List of the Top 18 AI Code Refactoring Tools for C in 2025

Cody is a sophisticated AI coding assistant created by Sourcegraph to improve software development's efficiency and quality. It works effortlessly within popular Integrated Development Environments (IDEs) such as VS Code, Visual Studio, Eclipse, and various JetBrains tools, offering features like AI-enhanced chat, code autocompletion, and inline editing, all while preserving existing workflows. Tailored for both solo developers and collaborative teams, Cody focuses on maintaining consistency and quality throughout entire codebases by leveraging extensive context and shared prompts. Moreover, it broadens its contextual insights beyond mere code by integrating with platforms like Notion, Linear, and Prometheus, thus creating a comprehensive picture of the development landscape. By utilizing advanced Large Language Models (LLMs), including Claude 3.5 Sonnet and GPT-4o, Cody provides customized assistance that can be fine-tuned for various applications, striking a balance between speed and performance. Users have reported notable increases in productivity, with some indicating time savings of around 5-6 hours weekly and a doubling of their coding efficiency when utilizing Cody. As developers continue to explore its features, the potential for Cody to transform coding practices becomes increasingly evident.

Windsurf is an innovative IDE built to support developers with AI-powered features that streamline the coding and deployment process. Cascade, the platform’s intelligent assistant, not only fixes issues proactively but also helps developers anticipate potential problems, ensuring a smooth development experience. Windsurf’s features include real-time code previewing, automatic lint error fixing, and memory tracking to maintain project continuity. The platform integrates with essential tools like GitHub, Slack, and Figma, allowing for seamless workflows across different aspects of development. Additionally, its built-in smart suggestions guide developers towards optimal coding practices, improving efficiency and reducing technical debt. Windsurf’s focus on maintaining a flow state and automating repetitive tasks makes it ideal for teams looking to increase productivity and reduce development time. Its enterprise-ready solutions also help improve organizational productivity and onboarding times, making it a valuable tool for scaling development teams.

Syntax Generating Apps provide an excellent solution for obtaining coding responses to your inquiries. Their user-friendly design makes it surprisingly straightforward to discover solutions to your programming questions in your preferred language. AskCodi features tools for both frontend and backend development, along with resources for documentation, test creation, and numerous other areas where users can pose questions and receive answers. This platform boasts support for over 50 languages and frameworks. Additionally, it maintains a codebase that archives all generated code, allowing users to revisit it whenever needed. By utilizing AskCodi, you can significantly boost your productivity while enhancing your maintenance and debugging processes. Furthermore, AskCodi is accessible in various natural languages beyond just English, including German, Spanish, and Polish, making it a versatile choice for a global audience.

Meet your AI coding assistant: GitHub Copilot, which offers suggestions for entire lines or complete functions directly in your coding environment. By leveraging billions of lines of publicly available code, GitHub Copilot guarantees that vital knowledge is at your fingertips, enabling you to conserve precious time and maintain focus. Currently available as an extension for Visual Studio Code, it integrates effortlessly on both your local system and in the cloud through GitHub Codespaces. Its ability to provide real-time suggestions as you type enhances your coding efficiency. Supporting a diverse range of frameworks and programming languages, the technical preview is particularly proficient in Python, JavaScript, TypeScript, Ruby, and Go, while also accommodating many other languages. With GitHub Copilot, you retain full control over your coding journey, allowing you to explore various suggestions, choose which to implement or ignore, and modify the code as needed. Furthermore, GitHub Copilot adapts its recommendations according to your individual coding style, ensuring a more tailored programming experience. This groundbreaking tool significantly boosts developers' productivity and creativity, transforming the way coding tasks are approached. In an era where efficiency is paramount, GitHub Copilot stands out as a revolutionary ally for programmers.

