Properties Viewer & Formatter
View, validate, sort, and format Java properties files in your browser with dotted-key tree inspection and download support.
Use this free Java properties file viewer and formatter to inspect, sort, and validate properties configuration files in your browser. Paste properties content or open a local file, then sort keys, detect duplicates, and navigate a dotted-key tree that reconstructs the logical namespace hierarchy. All processing is client-side with no file upload. Useful for Java and Spring Boot developers managing application.properties files, resource bundles, and key-value configuration files before deployment.