code-duplication-detector

Code duplication detection identifies exact and near-identical blocks across your codebase using block-based analysis with a minimum threshold of 5 lines. The detector scans TypeScript and JavaScript sources across multi-file projects, assigns similarity scores to each match, and generates a deterministic report pinpointing duplicates and suggesting refactoring opportunities to enforce the DRY principle.

The detector identifies exact duplicates, near-identical blocks with minor variations, repeated logic patterns, and copy-paste code. It assigns similarity percentages to prioritize which duplicates create the most maintenance burden, helping you focus refactoring efforts on the highest-impact violations.

Yes, the detector operates on TypeScript and JavaScript sources using language-agnostic block-based comparison. It works across multi-file repositories and projects of any scale, applying consistent duplicate detection and similarity scoring regardless of project structure.

Yes, the detector provides refactoring guidance alongside duplication reports. It suggests concrete extraction or abstraction opportunities based on similarity scores, helping you decide whether to consolidate duplicates into shared functions, utilities, or base classes.

The detector uses a minimum block size of 5 lines to identify duplicates. Blocks smaller than this threshold are not flagged, focusing analysis on substantial repeated logic rather than trivial similarities.

No, the code duplication detector operates as a non-modifying analyzer. It produces deterministic duplication reports with similarity scores and refactoring suggestions but does not alter your codebase; you decide which duplicates to refactor.