Accelerate the speed and efficiency of software development and delivery by harnessing the power of generative AI, while maintaining strong enterprise security and privacy measures. Gemini Code Assist enhances your coding experience through its ability to complete your code in real-time and generate full code segments or functions upon request. This dynamic coding tool is compatible with a wide range of popular integrated development environments (IDEs) such as Visual Studio Code and various JetBrains IDEs, including IntelliJ, PyCharm, GoLand, and WebStorm, as well as Cloud Workstations and Cloud Shell Editor, supporting over 20 different programming languages like Java, JavaScript, Python, C, C++, Go, PHP, and SQL. With a user-friendly natural language chat interface, Gemini Code Assist allows for seamless interaction, providing answers to your programming questions or offering insights into best coding practices, and this chat feature is available across all supported IDEs. Organizations can customize Gemini Code Assist by integrating their proprietary codebases and knowledge libraries, thus enabling the tool to deliver more tailored assistance that meets unique enterprise requirements. Moreover, Gemini Code Assist is designed to facilitate substantial changes across entire codebases, thereby greatly enhancing the development workflow. This versatile approach not only increases productivity but also empowers teams to innovate at a faster pace in a secure setting, ultimately driving success in software projects. As organizations adapt to evolving technological landscapes, tools like Gemini Code Assist become essential in maintaining a competitive edge.

Enhance your coding journey and sustain your creative flow with Kite, which seamlessly incorporates AI-enhanced code completions into your favorite code editor, thereby equipping developers with remarkable tools. By installing the Kite engine, you can elevate any code editor with sophisticated AI completions, supporting a wide array of over 16 programming languages and various code editors. Experience quick, context-aware suggestions that facilitate your coding tasks, enabling you to handle longer multi-line completions during challenging scenarios. As you optimize your coding speed, Kite's AI can decrease your keystrokes by up to 47%, significantly improving your workflow efficiency. Effortlessly access Python documentation with just a click or hover of your mouse, and have valuable examples and tutorials readily available. Furthermore, you can quickly find relevant files within your codebase that relate to your current work, significantly enhancing productivity for countless developers. With Kite, you not only code at an accelerated pace but also enrich your entire development experience, making it an invaluable tool for programmers. The combination of advanced features makes Kite an essential addition to any developer's toolkit.

Meet CodeGeeX, an impressive multilingual code generation model equipped with 13 billion parameters that has been pre-trained on a vast array of code from more than 20 programming languages. Utilizing CodeGeeX's capabilities, we have developed a VS Code extension (search for 'CodeGeeX' in the Extension Marketplace) to aid programmers across diverse languages. Beyond its ability to generate and translate code in multiple languages, CodeGeeX also functions as a tailored programming assistant thanks to its few-shot learning feature. By simply providing a few examples as prompts, CodeGeeX can replicate the demonstrated patterns to create code that is consistent with those examples. This opens the door to a range of exciting functionalities, including code explanation, summarization, and generation that cater to individual coding styles. Users, for example, can input snippets that reflect their personal coding preferences, and CodeGeeX will produce analogous code. Additionally, by trying out various prompt structures, users can encourage CodeGeeX to acquire new programming techniques and boost its adaptability. Consequently, CodeGeeX emerges as an essential tool for developers seeking to optimize their coding workflows and enhance their productivity in software development. Its innovative features truly make it a game-changer in the realm of coding assistance.

BLACKBOX AI code search is designed for developers to efficiently locate optimal code snippets across a wide array of over 20 programming languages, such as Python, JavaScript, TypeScript, Ruby, Go, and more. This tool is integrated with popular IDEs like VS Code and GitHub Codespaces, as well as platforms including Jupyter Notebook and Paperspace. With support for languages such as C#, Java, C++, SQL, PHP, and TypeScript, users can effortlessly search for code fragments within their coding environment without needing to switch applications. BLACKBOX enables users to select code from any video and seamlessly transfer it to their text editor while maintaining proper indentation. The Pro plan further extends the functionality, allowing access to copy text from over 200 programming languages, making it an invaluable resource for developers striving to build exceptional products and streamline their workflows. Additionally, this versatility ensures that developers are equipped with a comprehensive toolset for their diverse coding needs.

DeepSeek Coder represents a groundbreaking advancement in the field of data analysis and programming. Utilizing cutting-edge machine learning and natural language processing, it empowers users to seamlessly integrate data querying, analysis, and visualization into their everyday workflows. With an intuitive interface designed for both novices and experienced developers, it simplifies the processes of writing, testing, and optimizing code. Notable features include real-time syntax checking, intelligent code suggestions, and comprehensive debugging tools, all of which significantly boost coding efficiency. Additionally, DeepSeek Coder excels at interpreting complex data sets, allowing users to derive meaningful insights and create sophisticated data-driven applications with ease. Its robust capabilities and user-friendly design make DeepSeek Coder an indispensable tool for anyone involved in projects that rely on data. As such, it stands out as a key resource in the ever-evolving landscape of technology and analytics.

