Android Package Name Generator & Validator

Generate standards-compliant reverse-domain Android application IDs (` applicationId `) and validate custom package strings instantly.

TLD / Domain Type:

Organization / Company:

App / Project Name:

Module / Subdomain:

Generated Package ID & Validation: Ready

Awaiting input...

Gradle & Manifest Snippets:

Awaiting input...

Android Package Naming Rules

Reverse Domain Format

Android convention dictates starting with a reverse domain name (e.g., `com.company.app`) to ensure unique namespace identification across Google Play.

Character Constraints

Package names must consist of letters, numbers, and underscores only. Each segment must start with a letter and avoid Java reserved keywords.

Application ID vs Namespace

In modern AGP (Android Gradle Plugin), `applicationId` specifies your unique Play Store ID, while `namespace` controls your R class and source package folder paths.

Frequently Asked Questions (FAQ)

Changing your `applicationId` after publishing on Google Play is extremely difficult because Play treats it as an entirely new application. Choose a stable identifier before initial release.

No. Hyphens (`-`) are invalid characters in Java package identifiers and Android package names. Use alphanumeric lowercase strings separated by periods.