YAML to JSON Converter
Convert YAML to JSON instantly. Paste any YAML config, document, or data file and get valid, pretty-printed JSON. Free online YAML to JSON converter.
Output will appear here
Press ⌘ Enter to convert
How It Works
- 1Paste your YAML document
- 2DevConvert parses it using a standards-compliant parser
- 3Get pretty-printed JSON output ready to copy or download
Examples
Input
name: Rohith role: developer active: true
Output
{
"name": "Rohith",
"role": "developer",
"active": true
}Input
server: host: 0.0.0.0 port: 8080 database: url: postgres://localhost/db
Output
{
"server": { "host": "0.0.0.0", "port": 8080 },
"database": { "url": "postgres://localhost/db" }
}Input
web:
image: nginx:alpine
ports:
- "80:80"
volumes:
- ./html:/usr/share/nginx/htmlOutput
{
"web": {
"image": "nginx:alpine",
"ports": ["80:80"],
"volumes": ["./html:/usr/share/nginx/html"]
}
}Frequently Asked Questions
What YAML features does this support?
DevConvert handles standard YAML: scalars, sequences, mappings, multi-document files, anchors, and aliases. Advanced YAML tags (!!binary, !!python) are not supported.
Do YAML comments carry over to JSON?
No. JSON does not support comments, so YAML comments are stripped during conversion.
Can I paste a GitHub Actions workflow and convert it?
Yes. GitHub Actions workflows are valid YAML and will convert to JSON correctly. Useful for inspecting complex nested structures.
What if my YAML uses anchors and aliases?
Anchors (&) and aliases (*) are resolved before conversion, so the resulting JSON will have the fully expanded values inline.