inside the JSON / XML knowledge graph — sibling comparisons, best-format guides, and converters — not generic homepage links.

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