YAML to JSON Converter
Convert YAML to JSON instantly in your browser.
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About This Tool
Paste YAML configuration files, Kubernetes manifests, or CI/CD pipelines and get clean, formatted JSON output. Handles nested objects, arrays, multiline strings, anchors, and YAML-specific types. Ideal for developers bridging DevOps configs with APIs. Runs entirely in your browser — your data never leaves your device.
What you provide
A YAML string to convert to JSON
What you get
Formatted JSON output with configurable indentation
How to Use
- Paste your YAML into the input area.
- Click Convert to get the JSON output.
- Copy the result or adjust indentation as needed.
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Frequently Asked Questions
- What YAML features does this converter support?
- The converter handles nested objects, arrays with dash syntax, block scalars (| and >), quoted and unquoted strings, YAML booleans (true/false/yes/no), null values, and inline collections. It follows YAML 1.2 parsing rules.
- How does YAML handle data types differently from JSON?
- YAML interprets unquoted values like yes, no, on, off as booleans and bare numbers as numeric types. JSON requires explicit syntax: strings must be quoted, booleans are only true/false, and there is no implicit type coercion.
- Is this tool free to use?
- Yes. This tool runs entirely in your browser with no account required. Your data never leaves your device.
- Can I convert JSON back to YAML?
- Yes. Toggle the direction selector to switch between YAML-to-JSON and JSON-to-YAML modes. You can also use the swap button to move your output directly into the input field.
- Does this work on mobile?
- Yes. The tool is fully responsive and works on any device with a modern browser. You can paste YAML from other apps, convert it, and copy the JSON result.