AI Code Refactoring Tools in 2026: A Practical Developer's Guide (opens in new tab)

AI tools promised to make developers write cleaner code faster. The data tells a different story: developers are refactoring 60% less than before AI coding tools arrived, while duplicate code blocks in AI-generated codebases rose 8x year-over-year in 2024. The tools that were supposed to eliminate technical debt are creating more of it. The root cause is scope. Most developers use AI refactoring by pasting a function into a chat and asking for improvements. That approach misses everything tha...