JSON to YAML Converter
Paste JSON or YAML, pick a direction, and see the converted result immediately — useful for editing Kubernetes manifests, CI config, or API responses in whichever format you're more comfortable with.
Overview
JSON and YAML describe the same kind of data — nested objects, arrays, strings, numbers, booleans — but different tools default to different formats. Kubernetes manifests and CI pipelines are usually YAML for readability, while API responses and most JavaScript config are JSON. This tool converts between the two in either direction, so you don't need to hand-translate indentation-based YAML into bracketed JSON or the other way around.
Both directions validate as they convert: invalid JSON or invalid YAML is reported with a specific error message instead of a partial or guessed result, the same way this tool's JSON Formatter counterpart handles malformed input.
Examples
JSON to YAML
{"name": "Adikya", "active": true, "tags": ["dev", "tools"]}
name: Adikya active: true tags: - dev - tools
YAML to JSON
name: Adikya active: true tags: - dev - tools
{
"name": "Adikya",
"active": true,
"tags": [
"dev",
"tools"
]
}
How It Works
- Paste your JSON or YAML into the input box.
- Choose the direction: JSON to YAML, or YAML to JSON.
- Click Convert to see the result — switch direction at any time without losing your input.
Use Cases
Editing a Kubernetes manifest or CI config
Convert a YAML file to JSON to check its structure with tools that expect JSON, or convert JSON back to YAML for a config file that expects it.
Reading an API response as YAML
Some engineers find deeply nested data easier to scan in YAML's indentation-based layout than in JSON's brackets and quotes — convert a response body over to skim it faster.
Tips
- YAML supports comments (#) and JSON doesn't — converting YAML to JSON silently drops any comments in the source.
- If your YAML has multiple documents separated by `---`, only the first document is converted.
FAQ
No. Conversion happens entirely in your browser using JavaScript — nothing you paste ever leaves your device.
The tool shows a specific error message, including a line and column when available, instead of guessing at a fix or showing partial output.
Anchors and aliases are understood when converting YAML to JSON, since JSON.stringify simply writes out the resolved value. Converting JSON to YAML never generates anchors, since JSON has no way to express repeated references in the first place.
No, only the first document in a multi-document YAML file is converted.