Java Properties to YAML Converter

Convert any .properties file into clean, indented YAML. Dotted property keys are reconstructed into nested YAML structure. Array indices in bracket notation (key[0]) are automatically detected and converted to YAML list items.

Use Cases

• Spring Boot Migration — Convert application.properties to application.yml
• Config Modernization — Move from legacy Java property files to YAML
• Cross-Platform Config — Bridge Java configuration into YAML-native toolchains
• Documentation — Generate readable YAML from flat property files

Example

Input (Java Properties):

app.name=MyApp
app.version=1.0.0
app.servers[0]=192.168.1.1
app.servers[1]=192.168.1.2
app.database.url=jdbc:postgresql://localhost:5432/mydb
app.database.pool.maxActive=10

Output (YAML):

app:
  name: MyApp
  version: "1.0.0"
  servers:
    - 192.168.1.1
    - 192.168.1.2
  database:
    url: jdbc:postgresql://localhost:5432/mydb
    pool:
      maxActive: "10"