edx

Open Source

Developer tools I build to keep Swift codebases honest. All MIT-licensed, distributed through my own Homebrew tap.

swift-mutation-testing Measure and improve test effectiveness in Swift codebases using mutation testing. swift-cpd Detect and eliminate duplicated logic in Swift and Objective-C/C codebases to improve maintainability and code quality. swift-marshal Ensure consistent member ordering in Swift types to improve readability and maintainability.

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  • Swift Marshal
  • Swift CPD
  • Swift Mutation Testing

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© 2026 Érico Perez Neto. All rights reserved.