How to use JSON to YAML
YAML is often easier for people to edit in deployment and automation files, while JSON is common at API boundaries. This converter parses the JSON first and emits readable YAML without aliases or references.
Objects, arrays, numbers, booleans and null values are represented with corresponding YAML types. Review quoted strings when downstream YAML parsers use different schema rules.
A reliable workflow
- Paste valid JSON
- Convert and inspect indentation, arrays and quoted scalar values
- Validate the YAML with the target application before replacing configuration
Worked example
Convert the included service configuration to YAML
{"service":"web","replicas":3,"ports":[80,443],"environment":{"NODE_ENV":"production"}}The object becomes an indented mapping, ports become a sequence and replicas remains numeric. No comments appear because the JSON source contains no comment information
When this tool helps
- Draft deployment configuration from an API example
- Translate package data into human-edited settings
- Compare JSON and YAML representations during documentation
Accuracy and safety notes
- Comments cannot be created because JSON contains no comment information
- A round trip may change formatting even when the parsed data remains equivalent
Frequently asked questions
Does XXF upload or store my data?+
No. The conversion runs locally in your browser. Your input is not sent to XXF, stored on a server or used for training.
Are JSON data types preserved?+
Yes. Objects, arrays, strings, numbers, booleans and null values are represented with matching YAML types.