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Properties to YAML Converter

Convert flat .properties files into cleanly nested YAML. Reconstruct the logical hierarchy of your MuleSoft configurations with ease.

MuleSoft Properties YAML 100% Client-Side
About this tool ↑
Reverse conversion YAML to Properties
Output options
Output mode
Input: Properties
Live preview
Output: YAML
πŸ’‘ The tool converts dotted keys like app.db.host into nested YAML. Comment lines are retained at the top of the output when enabled.

How to Use the Properties to YAML Converter

Unflatten flat dotted property key-value configurations into nested hierarchical YAML in seconds.

Paste Properties Content

Paste flat dotted properties straight into the input editor, or upload a .properties file.

Confirm Hierarchy

Review the keys to make sure they are dot-separated (e.g. app.db.port) to allow nested parsing.

Convert Instantly

The parser runs live as you edit or type, building cleanly nested levels and indentation instantly.

Copy or Download

Copy the generated YAML output to your clipboard, or download it as a .yaml file for your project.

Frequently Asked Questions

Why convert Properties to YAML?
YAML is much more readable for complex configurations. When migrating flat .properties files to .yaml, this tool saves time by automatically building the nested levels.
Does it handle complex keys?
Yes, it handles any number of nested levels. a.b.c.d=value will result in a 4-level deep YAML structure.
Is my data secure?
Absolutely. Like all tools on Upendra.dev, the conversion happens entirely in your browser. No data ever leaves your machine.
Can I use comments in my properties file?
Comment lines beginning with # or ! can be retained at the top of the generated YAML. Their original position relative to properties is not retained.
Does this tool support lists or arrays?
Auto mode recognizes bracketed and dotted numeric indexes and converts them to YAML sequences. Use the dropdown to force sequences or preserve indexed keys.
How are property value types inferred?
MuleSoft-safe mode converts booleans and numbers to YAML scalar types. Null-like values are passed through as text for developers to handle manually. Text mode preserves every value.

From the Blog

Deep-dives on YAML, Properties, and MuleSoft configuration patterns.

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