Does it support anchors / aliases?

No — this is a pragmatic parser. Use js-yaml server-side for full spec coverage.

Stripped. YAML comments don't map to JSON anyway.

YAML to JSON Converter

Convert hand-written YAML (Kubernetes, GitHub Actions, docker-compose) to JSON.

YAML input

JSON output

{
  "name": "my-service",
  "version": 1,
  "replicas": 3,
  "features": [
    "auth",
    "metrics",
    "cache"
  ],
  "resources": {
    "cpu": "500m",
    "memory": "512Mi"
  }
}

Runs entirely in your browser — nothing you paste is sent to a server.

About this tool

Covers the 90% of YAML you write by hand — nested maps, dash lists, quoted strings, booleans, and numbers. For adversarial YAML with anchors and merge keys, use a full parser server-side.

How it works

Paste YAML — indentation defines structure.
The parser normalises the document, then walks it into JSON.
Output is pretty-printed with 2-space indent.

When to use it

Feeding a YAML config into a tool that only understands JSON.
Diffing a GitHub Actions workflow structurally.
Extracting a subset of a Kubernetes manifest.

FAQs

Related resources

Related workflows

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