DevToolKit

YAML Prettify & Validator

Industrial-grade YAML beautifier with multi-document support, recursive key sorting, and anchor resolution.

Complexity: Moderate
Documents:2
Unique Keys:36
Depth:8
Schema:YAML 1.2

YAML Settings

80
Remove whitespace
Recursive sorting
Inline & reference data
Multi-Document Mode

Detected --- separators will be preserved, and each document will be formatted individually.

RAW YAML / JSON
Prettified
apiVersion: apps/v1
kind: Deployment
metadata:
  name: api-service
  labels:
    app: backend
    environment: production
spec:
  replicas: 3
  selector:
    matchLabels:
      app: backend
  template:
    metadata:
      labels:
        app: backend
    spec:
      containers:
        - name: api-server
          image: node:20-alpine
          ports:
            - containerPort: 3000
          env:
            - name: DATABASE_URL
              value: postgres://user:pass@db:5432/main
---
apiVersion: v1
kind: Service
metadata:
  name: api-lb
spec:
  type: LoadBalancer
  selector:
    app: backend
  ports:
    - port: 80
      targetPort: 3000
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How to Use

Cleaning and validating your YAML configuration is fast and visual with our professional editor:

  1. Paste Source: Enter your YAML or JSON data into the RAW YAML input box on the left.
  2. Configure Layout: Use the sidebar to set Indentation, normalize Quotes, and set a custom Line Width.
  3. Optimize Content: Toggle Alphabetize Keys to normalize your manifest, or Resolve Anchors to expand references.
  4. Multi-Document: Paste multiple documents separated by ---; our tool will format each one individually.
  5. Export: Use the copy icon or download button to get your clean, optimized YAML.

About This Tool

Configuration Engineering Grade

DevToolkit YAML Prettify is designed for modern DevOps and SRE workflows. Unlike basic formatters that break when encountering complex anchors or multi-document streams, our utility handles advanced YAML 1.2 features with mathematical precision, ensuring your Kubernetes manifests, CI/CD pipelines, and cloud configs remain valid and readable.

Why Use This Tool

Why use our tool?

Privacy and structural integrity. Formatting sensitive configuration files (like environment variables or credentials) should never happen on a remote server. Our tool runs 100% client-side, ensuring your proprietary configuration data never leaves your browser memory while providing IDE-level syntax highlighting and validation.

FAQ

What is YAML Prettifying?
YAML prettifying is the process of normalizing indentation and whitespace in a YAML document to make it readable and compliant with specific style guides, without changing the underlying data structure.
Does this tool support multiple YAML documents?
Yes. Our engine identifies '---' separators and formats each document in the stream individually while preserving the separators.
Can I sort YAML keys alphabetically?
Absolutely. Toggle the 'Alphabetize Keys' option in the sidebar to recursively sort all object properties across the entire document.
Are my configuration files safe?
Yes. All processing occurs 100% client-side in your browser. Your sensitive configuration data, secrets, or manifests are never uploaded to our servers.
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