Data exchangeJSON
APIs and programmatic parsing
JSON is natively parsed by every modern runtime.
JSON vs YAML
JSON versus YAML for APIs, configuration, and human-readable data.
Practical notes
JSON is the universal API payload and parses natively everywhere.
YAML is easier to read and maintain for configuration files.
Criteria
JSON
YAML
File size & compression
None
None
Transparency
Not applicable
Not applicable
Animation
Not applicable
Not applicable
Editing
Editable in any text editor with validation tooling
Editable in any text editor
Openness
Open standard
Open
Browser support
Native parsing in all modern browsers
No native browser parser
Typical uses
Web APIs, Configuration, Data exchange, Application state
Configuration files, CI/CD definitions, Human-readable data, Infrastructure as code
Limitations
No comments, No native schema enforcement, Large payloads are verbose
Parsing edge cases, No native browser support, Indentation-sensitive
Attribute values come from the reviewed records on each format page.Read the methodology for source and review rules.
Use-case verdicts
Winners are conditional. A format wins only when the stated condition matches your workflow.
EditingYAML
Human-authored configuration
YAML is more readable for settings and pipelines.
Sharing & deliveryJSON
Every platform reads JSON
JSON has universal tooling.
Web deliveryJSON
Browser-native payloads
JSON is the standard web API payload.
ArchivingDepends
Both are plain text
Pick YAML for readability or JSON for schema conventions.