Duplication

What Is Code Duplication? Best Tools to Detect & Fix It in 2026

Similar logic that appears in different parts of a system for valid, independent reasons. Changes to one shouldn't necessarily affect the other. duplication

In software development, occurs when the same logic or data is repeated across multiple parts of a codebase . While often viewed as a "code smell" that increases technical debt, strategic duplication can sometimes be better than a poorly designed abstraction. 1. Types of Duplication What Is Code Duplication