Best AI-Augmented Code Modernization Tools for GitLab

Amazon Q Developer is an advanced AI assistant built for professional developers, combining coding intelligence with deep AWS expertise. It’s designed to handle every stage of development—from writing and refactoring code to performing upgrades and automating documentation. Integrated with major IDEs and the AWS Management Console, it empowers developers to code faster and operate smarter using secure, context-aware assistance. Its agentic automation can autonomously implement features, test applications, and perform large-scale migrations like .NET to Linux or Java 8 to Java 17 in minutes. Developers can chat directly with Amazon Q inside Slack, Microsoft Teams, GitHub, and GitLab, where it provides architectural recommendations and incident resolution guidance. The tool also supports CLI autocompletions and AWS resource management to streamline workflows from the terminal to the cloud. Offering enterprise-grade access controls and IAM integration, it ensures that organizational data and permissions remain protected. Available on the AWS Free Tier, Amazon Q Developer enables up to 50 monthly AI interactions and 1,000 lines of code transformation at no cost, helping teams start building smarter right away.

Diffblue Cover analyzes Java programs and creates unit regression tests that accurately reflect the current behavior. The CLI tool is 100% self-configuring and can be used in your Gradle or Maven environment. The CLI tool automates the test-writing process and provides a speed boost to organizations working towards achieving DevOps goals such as CI/CD. The CLI tool fits in a CI pipeline and protects the entire codebase from regressions by shifting testing to the left. Diffblue Cover's unit tests for regression are fast and verify any code changes immediately. This allows users to detect unwanted changes in code behavior as soon as possible. Teams can save even more time by having tests automatically maintained.

Avoid being hampered by onboarding challenges, knowledge silos, or context switching by utilizing Swimm to create and modify documents that are seamlessly integrated with your code, automatically updated, and embedded in your workflow. With a language-agnostic editor and features like Smart Tokens and Snippet Studio, Swimm provides a robust foundation for contemporary documentation practices. Craft engaging, media-rich documents that are closely tied to your codebase with ease. The Auto-sync algorithm ensures your documentation remains aligned with any refactoring or structural changes, sparing you from the hassle of updating file names, function names, or implementations. Swimm actively monitors your documentation as your code changes, alerting you to any discrepancies that arise. You can conveniently access documents alongside the relevant code, maintaining your focus within your IDE. When you click a link, a new tab opens with the documentation rendered flawlessly from Markdown, ensuring a smooth and uninterrupted workflow. This streamlined approach not only enhances collaboration but also maximizes productivity, allowing teams to work more efficiently together.

Reduce static code analysis time from 1000s to just minutes. Security vulnerabilities can be fixed across hundreds of repositories in a matter of minutes. Moderne automates code-remediation tasks, allowing developers to deliver more business value every day. Automate safe, sweeping codebase changes that improve quality, security, cost, and code quality. Manage dependencies in your software supply chain - keeping software up-to-date continuously. Eliminate code smells automatically, without the scanning noise of SAST or SCA tools. You will always work in high-quality code. It's the last shift for security. Modern applications naturally accumulate technical debt. They are made up of many codebases and software ecosystems, which include custom, third-party and open-source code. Maintaining your code has become more complicated due to software complexity.