Java implementation of ua-parser
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ua_parser Java Library

This is the Java implementation of ua-parser. The implementation uses the shared regex patterns and overrides from regexes.yaml.


mvn package


import ua_parser.Parser;
import ua_parser.Client;


  String uaString = "Mozilla/5.0 (iPhone; CPU iPhone OS 5_1_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9B206 Safari/7534.48.3";

  Parser uaParser = new Parser();
  Client c = uaParser.parse(uaString);

  System.out.println(; // => "Mobile Safari"
  System.out.println(c.userAgent.major);  // => "5"
  System.out.println(c.userAgent.minor);  // => "1"

  System.out.println(;        // => "iOS"
  System.out.println(c.os.major);         // => "5"
  System.out.println(c.os.minor);         // => "1"

  System.out.println(;    // => "iPhone"

Publish to Sonatype OSSRH and Maven Central Repository

Create a ~/.m2/settings.xml file with the following contents:



On Mac OS X, the gpg.executable property should be gpg2.

Instructions for Build/Deploy/Release

  1. bump pom.xml version to non-snapshot version
  2. commit and push to github
  3. mvn clean deploy -P ossrh
  4. log in to Sonatype OSSRH
  5. click Staging Repositories
  6. find the release comgithubua-parser-*
  7. verify the contents are ok
  8. click Close (wait for validation steps under the Activity tab to complete)
  9. click Release
  10. bump pom.xml version to next snapshot version
  11. commit and push to GitHub

Additional Resources for Deploying to Sonatype OSSRH and Maven Central Repository

Deploying to Sonatype OSSRH using Maven
Releasing the artifact in Sonatype OSSRH

Sonatype OSSRH is synced with Maven Central Repository so the artifacts will appear in Maven Central Repo automatically shortly after releasing.


Based on the python implementation by Lindsey Simon and using agent data from BrowserScope