YAML to JSON Converter
Convert YAML to JSON and JSON to YAML in one click — fully in the browser.
Two-way conversion between YAML and JSON. Paste either format, pick a direction, and get the equivalent output instantly with proper escaping, indentation and validation. Useful when migrating config files between tools that prefer different formats.
Common use cases
- Convert OpenAPI YAML specs to JSON (or vice versa) for tooling compatibility
- Migrate Kubernetes manifests between YAML and JSON forms
- Generate JSON test fixtures from human-friendly YAML inputs
- Translate config samples between docs that use different formats
Frequently asked questions
Is the conversion lossless?▾
For all common data types (strings, numbers, booleans, arrays, objects, null) yes. YAML-specific features like anchors and tags are resolved during parsing and won't round-trip identically.
Why does my JSON output look different from the YAML?▾
JSON requires keys to be quoted strings and disallows comments. The data is identical; only formatting differs.
Does it handle multi-document YAML?▾
Single-document YAML only. For multi-document streams (separated by ---), convert one document at a time.
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