Converter Tools
JSON to YAML Converter
Convert valid JSON into readable YAML for configuration files and documentation.
Processed locally — your data never leaves this browser.
Example input and output
Object to YAML
{"name":"Lumarc","private":true}name: Lumarc
private: true
How to use JSON to YAML Converter
Paste or enter your json text, adjust any options, then run the tool. The result appears in the output panel where you can copy or download it.
Related guides
What this tool does
The JSON to YAML Converter parses strict JSON and writes equivalent YAML so API examples, fixtures and configuration snippets are easier to read in YAML-based tools. It is free to use and designed for technical workflows where pasted data should stay private.
Common use cases
- Move API examples into docs
- Prepare YAML config snippets
- Compare JSON and YAML representations
Privacy and security
Processed locally — your data never leaves this browser. Lumarc DevTools does not include a backend, account system or hidden analytics in this initial release.
Limitations
- JSON dates remain strings because JSON has no native date type.
Frequently asked questions
Can this convert JSON with comments?
No. The input must be strict JSON before it can be converted to YAML.