JSON to YAML converter
Paste JSON and get YAML ready for Docker Compose, Kubernetes or GitHub Actions files. The conversion runs in your browser and never sends your data to a server.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Enter json text, indentation and sort keys alphabetically.
- The result appears straight away and updates as you edit.
- Copy the result, or copy a link that keeps the same values to share it.
How it is calculated
The JSON is read per RFC 8259, then every object becomes "key: value" lines and every array becomes lines starting with a dash. Any string that could be read as a number, boolean, null or date is quoted, and multi-line text becomes a | block with the - or + chomping indicator so it reads back unchanged.
Example
Inputs: Indentation = 2 spaces, Sort keys alphabetically = no. Result: YAML: app: toolsahla version: "2.1.0" port: 8080 debug: false languages: - ar - en database: host: localhost user: admin timeout: 30 .
{
"app": "toolsahla",
"version": "2.1.0",
"port": 8080,
"debug": false,
"languages": ["ar", "en"],
"database": {
"host": "localhost",
"user": "admin",
"timeout": 30
}
}app: toolsahla version: "2.1.0" port: 8080 debug: false languages: - ar - en database: host: localhost user: admin timeout: 30
Limits and caveats
- Key order follows the JSON unless you choose alphabetical sorting.
- JSON does not tell 1 from 1.0, so both are written as 1.
Questions about this tool
Why are "yes" and "01234" in quotes?
Some YAML readers treat yes as a boolean and 01234 as a number. Quoting keeps them as text in every reader.
Does it handle Arabic text?
Yes. Arabic letters are written as they are, since YAML is UTF-8.
Is the output valid for Kubernetes files?
Yes, it is standard YAML indented with spaces only. Just make sure the JSON structure matches what the file expects.