Convert YAML to Properties

Convert structured YAML into flat .properties format for config files or key-value exports. Fast, browser-based YAML to Properties converter.

Paste your input above or import a file below.
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Supported file types: .yaml, .yml, .txt, .json, .md, .ini, .xml
Total characters: 0
Options
Flatten arrays
Use dot notation
Maximize output

How to Use:

  • Paste your YAML into the input box or use “Choose File” to import .yaml, .json, .ini, or .xml files.
  • Adjust options like Flatten arrays (break arrays into [index]) and Use dot notation (e.g. parent.child.key) using the toggles.
  • Enable Maximize output if you want a larger view of the result.
  • The conversion runs live no need to click unless you’re clearing or exporting.
  • Use “Copy Output” to copy results to clipboard or “Export to File” to save as .properties.
  • “Clear All” resets everything, including toggles and file name display.

What Convert YAML to Properties can do:

This tool flattens complex YAML into Java-style .properties format, optionally using dot notation for nested keys. Arrays can be split into indexed entries like key[0], key[1], or left joined with commas. It handles YAML structures like objects, nested fields, booleans, numbers, and strings. You can customize how arrays and key paths are represented. A character counter tracks your output size in real time, and you’ll see a flashing effect whenever the output updates.

Example:

Before:
database:
  user: admin
  password: secret
  options:
    ssl: true
    retries: 3

After:
database.user=admin
database.password=secret
database.options.ssl=true
database.options.retries=3

Common Use Cases:

Great for developers or DevOps folks converting config files for Spring Boot, Java apps, Docker ENV injection, or key-value-based systems. Helps migrate structured data to simple properties for .env, deployment, or backward compatibility.

Useful Tools & Suggestions:

If you’re converting YAML to Properties, try Flatten YAML first to avoid nested keys getting lost in translation. And once you’re done, you can always Convert Properties to JSON if you need to keep the data flowing between formats.

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