code-duplication — independent software & tools

4 independent code-duplication listings the big search engines bury.

• CodeEraser

  github · Free · by skymanbp

  An eraser against LLM-induced code & document entropy — clone/duplication/deadcode/structure judgment (Haskell core, Rust frontend) with Claude Code guard hooks, MCP, CI gates and a Tauri GUI

• fallow

  npm · Free · by GitHub Actions

  Deterministic codebase intelligence for TypeScript and JavaScript. Quality, risk, architecture, dependencies, duplication, and safe cleanup evidence for humans, CI, and agents. Optional runtime intelligence layer (Fallow Runtime) adds production execution

• clines

  github · Free · by adiletbaimyrza

  Measure your codebase from the terminal — lines per language, duplicate code, complexity, token cost for AI agents, comment drift, change coupling, a refactor verdict per file, and what is safe to hand to an agent. JSON output, CI exit codes, PR diff mode and an MCP server. One dependency, 100% test coverage.

• drift

  github · Free · by mick-gsk

  Claude Code plugin that tells your agent when it is about to build something that already exists. Two-line install, no dependencies, answers in under 100 ms. Also a standalone static analyzer for structural drift.