YAML to JSON Converter

Convert YAML configurations, Kubernetes manifests, and Docker files to clean JSON with 100% client-side privacy.

YAML SourceInput

JSON OutputGenerated

Converted successfully

1 lines|100% Client-Side

Understanding YAML vs JSON Data Interchange

While JSON (RFC 8259) is the universal standard for web APIs, YAML (YAML Ain't Markup Language) is widely preferred for human-edited configuration files, DevOps pipelines (GitHub Actions, GitLab CI), and container orchestration (Kubernetes, Docker Compose).

Because YAML 1.2 is a superset of JSON, converting YAML to JSON involves resolving YAML-specific language constructs such as block scalars, anchors, aliases, and explicit type tags into strict standard JSON types.

YAML to JSON Mapping Reference

YAML 1.2 Construct	YAML Example	Converted JSON Output
Key-Value Mapping	key: value	{"key": "value"}
Block Sequence	- item1 - item2	["item1", "item2"]
Literal Block Scalar	text: \| line 1 line 2	{"text": "line 1\nline 2"}
Boolean & Null	active: true deleted: null	{"active": true, "deleted": null}

FAQ

How does YAML to JSON conversion handle YAML anchors and aliases (& and *)?

The YAML engine fully resolves anchors and aliases during parsing, dereferencing all mapped structures into valid, self-contained JSON objects.

How are multi-line YAML block scalars (| and >) converted to JSON?

Literal block scalars (|) preserve exact newlines as JSON escape sequences (\n), while folded block scalars (>) fold single newlines into spaces according to the YAML 1.2 specification.

Can I convert JSON back to YAML?

Yes. The converter is fully bi-directional. Click the 'Swap' button or select 'JSON ➔ YAML' to convert in the opposite direction.

Is my YAML data sent over the network?

No. Conversion executes 100% locally in your web browser using client-side JavaScript.