YAML to JSON Converter

Paste your YAML on the left, get JSON on the right. Fast, private, and entirely in your browser.

Keyboard shortcuts: Ctrl+Enter convert · Ctrl+Shift+C copy output

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How to Convert YAML to JSON
  1. Paste or type your YAML into the input panel on the left.
  2. The converter automatically parses your YAML and displays the equivalent JSON on the right in real time.
  3. If your YAML contains syntax errors, a descriptive error message appears below the input panel so you can fix it quickly.
  4. Click "Copy JSON" to copy the output to your clipboard, or toggle between pretty-printed and minified JSON.
  5. Use the "Sample" button to load an example Kubernetes Deployment manifest and see the converter in action.
What is YAML?
YAML (YAML Ain't Markup Language) is a human-readable data serialization format commonly used for configuration files, infrastructure-as-code tools like Kubernetes and Ansible, and CI/CD pipelines. Its indentation-based syntax makes it easy to read and write, but it can be tricky to convert to other formats manually.
What is JSON?
JSON (JavaScript Object Notation) is a lightweight data-interchange format that is easy for machines to parse and generate. It is the standard format for web APIs, configuration in many programming languages, and data storage. Converting YAML to JSON is useful when you need to pass configuration data to tools or services that expect JSON input.