The essential Kotlin Script suite for Senior Android Engineers to eliminate Technical Debt, shrink APK size, and boost build speeds.
As a Senior Android Engineer specializing in architectural health, I know that Technical Debt isn't just about messy code—it's about slow build times, large APK size, and decreased team productivity.
Cleaning up this debt requires hunting down both dead resources and dead Kotlin/Java code that silently bloat your codebase.
💡 For a deeper dive into the cost of this problem, see my analysis on the Uber Driver App's architectural overhaul: Lessons from the Uber Driver App Rewrite
To prove the suite's effectiveness, we ran both detectors on the highly reputable and well-maintained open-source project, Unstoppable Wallet.
| Detector | Metric | Result |
|---|---|---|
| Resource Detector | Dead Resources Identified | 17 critical resources! |
| Dead Code Detector | Dead Declarations Found | 66 potentially unused classes/methods! |
Conclusion: The AndroidCodeCleaner suite found a combined total of 83 items ready for deletion in a professional codebase, proving its precision and immediate value.
The tools are built on Kotlin Script, requiring minimal setup and no complex Gradle configuration. For the simplest execution, we recommend using the kotlin runtime instead of kotlinc -script.
Make sure you have the Kotlin command-line compiler and runtime installed on your system.
These core tools are free to use and excellent for quick, local checks. The script will prompt you for the module path.
Hunts for unused drawables, layouts, and XML files.
kotlin scripts/find_unused_resources.ktsHunts for unused Kotlin/Java classes and functions using advanced static analysis.
kotlinc -script scripts/find_dead_code.ktsNote: Both tools only report items; they do not delete anything. Manual review is required.
The AndroidCodeCleaner Pro features are designed for professional engineering teams that need automation and standardized reporting within a CI/CD environment.
Pro features require a valid license key set as the DEAD_CODE_LICENSE_KEY environment variable.
Why Pay? This is the only way to automatically block merging new dead code into your main branch. It ensures architectural quality at the source.
The --ci-mode flag disables interactive prompts and causes the script to exit with a non-zero code (1) if any dead code is found, failing the build instantly.
# Set your license key first
export DEAD_CODE_LICENSE_KEY="YOUR_PURCHASED_KEY"
# Run the Pro tool
kotlin scripts/find_dead_code.kts <MODULE_PATH> --ci-mode
# Example: kotlin scripts/find_dead_code.kts ../app/ --ci-modeValue for Teams: Generate machine-readable output for integration with dashboards, custom reporting tools, or automated issue generation in Jira/GitHub Issues.
Use the --json-output flag to save the results instead of printing them to the console.
# Execute this command to see the power of JSON reports.
kotlin scripts/find_dead_code.kts <MODULE_PATH> --json-output <FILENAME>.json
# Example: kotlin scripts/find_dead_code.kts ../app/ --json-output dead_code_report.jsonIf you have executed the
I specialize in integrating architectural quality tools into professional
This tool is built and maintained completely free for the Android community by an experienced architect. If AndroidCodeCleaner saved you time and helped clean up your project, please consider supporting its ongoing development.
Your support helps fund the next big features, such as:
- Advanced dead code detection (finding unreachable Kotlin/Java code).
- Automatic deletion commands.
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|---|---|---|
| Ethereum (ETH) | 0x2c6497d4492cdBAbB38D226353d5C656d4D71eB8 |
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Thank you for your support!
This project is licensed under the Apache License 2.0.