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YAML

YAML

YAML Ain't Markup Language - Human-friendly data serialization

YAML is a human-readable data serialization format used for configuration files and data exchange across languages.

Category

Configuration / Data serialization

First Release

2001

File Extension

.yaml

Creator

Clark Evans

Latest News

Symfony YAML Component Vulnerability Allows Denial-of-Service Attacks

A stack overflow vulnerability in the Symfony YAML component's inline lexer enables attackers to crash applications through maliciously crafted, deeply nested input.

10/15/2026 • 0 likes

Difficulty

Intermediate 2/3

Easy to read and write, but correct indentation and understanding of anchors, aliases, and complex types require practice.