YAML to JSON / JSON to YAML
Convert between YAML and JSON configuration formats instantly in your browser. No external libraries, no server round-trips.
Where this conversion helps
YAML and JSON serve the same data model but target different audiences and toolchains.
Convert config files
Transform Docker Compose, Kubernetes manifests, or CI/CD configs between YAML and JSON for different tools.
Debug API payloads
Convert a JSON API response to YAML for easier reading of deeply nested structures.
Generate fixtures
Write test data in YAML for readability, then convert to JSON for use in application code.
Frequently asked questions
Short answers to the questions people usually have before using the tool.
Does this support all YAML features?+
It handles the most common YAML constructs: key-value pairs, nested objects, arrays, strings, numbers, booleans, and null. Advanced features like anchors and multi-line strings are not supported.
Why convert between YAML and JSON?+
YAML is popular for config files (Docker Compose, Kubernetes, CI/CD) while JSON is used by APIs and JavaScript. Converting between them saves manual rewriting.
Does this tool use any external libraries?+
No. The parser is built from scratch and runs entirely in your browser with zero dependencies.
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