YAML Validator & Formatter
Paste any YAML — a Minecraft plugin/server config, a Docker Compose file, a CI pipeline, anything — and catch indentation errors, duplicate keys and syntax mistakes with line-precise messages, a click-to-jump structure tree, and a re-indented export that never touches your comments.
Input
Paste your YAML
Generic YAML syntax checking — works for any file. Minecraft configs (config.yml, bukkit.yml, paper.yml) are called out specifically because tab indentation and strict SnakeYAML parsing bite them the most.
Result
Validation summary
Diagnostics
Line-precise issues
Click a highlighted line to jump the editor there.
No issues found. This YAML parses cleanly.
Not YAML?
Working with JSON or XML instead? That's a different grammar and a different set of pitfalls — the JSON / XML Validator.
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