GoCodeo serves as an all-encompassing AI platform tailored for developers, designed to expedite the processes of coding, testing, and debugging. By seamlessly integrating with VS Code, it delivers real-time support that ranges from generating code snippets to automatically producing unit tests. The platform’s AI-powered tools further enhance productivity by offering valuable debugging insights, allowing developers to swiftly pinpoint and resolve problems. With its compatibility across various programming languages and frameworks, GoCodeo enables developers to create high-quality, production-ready code with greater ease, optimizing development timelines and improving overall project efficiency. Ultimately, GoCodeo is a vital resource for developers seeking to elevate their coding experience and achieve faster results.

Wing Python IDE is specifically designed to boost your productivity while developing in Python, allowing you to concentrate on writing minimal code as it takes care of the complex details for you. With Wing, you can enjoy instant feedback while you write your Python code in a live runtime environment, which greatly enhances the coding experience and efficiency. The IDE simplifies navigation through your code and its accompanying documentation, making it user-friendly. Its advanced code analysis features aid in avoiding common mistakes and detecting problems early, leading to a more efficient development cycle. You can keep your codebase organized thanks to intelligent refactoring tools and comprehensive quality checks. Debugging Python code is made easy, as you can analyze debug data and try out fixes interactively without needing to restart your application. Whether you're developing on a local machine, remote server, virtual machine, or within a container, Wing is adaptable to your specific requirements. With over two decades of experience in creating Python IDEs, Wingware has crafted a truly Pythonic development environment that stands out in the market. Entirely built using Python, Wing not only caters exclusively to Python developers but also offers extensibility through Python, allowing for enhanced productivity. The integration of its robust features and tools positions Wing as an essential tool for developers looking for an efficient Python coding experience, making it a go-to choice for both novice and seasoned programmers alike.

Devin serves as a cutting-edge AI software development assistant designed to collaborate with engineering teams, aiming to streamline and improve the coding workflow. It plays a vital role in a variety of tasks, including repository creation, coding, debugging, and migrations, and can operate autonomously or alongside human developers. Over time, Devin enhances its performance by learning from the examples it encounters. The adoption of Devin has led to significant savings in both time and costs on large-scale projects, as demonstrated by its deployment at Nubank, where it accelerated migration processes by 8 to 12 times and reduced expenses by over 20 times. Furthermore, Devin is proficient in code refactoring and automating mundane engineering tasks, making it an essential resource for developers seeking to enhance their productivity. Its capacity for continuous learning and adaptation guarantees that it remains a crucial component in the rapidly changing world of software development, driving innovation and efficiency. As the industry evolves, tools like Devin will likely set new standards for collaboration and performance in the tech sector.

Accelerate your app development process with a cutting-edge coding assistant powered by machine learning. This remarkable tool enhances the application building experience by delivering automated code suggestions that align with the existing code and comments in your integrated development environment (IDE). Developers can responsibly utilize artificial intelligence (AI) to produce applications that are not only syntactically accurate but also secure. Instead of searching for and tweaking code snippets from various sources, you can easily generate complete functions and logical blocks with just a few clicks. Stay immersed in your work without stepping outside the IDE, as you receive custom code suggestions in real-time for all your projects across languages like Java, Python, and JavaScript. Amazon CodeWhisperer is a machine learning-augmented service crafted to boost developer productivity through code recommendations informed by natural language comments and pre-existing code within the IDE. This innovative tool facilitates both frontend and backend development, saving valuable time by helping to generate code necessary for building and training your machine learning models, thereby simplifying the overall development workflow. With such advanced functionalities at their disposal, developers can push the boundaries of innovation more rapidly than ever before, transforming the way they approach coding challenges.

Anthropic has introduced Claude Code, an AI-driven coding assistant, as part of the Claude 3.7 Sonnet release. This groundbreaking tool allows developers to optimize complex engineering workflows directly from their terminal, functioning as a supportive ally throughout the coding process. With the ability to scrutinize and navigate code, update files, run tests, and commit changes to GitHub, Claude Code also adeptly manages command-line operations. Early assessments highlight its exceptional effectiveness, completing extensive code refactoring and debugging tasks in a fraction of the time required by conventional approaches. While still in the research preview phase, Claude Code is already seen as an essential resource for shortening development cycles and enhancing test-driven development practices. Its sophisticated capabilities indicate a bright future for significantly boosting productivity in software engineering, potentially transforming how developers approach their projects.

