YAML ↔ JSON Converter

Two-way conversion for Kubernetes, Compose and CI configs

Input

Output

🔒 This tool runs entirely in your browser — your data never leaves your device.

YAML ↔ JSON Converter

Convert YAML configuration files (Kubernetes manifests, Docker Compose, GitHub Actions, application configs) to JSON, or pretty-print JSON as YAML. Lightweight built-in parser supports the most common YAML 1.2 subset.

YAML 1.2 subset (mappings, sequences, scalars)
Single and double-quoted strings
Line comments stripped automatically
Compact, readable JSON output
Round-trip stable for plain config
Runs locally in your browser

FAQ

Which YAML features are supported?

Block mappings, block sequences, scalar values (string/int/float/bool/null), inline flow [..] and {..}, quoted strings, line comments. Anchors, aliases, tags, block scalars and multi-doc streams are not supported.

Is this safe for secrets?

Yes. Conversion happens entirely in the browser.