Convert JSON to YAML Online Free
Transform JSON data into clean, human-readable YAML format instantly in your browser. No server upload, no signup, no limits.
To convert JSON to YAML, drop your .json file onto the converter above. The conversion runs entirely in your browser using js-yaml, producing clean YAML output with proper indentation. Your data never leaves your device.
Convert JSON to YAML
Drop your JSON file here to convert it instantly
Drag & drop your .json file here, or click to browse
Your file never leaves your browser
JSON vs YAML: Format Comparison
Key differences between the two formats
When to Convert
Common scenarios where this conversion is useful
Kubernetes and Docker configuration
Kubernetes manifests, Docker Compose files, and Helm charts all use YAML. Convert your JSON configuration to YAML for deployment workflows.
CI/CD pipeline configuration
GitHub Actions, GitLab CI, CircleCI, and Travis CI all use YAML for pipeline definitions. Convert JSON configs to the required YAML format.
Ansible playbooks and infrastructure as code
Ansible uses YAML for playbooks and inventory files. Convert structured JSON data into YAML for automation workflows.
Improving configuration readability
YAML is easier to read and edit by hand than JSON, especially for deeply nested configurations. Convert JSON configs to YAML for human-maintained files.
How to Convert JSON to YAML
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1
Upload your JSON file
Drag and drop your .json file onto the converter, or click to browse your files. Files of any size are supported.
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2
Automatic conversion
Your JSON is parsed and converted to properly indented YAML instantly in your browser. No data is sent to any server.
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Download the YAML result
Click Download to save your converted .yaml file. The output uses standard 2-space indentation and clean formatting.
Frequently Asked Questions
Yes. All JSON data types map directly to YAML equivalents, so no data is lost during conversion. The output YAML can be converted back to identical JSON.
Yes. Deeply nested objects and arrays are converted to properly indented YAML with correct nesting levels. There is no depth limit.
No. The entire conversion happens in your browser using JavaScript. Your JSON data never leaves your device, making it safe for sensitive configuration files.
Standard JSON does not support comments. If your file uses JSONC (JSON with comments), the comments will be stripped during parsing. The resulting YAML supports comments, so you can add them after conversion.
The converter produces YAML with 2-space indentation, which is the most common convention used by Kubernetes, Docker Compose, and other tools.
JSON arrays are converted to YAML sequences using the dash (-) syntax, with each element on its own line. Nested arrays are properly indented.
Yes. Since the conversion runs in your browser, file size is limited only by your device's available memory. Files up to hundreds of megabytes work well on modern devices.
Yes. The YAML output preserves the original key order from your JSON file, which is important for configuration files where order matters.
Strings containing special YAML characters (colons, hashes, brackets) are automatically quoted in the output to prevent parsing issues.
Yes, completely free with no limits on file size or number of conversions. No account required.
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