How do I convert a YAML file to JSON?

Paste your YAML text into the input box or click "Upload YAML" to pick a .yaml or .yml file. The tool parses the YAML structure and outputs formatted JSON instantly.

Does it support multi-document YAML files separated by "---"?

Yes. With "Parse as JSON Array" selected, each document separated by "---" becomes an element in a top-level JSON array. You can also choose "First document only" if you only need the primary document.

How does it help debug YAML syntax errors?

If your YAML contains an indentation mistake, unclosed bracket, or invalid character, the tool highlights the exact line and column number where the error occurred.

Can I format the JSON output with custom indentation or minification?

Yes. Choose between 2-space indentation, 4-space indentation, tab indentation, or minified compact JSON.

Is my YAML data sent to any server?

No. All parsing and conversion are handled entirely in your local browser window. None of your infrastructure configurations or secrets ever leave your device.

YAML to JSON

Convert YAML and YML files to formatted JSON. Supports multi-document streams and syntax error location.

Output Style

Multi-Document (---)

Switch to JSON to YAML

Input YAML701 characters

apiVersion: apps/v1
kind: Deployment
metadata:
  name: production-api
  labels:
    app: gateway
    tier: backend
    environment: production
spec:
  replicas: 3
  selector:
    matchLabels:
      app: gateway
  template:
    metadata:
      labels:
        app: gateway
    spec:
      containers:
        - name: server
          image: node:20-alpine
          ports:
            - containerPort: 3000
          env:
            - name: NODE_ENV
              value: production
            - name: PORT
              value: "3000"
          resources:
            limits:
              memory: 512Mi
              cpu: 500m
            requests:
              memory: 256Mi
              cpu: 250m

Output JSON

1 doc

Ready

{
  "apiVersion": "apps/v1",
  "kind": "Deployment",
  "metadata": {
    "name": "production-api",
    "labels": {
      "app": "gateway",
      "tier": "backend",
      "environment": "production"
    }
  },
  "spec": {
    "replicas": 3,
    "selector": {
      "matchLabels": {
        "app": "gateway"
      }
    },
    "template": {
      "metadata": {
        "labels": {
          "app": "gateway"
        }
      },
      "spec": {
        "containers": [
          {
            "name": "server",
            "image": "node:20-alpine",
            "ports": [
              {
                "containerPort": 3000
              }
            ],
            "env": [
              {
                "name": "NODE_ENV",
                "value": "production"
              },
              {
                "name": "PORT",
                "value": "3000"
              }
            ],
            "resources": {
              "limits": {
                "memory": "512Mi",
                "cpu": "500m"
              },
              "requests": {
                "memory": "256Mi",
                "cpu": "250m"
              }
            }
          }
        ]
      }
    }
  }
}

View as a tree

Fast In-Browser YAML to JSON Conversion

Converting YAML configuration into JSON is essential when sending manifests to REST APIs, processing Docker or Kubernetes specs in JavaScript, or validating structured schema data. The YAML to JSON Converter provides instantaneous conversion with clear syntax error reporting.

Key Capabilities

Multi-Document Stream Parsing

Parse multi-part YAML manifests containing multiple --- sections into structured JSON arrays.

Accurate Error Locators

Pinpoints exact line numbers and syntax issues if your YAML indentation is misaligned.

Formatting & Minification

Output standard 2-space indented JSON for readability or 1-line minified JSON for compact transmission.

Direct JSON Viewer Handoff

Inspect large converted YAML outputs in an interactive collapsible tree with one click using "View as a tree".

Related Data & Config Tools

Frequently Asked Questions

How do I convert a YAML file to JSON?: Paste your YAML text into the input box or click "Upload YAML" to pick a .yaml or .yml file. The tool parses the YAML structure and outputs formatted JSON instantly.
Does it support multi-document YAML files separated by "---"?: Yes. With "Parse as JSON Array" selected, each document separated by "---" becomes an element in a top-level JSON array. You can also choose "First document only" if you only need the primary document.
How does it help debug YAML syntax errors?: If your YAML contains an indentation mistake, unclosed bracket, or invalid character, the tool highlights the exact line and column number where the error occurred.
Can I format the JSON output with custom indentation or minification?: Yes. Choose between 2-space indentation, 4-space indentation, tab indentation, or minified compact JSON.
Is my YAML data sent to any server?: No. All parsing and conversion are handled entirely in your local browser window. None of your infrastructure configurations or secrets ever leave your device.