JSON to YAML Converter — Free Online JSON to YAML
Convert JSON to YAML online instantly. Free, validated, no signup.
Tool Interface
JSON → YAML
How to use
- Paste JSON into the input box or upload a .json file.
- Choose the indent size and press Convert to YAML.
- Copy the YAML or download it as a .yaml file.
- Invalid JSON is reported with the exact line and column of the error.
100% private — conversion runs in your browser with the open-source js-yaml library. Nothing is uploaded or stored.
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About This Tool
Convert JSON to Clean YAML
The JSON to YAML Converter turns JSON data into valid, readable YAML. Paste your JSON or upload a .json file, choose 2 or 4 space indentation, and press Convert to YAML. Copy the result or download it as a .yaml file.
Invalid JSON is reported with the exact line and column of the error, so broken input is easy to fix. Conversion runs 100 percent in your browser with the open source js-yaml library. Nothing is uploaded or stored. The tool is free and needs no signup.
How to Use the JSON to YAML Converter
Three steps to clean YAML.
- Provide your JSON: Paste JSON into the input box or upload a .json file. Click Sample to try it.
- Choose the indent: Pick 2 spaces or 4 spaces.
- Convert and save: Press Convert to YAML, then Copy the YAML or Download the .yaml file.
Why Convert to YAML
- Human readable: YAML strips the braces and quotes for cleaner config files.
- Config standard: Docker Compose, Kubernetes and CI pipelines all speak YAML.
- Comments allowed: Unlike JSON, YAML supports comments natively.
- Error guidance: Exact line and column reporting pinpoints bad JSON fast.
Key Features
- Valid YAML output: Properly formatted via the js-yaml library.
- Indent choice: 2 or 4 space indentation.
- File upload: Drop in a .json file directly.
- Download ready: Save the result as a .yaml file.
- Private by design: Everything runs in your browser. Nothing is uploaded or stored.
Frequently Asked Questions (FAQ)
Is the JSON to YAML Converter free? Yes. It is completely free with no signup.
What happens with invalid JSON? The tool reports the exact line and column of the error instead of failing silently.
Can I convert YAML back to JSON? Yes. Use the YAML to JSON converter linked in the tool.
Which indent should I choose? Two spaces is the most common convention. Some teams prefer four.
Are my files uploaded? No. Conversion runs entirely in your browser with js-yaml.
Does it handle nested data? Yes. Nested objects and arrays convert cleanly.
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