YAML to JSON

Convert YAML configurations to formatted or minified JSON with instant validation.

JSON Indentation:

YAML Input369 chars

Converted JSON538 chars

{
  "version": "3.8",
  "services": {
    "web": {
      "image": "nginx:alpine",
      "ports": [
        "80:80",
        "443:443"
      ],
      "environment": {
        "NODE_ENV": "production",
        "ENABLE_SSL": true
      },
      "restart": "always"
    },
    "database": {
      "image": "postgres:16",
      "volumes": [
        "db_data:/var/lib/postgresql/data"
      ],
      "environment": {
        "POSTGRES_DB": "devtools",
        "POSTGRES_USER": "admin"
      }
    }
  },
  "volumes": {
    "db_data": null
  }
}

How to use YAML to JSON

1Paste or type your valid YAML markup into the left 'YAML Input' editor.
2Choose your target JSON indentation preference (2 Spaces, 4 Spaces, or Minified).
3View the parsed and validated JSON output updated automatically in the right editor.
4Click 'Copy JSON' to export the output to your clipboard, or click 'Download .json' to save the file locally.

Key Features & Highlights

•Robust YAML 1.2 Parsing: Powered by the industry-standard js-yaml parser with full support for mappings, sequences, and scalars.
•Comprehensive Type Safety: Reliably parses strings, integers, floats, booleans, dates, null values, and multi-line literal blocks.
•Customizable JSON Formatting: Easily toggle between 2-space, 4-space, or compact minified single-line JSON output.
•Syntax Diagnostics: Clear line-number error highlights when input YAML contains improper indentations or invalid tokens.
•100% Client-Side Privacy: Your Kubernetes manifests, CI/CD pipelines, and configuration keys never leave your local browser.

How YAML to JSON Conversion Works

YAML (YAML Ain't Markup Language) is widely favored for human-readable configuration files, including Kubernetes manifests, GitHub Actions workflows, Docker Compose definitions, and Ansible playbooks. In contrast, JSON (JavaScript Object Notation) is the universal standard for web APIs, database storage, and programmatic data transfer.

Abstract Syntax Tree (AST) Translation

Converting YAML to JSON requires parsing the indentation-sensitive YAML text stream into an in-memory JavaScript Abstract Syntax Tree (AST). The BrivTools converter employs js-yaml to parse complex nested anchors, aliases, associative arrays, and folded blocks, then serializes the data using standard RFC 8259 JSON serialization.

Secure In-Browser Transformation

Configuration files often include environment variables, database hosts, and internal networking paths. Our converter executes completely inside your browser sandbox. No configurations, tokens, or credentials are ever sent across the network.

Frequently Asked Questions

What is the difference between YAML and JSON?

YAML is a human-friendly data serialization standard that relies on whitespace indentation instead of brackets and quotation marks. JSON is a strict, bracket-enclosed subset of JavaScript commonly used for web APIs and machine-to-machine data exchange.

Can I convert complex Kubernetes or Docker Compose YAML files?

Yes! BrivTools supports deeply nested objects, arrays of objects, multiline strings, booleans, and null values common in Kubernetes manifests and cloud configurations.

What happens if my YAML has an indentation syntax error?

The parser displays an intuitive error banner detailing the exact problem and approximate line location so you can fix formatting immediately.

Can I download the converted JSON file?

Yes, you can download the generated file as a standard `.json` document with a single click, or copy it directly to your clipboard.

Is any data uploaded to external servers?

No. All parsing and conversion are executed locally within your web browser using JavaScript. No payload data is ever transmitted across the internet.