The 10 Best AI Tools for Web Code Refactoring in 2027

Moderne is built to make estate-wide code changes with a deterministic engine that agents can drive, running the OpenRewrite recipe catalog across large codebases and many repositories. Its language menu lists Java, Spring Boot, C# and .NET, Python, Kotlin, and JavaScript and TypeScript. Typical prices are $250K for Commercial, $2M for Enterprise and $5M for the Fully Managed Service.

Sourcegraph’s Agentic Batch Changes lets you describe a change in plain language; the agent scopes it across your indexed codebase, applies it and tracks it to merge, publishing changesets to GitHub, GitLab and Bitbucket. You pay per changeset merged, not per token, seat or attempt, and Enterprise starts at $16K. Customers merged nearly a thousand changesets during the Beta.

CodeScene ACE is an AI-refactoring add-on for the IDE that targets five code smells: Complex Conditional, Bumpy Road Ahead, Complex Method, Deep Nested Complexity and Large Method. Its suggestions are fact-checked by a delivery chain that validates them, and it works with Java, JavaScript, TypeScript, JavaScript React, TypeScript React and C#. Standard is $19 and Pro $29 per active author per month, billed yearly.

Codemod runs org-wide security fixes, compliance remediation, migrations and modernization that complement coding agents. Community is $0 with the open-source engine, CLI and unlimited seats; Team starts at $1k a month with Codemod AI, Campaign and Insights. It reports 3M+ codemod runs to date.

JetBrains AI Assistant adds Suggest Refactoring to your IDE: select code, click the AI Assistant icon and the AI chat opens with suggestions. You apply them, step through the changes and choose Accept All or Discard All. AI Free is $0 with 3 monthly credits; AI Pro is $10 and AI Ultimate $30 per user per month on monthly billing.

Amazon Q Developer automates Java upgrade tasks such as updating code, running unit tests and checking deployment readiness, and accelerates .NET porting from Windows to Linux up to 4 times faster. Free is $0 with 1,000 lines of code a month for Java upgrades; Pro is $19 per user per month with 4,000 lines of code per user per month, pooled at account level.

GitHub Copilot’s refactoring guide shows Copilot Chat suggesting ways to make code easier to understand and maintain, plus performance, design patterns, data access layers, cross-cutting concerns, inheritance and translation to another language. Free is $0; Pro is $10, Pro+ $39 and Max $100 per month, and app modernization for Java and .NET is included from Pro.

SonarQube’s AI CodeFix generates AI fix suggestions for issues found during analysis, with a Fix with AI CodeFix quick fix in VS Code. It is available in connected mode with SonarQube Server Enterprise and Data Center editions and SonarQube Cloud Subscription plans, and an administrator must activate it. SonarQube Cloud Free is $0 for private projects up to 50k LOC; Team starts at $34 monthly.

Qodo is an agentic code review platform with an unlimited rules system, Git and IDE integrations and pre-PR review skills, aimed at code quality rather than rewriting code. Pro Team is $30 a month with monthly billing and no commitment, credits cost $.012 each, and there is a free 14-day trial but no permanent free tier.

Sourcery is an AI code review tool: it posts a pull request summary, review comments and suggested fixes you can commit, for every language GitHub recognizes, on GitHub and GitLab. Open Source is free; Pro is $12 per seat per month billed annually or $15 billed monthly, and Team is $24 or $30. Its current pages describe review and scans rather than refactoring.