iOS Image Optimizer - Open Source Swift Tool for Image Optimization

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I'd like to announce iOS Image Optimizer, an open source Swift command-line tool designed to help iOS developers analyze their projects for image optimization opportunities while ensuring compliance with Apple's Human Interface Guidelines.

What it does

The tool provides automated analysis of iOS projects to identify unused images, validate Apple compliance, and deliver actionable recommendations for improving app performance and App Store approval chances. Key features include:

  • Unused image detection with sophisticated pattern recognition for dynamic loading

  • Apple compliance validation against official Human Interface Guidelines

  • PNG interlacing analysis for performance optimization

  • Color profile validation for consistent appearance across devices

  • Asset catalog organization validation

  • Design quality assessment including touch target analysis

  • Comprehensive scoring system (0-100) for Apple compliance

Technical Details

  • Built entirely in Swift using ArgumentParser, Files, and Rainbow libraries

  • Open source with MIT license for community contributions

  • Requires Swift 5.9+ or Xcode 14+

  • Supports macOS 13+ on both Intel and Apple Silicon

  • Includes 154 comprehensive unit tests with 73.8% code coverage

  • CI/CD pipeline with automated testing via GitHub Actions

Swift Programming Interface

The tool is structured as a Swift Package with modular components including ProjectAnalyzer, AppleComplianceValidator, UsageDetector, and SemanticAnalyzer. It provides both command-line and programmatic interfaces for integration into existing Swift workflows.

Usage

swift run iOSImageOptimizer /path/to/your/iOS/project

swift run iOSImageOptimizer /path/to/your/ios/project --verbose

swift run iOSImageOptimizer /path/to/your/ios/project --json

The tool analyzes project structure, validates against Apple's official guidelines, and provides prioritized recommendations for optimization without modifying any project files.

Open Source Availability

Available on GitHub: GitHub - sahilsatralkar/iOSImageOptimizerTool: iOS Image Optimizer Tool

Contributions welcome - the project includes comprehensive tests and CI/CD for reliable development.

This tool addresses a common need in iOS development - ensuring image assets meet Apple's standards while optimizing bundle size and performance.

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