Refraction is an advanced code-generation platform designed specifically for developers, utilizing artificial intelligence to aid in the code writing process. This groundbreaking tool allows users to create unit tests, generate documentation, and refactor existing code, among other functionalities. Supporting an impressive array of 34 programming languages, including Assembly, C#, C++, CoffeeScript, CSS, Dart, Elixir, Erlang, Go, GraphQL, Groovy, Haskell, HTML, Java, JavaScript, Kotlin, LaTeX, Less, Lua, MatLab, Objective-C, OCaml, Perl, PHP, Python, R Lang, Ruby, Rust, Sass/SCSS, Scala, Shell, SQL, Swift, and TypeScript, Refraction caters to a diverse developer community. By adopting Refraction, countless developers worldwide are enhancing their productivity and efficiency, as the platform automates various tasks such as creating documentation, conducting unit tests, and refactoring code. This innovation empowers programmers to focus on the more vital elements of software development while improving overall workflow. With the help of AI, users can easily refactor, optimize, troubleshoot, and conduct style checks on their code. Moreover, it aids in generating unit tests that are compatible with multiple testing frameworks, thereby elucidating the intent of the code and making it more understandable for others. Start harnessing the potential of Refraction today and elevate your coding journey to new heights, discovering newfound efficiencies and capabilities along the way.

We are thrilled to introduce Codestral, our first code generation model. This generative AI system, featuring open weights, is designed explicitly for code generation tasks, allowing developers to effortlessly write and interact with code through a single instruction and completion API endpoint. As it gains expertise in both programming languages and English, Codestral is set to enhance the development of advanced AI applications specifically for software engineers. The model is built on a robust foundation that includes a diverse selection of over 80 programming languages, spanning popular choices like Python, Java, C, C++, JavaScript, and Bash, as well as less common languages such as Swift and Fortran. This broad language support guarantees that developers have the tools they need to address a variety of coding challenges and projects. Furthermore, Codestral’s rich language capabilities enable developers to work with confidence across different coding environments, solidifying its role as an essential resource in the programming community. Ultimately, Codestral stands to revolutionize the way developers approach code generation and project execution.

Introducing MarsCode: a cutting-edge AI development platform ready for immediate implementation. This state-of-the-art tool boasts an 'out-of-the-box cloud AI IDE' alongside a 'robust AI assistant,' making it indispensable for developers eager to elevate their skills while optimizing their workflows. Its key features include: 1. A cloud-based AI IDE that liberates developers from the constraints of specific devices and locations. 2. Compatibility with local IDEs, blending traditional development methodologies with advanced AI functionalities. 3. A comprehensive suite of tools for code completion, bug detection, and optimization, providing smart assistance throughout the entire coding experience. 4. An intelligent Q&A feature at the repository level that allows developers to focus on their work with enhanced ease. 5. Flexible deployment options for various application types, such as websites, AI plugins, and APIs, addressing a wide spectrum of development needs. With MarsCode, developers not only unlock powerful resources but also discover an elevated level of productivity and efficiency in their projects. This innovative platform is set to transform the way developers approach their coding tasks.

Cosine possesses the ability to understand both overarching ideas and detailed specifics, providing responses that exceed human performance. Our methodology goes beyond being a simple enhancement to an LLM; it incorporates a variety of techniques such as static analysis and semantic search, among others. When you inquire about implementing a new feature or modifying existing code, simply ask Cosine, and we will deliver a thorough, step-by-step guide tailored to your needs. Cosine carefully organizes your codebase, gaining insights on multiple levels; from the interconnections between files and functions to a detailed semantic analysis of the code itself, guaranteeing that any question related to your codebase can be thoroughly answered. On the other hand, Genie is recognized as the premier AI software engineer, achieving an outstanding evaluation score of 30% on the respected SWE-Bench benchmark. It demonstrates remarkable proficiency in debugging, feature development, and code refactoring, executing these tasks either autonomously or in conjunction with the user, fostering a collaboration that feels like working with a colleague rather than just having a copilot. Both Cosine and Genie revolutionize the expectations for what AI can accomplish in the realm of software engineering, setting a new benchmark for the industry. This evolution in AI capabilities signals a transformative shift in how developers approach coding challenges, ultimately enhancing productivity and innovation.