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See changes in 3 seconds—even in large Android codebases.
Life is short, Jugg it!
Jugg is an open-source Android Studio plugin from the Tencent Music engineering team. It reuses the latest Gradle build, compiles only the current changes and their impact, and deploys the result to a device—small changes can typically become visible within 3 seconds.
Jugg only requires an IDE plugin; it does not modify Gradle scripts or require SDK integration. A Jugg Run Configuration coexists with the native App Run Configuration: select Jugg for incremental compilation and deployment, or switch back to the native App configuration at any time for the original Android Studio build flow. The two run completely independently. When a project change falls outside the incremental path, Jugg itself falls back to Gradle and establishes a new baseline.
Join the Jugg WeChat group to share usage experience and troubleshooting tips.
- Download the plugin from Releases, then install it in Android Studio (JetBrains Marketplace listing in progress).
- Open an Android project and wait for the Jugg Run Configuration to be created automatically.
- Select the Jugg Run Configuration and click Run. The first Run establishes the Gradle baseline; after that, edit source or resources and Run again for second-level bypass incremental compilation.
You can switch between Jugg and Android Run Configuration at any time—they run completely independently and do not interfere with each other.
See the Jugg Wiki Getting started for more.
Jugg keeps Gradle as the source of trusted build outputs while skipping unrelated Gradle work for day-to-day changes:
- Establish a baseline from the latest full Gradle build.
- Detect changes and impact across source, resources, dependencies, and class relationships.
- Compile only what is needed with Java, Kotlin, D8, and Jugg's incremental resource toolchain.
- Deploy safely through hot reload, hot fix, incremental APK update, or reinstallation; fall back to Gradle when required.
| Area | Supported capabilities |
|---|---|
| Source and resources | Java, Kotlin, mixed Java/Kotlin, Compose, KMP, Compose Multiplatform, res, assets, Manifest, native .so files |
| Android projects | DataBinding, ViewBinding, supported annotation processors, incremental dependency compilation, incremental builds for release variants, AabResGuard, custom compilers |
| Deployment | Hot reload, hot fix, incremental APKs, multiple APKs, multiple devices, Dynamic Feature, compatibility deployment, and failure recovery |
| Android Test | Application / Library Android Test, Test Results UI, and Logcat attribution |
| Automation | Jugg CLI, MCP, Agent Skills, build and deployment, device and runtime queries, UI automation, and remote diagnostics |
| Environment | Supported range |
|---|---|
| Android Studio | 2021 (Bumblebee) to present |
| IntelliJ IDEA | 2021.1.3 to 2025.1 Beta |
| Android Gradle Plugin | 3.4 to 9.1 |
| Gradle | 5.4.1 to 9.2.1 |
| Kotlin | 1.3 to 2.2 |
| Android | 8 to 16 |
See the Jugg Wiki compatibility reference for detailed requirements and behavior boundaries. Other versions that have not been fully verified may have minor functional issues—please file an issue if you encounter any.
The jugg-android-dev-loop Skill guides AI agents through edit -> compile -> deploy -> verify, while the jugg CLI exposes the same plugin runtime to terminals and scripts.
Installation: open any project, search for Install Jugg Skills in Search Everywhere to install.
jugg status
jugg compile
jugg deploySee the CLI guide and Agent Skills for supported clients, commands, and workflow boundaries.
Developed since 2021 and released internally in 2023, the same general-purpose implementation was used across WeSing (全民 K 歌), QQ Music, JOOX, WeSing, Kugou Music, Kugou Live, QQ Browser, Yangshipin, and other large Android codebases before becoming open source.
- 10+ large Android codebases
- 800,000+ incremental compilations
- 36,000+ hours of build waiting time saved
The standard plugin runs offline by default, and Jugg no longer collects project usage statistics. Issue reports include only explicitly listed, privacy-redacted diagnostic files, show the destination before upload, and can be saved locally instead.
Custom server upload for compile data is supported. See Jugg Backend.
./gradlew buildPluginbuilds the plugin intoidea/build/distributions../gradlew runIdestarts an IDE instance for development and debugging.
Jugg is open source under the MIT License.