codenameone/CodenameOne

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

1860 stars · 434 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Codename One is an open-source framework that compiles a single Java (or Kotlin) codebase into native applications for iOS, Android, desktop, web, watches, TV, and vehicles. It ships a custom-rendered UI toolkit that the platform cannot silently restyle, with native interfaces and peer components for direct platform SDK access.

Use cases

• build a native mobile app from one Java codebase
• cross-platform app that runs on iOS and Android with shared UI
• write once run anywhere mobile development in Java or Kotlin
• deploy a Java app to desktop, web, and wearables
• custom-rendered UI that survives OS updates
• access native platform SDKs from a shared codebase
• build a PWA or JavaScript web app from Java

When to choose

• your team knows Java or Kotlin and wants to target mobile without learning Swift or Kotlin natively
• you need one codebase across phones, desktops, browsers, and watches
• you want pixel-level control over UI theming with CSS and custom rendering
• you need to drop into native SDKs via native interfaces when required

When to avoid

• you need fully native platform look-and-feel with standard OS widgets
• you prefer Swift, Kotlin, or React Native ecosystems
• you cannot rely on cloud build services for iOS builds
• you need deep integration with platform-specific UI paradigms

Facets

framework · maturity active

mobile-framework ui-components compiler graphics css-framework testing build-tool mobile-development cross-platform web-development desktop-applications windows jvm cross-platform browser java kotlin write-once-run-anywhere native-apps aot-compilation wearables pwa maven simulator cloud-builds android ios macos linux web-server

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markdown · JSON · MCP: product_card(name="codenameone/CodenameOne")