List of the Top 25 Free AI Code Review Tools 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.

Qodo, which was previously known as Codium, offers an analysis of your code to detect potential bugs prior to deployment. By mapping out the behaviors inherent in your code, it effectively pinpoints edge cases and highlights any areas of concern. Subsequently, Qodo produces clear and meaningful unit tests that align with your code's functionality. This allows you to observe how your code operates and assess the impact of modifications on the surrounding codebase. With a keen focus on code coverage, it emphasizes the importance of high-quality tests that validate functionality, thereby instilling confidence in your commitment to the code. Instead of spending excessive time on dubious testing, you can redirect your efforts toward developing features that genuinely benefit your users. As you write, Qodo analyzes your code, documentation, and comments to propose tests that can be easily integrated into your suite. Committed to maintaining code integrity, Qodo not only generates tests but also aids in deepening your understanding of the code, exposing edge cases, and identifying any suspicious behaviors, ultimately enhancing the robustness of your software. By using Qodo, you can ensure a more efficient development process, allowing you to prioritize quality alongside productivity.

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.

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.

Bito's AI empowers developers to significantly amplify their effectiveness. It serves as a versatile toolkit that can enhance productivity by tenfold, potentially freeing up an hour of your day. Utilizing the same models as ChatGPT, Bito AI simplifies tasks like writing code, grasping syntax, and creating test cases. Moreover, it facilitates code explanation, commenting, security checks, and clarification of complex concepts. The capability to streamline your workflow means you can focus on innovation rather than getting lost in endless searches or mundane tasks. Ultimately, skilled development teams are essential for driving innovation, transforming creative ideas into reality. These teams act as the skilled architects of advanced, scalable software, contributing to some of the most remarkable technological advancements in human history. With Bito AI at your side, the possibilities for development are virtually limitless.

CodeSandbox is designed to simplify the process of expressing and validating your coding ideas while eliminating the complexities associated with setting up development environments and sharing projects. The platform has garnered over 4 million monthly users, including notable organizations such as Shopify and Atlassian, and since its inception, more than 35 million applications have been developed by creators. It plays a vital role in numerous open-source projects, including popular frameworks like React, Vue, and Babel. Users can easily invite friends or team members to collaborate or view their projects through a simple URL, and they have access to over 1 million packages to build robust applications efficiently. Additionally, developers can import and execute repositories straight from GitHub or select from a variety of templates to get started in no time. Furthermore, Boxy, the AI-driven coding assistant from CodeSandbox, is now accessible to all users with Pro subscriptions, enhancing the coding experience even further. This combination of features positions CodeSandbox as a leading tool in the future of web development.

Eliminate obstacles related to onboarding, knowledge barriers, or frequent context switching by leveraging Swimm, which enables you to create and update documents that are intricately connected to your code, continuously refreshed, and integrated into your workflow. Swimm features a versatile editor and innovative tools like Smart Tokens and Snippet Studio, laying the groundwork for effective modern documentation strategies. Effortlessly produce engaging documents enriched with multimedia elements that are directly linked to your codebase. Thanks to the Auto-sync algorithm, your documentation stays in sync with any code refactoring or structural alterations, thus relieving you from the burden of manually updating file names, function names, or other implementations. Swimm keeps a close watch on your documentation while your code evolves, notifying you of any inconsistencies that may develop. You can easily view documents alongside the appropriate code, which helps maintain your concentration within your integrated development environment (IDE). By clicking a link, a new tab will open, displaying the documentation beautifully rendered from Markdown, which fosters a smooth and continuous workflow. This efficient method not only bolsters teamwork but also significantly increases productivity, empowering teams to collaborate more effectively. With Swimm, the focus on documentation becomes a seamless part of your development journey, transforming how teams share knowledge and manage information.

Collaborate effortlessly with your team and AI while retaining your favorite tools, minimizing disruptions and context-switching. Pullflow integrates user identities and code-review workflows across platforms like GitHub, Slack, and VS Code, facilitating seamless discussions regardless of where you are. You can start tasks from any platform and smoothly transition back to your projects. With its integrations into GitHub Actions, external CI/CD systems, and various GitHub apps, Pullflow offers an all-encompassing view of your pull requests, covering everything from drafts and reviews to testing and deployment. Let Pullflow streamline your tasks with just a chat mention or a quick keyboard shortcut in your IDE, allowing you to request reviews, manage labels, give feedback, approve changes, and undertake other activities without the need to switch over to GitHub. This efficient method not only boosts productivity but also helps maintain your concentration, making teamwork more effective and enjoyable. Ultimately, Pullflow empowers you to focus on your work while enhancing the collaborative experience.

