Properties to YAML Converter
Convert Java / Spring .properties files into nested YAML.
About Properties to YAML Converter
Properties to YAML Converter transforms a Java/Spring .properties file into nested YAML, expanding dotted keys such as spring.datasource.url into a proper hierarchy.
How to use Properties to YAML Converter
- 1Paste or type your data into the input box above (a sample is pre-filled so you can try it instantly).
- 2Adjust any options on offer — delimiter, columns, formatting and so on — to match what you need.
- 3Conversion happens instantly as you type; review the result in the output panel.
- 4Click Copy to grab the output or Download to save it as a file — Properties to YAML Converter keeps everything on your device.
Why use Properties to YAML Converter?
- ✓Migrating Spring Boot config from .properties to application.yml
- ✓Reading a Java properties file as structured YAML
- ✓Cleaning up flat dotted config into a tree
- ✓100% free with no sign-up, no watermark and no usage limits
- ✓Runs entirely in your browser — your data is never uploaded or stored
- ✓Works offline once loaded, with instant results and one-click copy or download
Frequently asked questions
How are dotted keys expanded?+
Keys like spring.datasource.url are split on dots into nested YAML maps, producing the hierarchical structure Spring's YAML loader expects.
Are comments kept?+
Comment lines starting with # or ! are ignored, and both = and : separators are supported.
Is it free to use?+
Yes — it is completely free with no sign-up, no account and no usage limits. There is no watermark and no paywall, so you can process as many files as you like.
Is my data private and secure?+
Yes. This tool runs entirely in your browser using client-side JavaScript — your data is never uploaded to a server, stored or logged. Once the page has loaded you can even use it offline, which makes it safe for confidential or proprietary files.
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