Convert Properties to JSON

How to use Convert Properties to JSON

1. 1. Paste your .properties file. Paste the contents of a Java .properties file, including any comment lines starting with a hash, which the parser skips over while reading the key=value pairs.
2. 2. Set nesting and type parsing. Turn on Nest dotted keys to rebuild dotted property names like db.host into nested JSON objects, and Parse numbers and booleans to convert values like 5432 or true into their real JSON types.
3. 3. Pick the output indent and copy. Choose 2 spaces, 4 spaces or tabs for the Indent setting, then copy the resulting JSON and use it in a Node service, a config validator, or any JSON-based tool.

When to use Convert Properties to JSON

Convert Properties to JSON turns a flat Java .properties file into a JSON object, rebuilding dotted keys into nested structure when you want it. It is for bringing Java-style configuration into JavaScript, Python or any tooling that expects JSON rather than key=value pairs.

• Porting a Spring Boot config into a Node service. You are migrating settings from an application.properties file used by a Java service into a Node application that reads JSON config instead.
• Reading legacy Java config in a modern build pipeline. A CI pipeline needs to inspect values from an old .properties file as part of a JSON-based deployment manifest, and converting it once gives the pipeline usable JSON.
• Validating a properties file against a JSON schema. You want to run an existing .properties file through a JSON Schema validator to catch missing or malformed settings, which requires the file in JSON form first.
• Comparing config across two frameworks during a migration. You are moving between two frameworks, one using properties files and one using JSON, and want to diff the same settings side by side in the same format.

Examples

db.host=localhost
db.port=5432
# comment
debug=true

{
  "db": {
    "host": "localhost",
    "port": 5432
  },
  "debug": true
}

About the Convert Properties to JSON tool

Frequently asked questions