Discover a privacy-focused method for evaluating pull requests that delivers comprehensive code suggestions for every line, coupled with a dynamic chat feature that evolves with use. The system effectively summarizes changes within the pull request, clarifying the intent behind each modification. Automated release notes are generated to facilitate seamless integration into your release documentation. Every code change undergoes meticulous review, offering precise and actionable feedback that can be readily applied. You can interact with the bot by posing questions directly linked to your code and providing extra context for generating tailored code snippets. As your dialogue with the bot expands, its capabilities enhance, resulting in faster review cycles and improved quality of code change recommendations. Your privacy is preserved throughout this process, allowing the system to customize the review experience to meet your specific requirements. This innovative approach continuously evolves, improving the relevance of its suggestions to better align with your unique coding style and preferences as you interact with it over time. By fostering this dynamic relationship, developers can achieve a more efficient workflow and greater satisfaction in their coding practices.

Gain prompt code evaluations from skilled engineers, enhanced by AI solutions. Every time you submit a pull request, you can effortlessly incorporate seasoned engineers into your process. Boost the speed of delivering high-quality, secure code through AI-assisted code evaluations. Regardless of whether your development team consists of 5 or 5,000 individuals, PullRequest will improve your code review framework and customize it to meet your specific needs. Our knowledgeable reviewers help detect security risks, reveal hidden bugs, and tackle performance issues before your code goes live. This entire operation is seamlessly integrated into your existing tools to ensure maximum productivity. Our experienced reviewers, supported by AI analytics, can effectively pinpoint critical security flaws. We utilize sophisticated static analysis that leverages both open-source tools and proprietary AI, offering reviewers deeper insights. Empower your senior staff to concentrate on high-level strategies while making significant progress in fixing issues and optimizing code, even as other team members continue their development work. This cutting-edge strategy enables your team to sustain productivity while guaranteeing top-notch code quality. As a result, the overall efficiency of your development process is significantly enhanced, leading to faster project turnaround times.

Optimize your workflow by assigning smaller tasks to an AI assistant. Tusk enables software developers to address chore tickets with impressive speed, empowering them to work quickly and effectively. It skillfully fine-tunes its code alterations based on any feedback received from code reviews linked to the pull request. A skilled engineer appreciates the necessity of thorough testing before any code goes live. Tusk takes care of your automated testing and inspections to confirm that the pull request operates correctly. Even if a pull request proves impractical, we still save you valuable time by providing contextual code that can serve as a solid starting point for your work. With Tusk, you can avoid distractions from project managers regarding chore tickets and focus on important tasks while enhancing the overall quality of your product. Addressing and fixing customer-reported bugs can be quite time-consuming and labor-intensive. Allow Tusk to perform the preliminary evaluation to tackle these challenges. We understand that your time is more valuable than merely editing a header or conducting a search and replace across multiple files. Let Tusk handle your product quality backlog and the UI/UX updates that may have been on your to-do list for too long. By doing so, you can regain your time and direct your attention to more critical components of your projects, ultimately leading to greater innovation and success.

DeepCode AI is the core technology behind Snyk code, positioning it as the fastest and most accurate Static Application Security Testing (SAST) tool on the market. By integrating DeepCode AI into the Snyk platform, which utilizes a range of AI models refined with security-centric data, Snyk offers users the benefits of advanced artificial intelligence while minimizing associated risks. Capable of supporting 11 different programming languages, DeepCode AI is designed to effectively discover and fix vulnerabilities while also managing technical debt. This cutting-edge AI enhances Snyk's one-click security options and broad application reach, allowing developers to work quickly while ensuring strong security practices are in place. Continuously enhanced by skilled researchers, DeepCode AI is trained on an extensive array of open-source projects, ensuring that customer data remains entirely secure. The hybrid approach employed by DeepCode AI combines multiple models and tailored training datasets, all focused on improving application security. This dedication to cutting-edge development guarantees that developers can launch their applications with confidence, knowing that their security is uncompromised. Furthermore, the seamless integration of DeepCode AI into the development workflow streamlines the process of safeguarding applications against potential threats.

Metabob specializes in diagnosing, interpreting, and resolving coding problems that may stem from either human errors or artificial intelligence. Utilizing cutting-edge graph neural networks for detection alongside large language models for elucidation and resolution, Metabob effectively combines the advantages of both technologies. The graph neural networks scrutinize and classify problematic code while remaining contextually aware. This code, enriched with pertinent context, is then archived in Metabob's backend system. The stored information is later harnessed by an integrated large language model, which generates customized explanations and solutions informed by the provided context. Trained on a vast dataset comprising millions of bug fixes performed by adept developers, Metabob's AI possesses a profound understanding of coding logic and context, allowing it to pinpoint complex issues across various codebases and autonomously generate appropriate fixes. Furthermore, Metabob's AI code review feature has the capability to reveal numerous logical errors, such as race conditions and overlooked edge cases, that often elude traditional static analysis tools. This groundbreaking methodology not only boosts debugging efficiency but also significantly improves the overall quality of the codebase. As a result, developers can focus more on innovation and less on troubleshooting.

