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About YAML to JSON & JSON to YAML Converter
YAML to JSON Converter enables instant, private bidirectional transformation between YAML and JSON configuration formats.
All parsing and serialization runs locally in your browser using the standard YAML specification parser with zero external network requests.
How to use this tool
- 1Paste YAML or JSON data into the input editor.
- 2Select conversion mode (YAML → JSON, JSON → YAML, or Auto-detect).
- 3Adjust indentation spaces (2 or 4) and optionally enable alphabetical key sorting.
- 4Inspect validation status, syntax errors, and copy the formatted converted output.
Understanding the result
YAML is widely used for human-readable configuration (Kubernetes, GitHub Actions, Docker Compose, Ansible).
JSON is the standard format for web APIs, serialization, and database document storage.
Important limitations
- YAML circular references and custom application tags (!include, !Ref) are not serialized into standard JSON.
- Undefined values and functions cannot be represented in standard JSON or YAML.
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Frequently asked questions
Is my configuration data uploaded to any server?
No. All conversion is executed purely client-side in your web browser.
Does the converter validate syntax?
Yes. Syntax errors are caught and surfaced with descriptive error messages.
Can it sort object keys?
Yes. Enabling alphabetical key sorting reorganizes object keys recursively.
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