Boost your coding productivity and quickly spot bugs using AI-generated summaries and interactive communication tools. With AI summaries providing instant context for each pull request, your team can speed up the code review cycle significantly. By integrating immediate, actionable insights for every submission, you can not only improve code quality but also hasten product delivery. Communicate with AI through GitHub Pull Request Comments to pinpoint potential problems and receive timely feedback on your code. Customize your code review assistant by setting specific guidelines and filters that cater to your team's needs for maximum efficiency. GitChat empowers you to transform your code review processes, resulting in enhanced code quality and swifter product launches. The ease of streamlining your development workflow has reached new heights, enabling teams to focus more on innovation. Embrace these tools to ensure your projects are completed on time and with superior quality.

Streamline your Git commands and effortlessly handle stacked pull requests straight from your terminal with ease. You can visually create and adjust stacked PRs without leaving your development environment, ensuring a cohesive workflow. Organize all your PRs and review requests in a centralized inbox for straightforward tracking. Thanks to Graphite's AI, which understands the context of the codebase, you’ll receive immediate and actionable insights on every pull request. Prevent merge conflicts and keep your main branch tidy, whether your team is comprised of 10 members or 10,000. Elevate your team's productivity with comprehensive, real-time metrics for developers. Enjoy a quicker, more user-friendly Git interface that simplifies the stacking process effectively. By using the command 'gt create' again, you can easily add another branch on top of your existing changes without having to wait for merges into the main branch. Your local stack will effortlessly sync with remote updates, and you can efficiently clean up outdated branches using 'gt sync'. The 'gt modify' command allows you to alter changes across your entire stack, while Graphite manages all recursive rebasing tasks on your behalf. When you're ready to present your work, the 'gt submit' command enables you to create or update PRs for each branch in your stack, facilitating a more streamlined development experience. This innovative method of managing Git empowers developers to concentrate more on writing code instead of grappling with complicated version control problems, ultimately leading to a more enjoyable and productive coding environment. By adopting these practices, teams can foster collaboration and improve their overall efficiency in the software development lifecycle.

A newly developed framework specifically crafted to address the intricacies of autonomous intelligence is now accessible. You can continue to create software utilizing your existing programming languages, libraries, APIs, datasets, and models. This uniquely designed autonomous product is built to adapt and grow in accordance with your evolving development requirements. One of the standout features of autonomous AI is its ability to simplify the video production process by autonomously generating, editing, and enhancing content, significantly reducing the manual effort required. By integrating AI technologies like Luma AI or OpenAI for video generation and utilizing Azure for scalable text-to-speech capabilities, your autonomous system is set to produce exceptional video content. Additionally, by linking with platforms such as YouTube, your autonomous AI can continuously improve its performance based on user feedback and engagement analytics. We firmly believe that the journey toward achieving Artificial General Intelligence (AGI) hinges on the cooperation of numerous autonomous systems working in tandem. Our passionate team comprises skilled engineers and researchers dedicated to the evolution of autonomous artificial intelligence. Should this innovative idea strike a chord with you, we are excited to discuss and explore collaborative opportunities that could arise. Together, we can push the boundaries of what is possible in the realm of AI.

Pythagora represents a groundbreaking platform driven by artificial intelligence that aids developers in building extensive web applications while greatly minimizing the necessary coding efforts. This platform boasts a diverse range of AI agents that collaboratively generate code, perform code reviews, develop tests, troubleshoot problems, and deploy applications effortlessly. By automating many aspects of the software development lifecycle, Pythagora not only boosts developer efficiency but also accelerates the overall timeline for development projects. It supports frontend development with React and manages backend operations using Node.js, with intentions to expand its capabilities to include Python in the near future. With its ability to oversee multiple dimensions of the development process, Pythagora is exceptionally suited for rapidly delivering both minimum viable products and fully production-ready applications. Additionally, it simplifies the creation of scalable and maintainable solutions, addressing the requirements of both new startups and well-established enterprises. As a result, Pythagora is poised to transform the application development landscape, making it more efficient and user-friendly for developers everywhere. This shift not only enhances productivity but also encourages innovation across various industries.

Forge is a cutting-edge AI-driven code review tool designed to drastically reduce the time developers allocate to code evaluations while simultaneously emphasizing the importance of maintaining high code quality and longevity. Currently, Forge is in beta and is available solely to Teams users on platforms like GitHub Free, GitHub Pro, GitHub Team, and GitHub Enterprise Cloud. By harnessing the power of artificial intelligence, users can better grasp the nuances of the code changes they are reviewing and receive immediate suggestions that facilitate a smoother review process, fostering alignment between authors and reviewers. To enhance the review experience, users can also add GIFs and AI-generated ASCII art to their comments, making feedback more visually appealing. Additionally, the AI functionality ensures a comprehensive review of the code, verifying that it complies with specific organizational or team coding standards. As a Chrome extension, Forge reimagines the conventional code review process, creating a more vibrant and AI-enhanced environment for developers. With a comprehensive suite of AI features woven throughout, Forge not only improves the review workflow but also preserves the key activities that developers engage in during code assessments. This harmonious integration of innovation and the familiar aspects of coding empowers developers to refine their coding practices efficiently and effectively. Ultimately, Forge represents a significant leap forward in how code reviews can be conducted in a collaborative and engaging manner.

Patched is a managed service designed to enhance various development processes by leveraging the open-source Patchwork framework, addressing tasks such as code reviews, bug fixes, security updates, and documentation. By utilizing advanced large language models, Patched enables developers to design and execute AI-driven workflows, referred to as "patch flows," which systematically oversee tasks post-code completion, thereby elevating code quality and accelerating development cycles. The platform boasts a user-friendly graphical interface and a visual workflow builder, making it easy to tailor patch flows without the need to manage infrastructure or LLM endpoints. For those who prefer self-hosting, Patchwork includes a command-line interface agent that seamlessly fits into current development practices. Additionally, Patched places a strong emphasis on privacy and user control, providing organizations the ability to deploy the service within their own infrastructure while using their specific LLM API keys. This amalgamation of features not only promotes process optimization but also ensures that developers can work securely and with a high degree of customization. The flexibility and security offered by Patched make it an attractive option for teams seeking to enhance their development workflows efficiently.

Fynix operates as an advanced AI-powered platform designed to boost the efficiency of software development by offering intelligent coding assistance and agent-based code evaluations. This innovative tool integrates effortlessly with popular IDEs, including VS Code, and boasts features such as context-aware autocomplete, the ability to input natural language for code corrections and translations, and automatic visual representations of code flow. With its Code Assistant capability, Fynix empowers developers to write cleaner and more efficient code at a faster rate, while the upcoming Code Quality Agent aims to enhance bug detection and maintain coding standards. Supporting multiple programming languages and frameworks, along with compatibility with tools like Jira, Fynix emerges as a versatile solution that promotes better coding practices and encourages team collaboration. As developers continuously seek to refine their skills and produce high-quality code, Fynix has established itself as a vital partner in the evolving realm of software development, ensuring that teams can work more effectively together. Ultimately, the platform represents a significant advancement in the tools available to developers striving for excellence in their craft.

Diamond is an advanced AI-powered tool specifically crafted for code reviews, offering quick and actionable feedback on every pull request, which significantly boosts code quality and accelerates development processes. It swiftly identifies a variety of potential issues such as logical bugs, security vulnerabilities, performance concerns, and documentation discrepancies, allowing development teams to focus more on coding rather than on tedious manual inspections. With its user-friendly integration, Diamond eliminates the complexities typically associated with setup, delivering relevant, context-aware recommendations without the overwhelming noise often present in other AI applications. Users can customize their review parameters by uploading desired style guides and filtering out unnecessary comments, resulting in a more efficient and organized review workflow. Moreover, Diamond provides insightful analytics on review metrics, categorizing issues and suggesting fixes that can be applied instantly, streamlining the entire review procedure. By leveraging Diamond's capabilities, teams can significantly improve their collaborative efforts and uphold a high level of code quality throughout their projects, ultimately fostering a more productive development environment. This innovative tool not only saves time but also enhances overall project outcomes.

Codacy serves as an automated tool for code reviews, utilizing static code analysis to pinpoint issues, which in turn enables engineering teams to conserve time and address technical debt effectively. By integrating effortlessly with existing workflows on various Git providers, as well as platforms like Slack and JIRA through Webhooks, Codacy ensures that teams receive timely notifications regarding security vulnerabilities, code coverage, duplicate code, and the complexity of code with each commit and pull request. Additionally, the tool offers advanced metrics that shed light on the overall health of projects, team performance, and other key indicators. With the Codacy Command Line Interface (CLI), teams can perform code analysis locally, allowing them to access results without having to navigate to their Git provider or the Codacy web application. Supporting over 30 programming languages, Codacy is available in both free and enterprise versions, whether in the cloud or self-hosted, making it a versatile solution for various development environments. For more information and to explore its features, visit https://www.codacy.com/. Furthermore, adopting Codacy can significantly streamline your development process and enhance collaboration among team members.

Enhance your development workflow by implementing an automated system for creating pull request summaries. Upon initiating a pull request, you will instantly receive a brief summary of the changes, streamlining your ability to grasp the significance of both minor and major updates. This functionality is particularly beneficial as it allows for rapid understanding, which is crucial for more substantial modifications. The time-consuming nature of code reviews often arises from the back-and-forth communication necessary between reviewers and authors about minor adjustments that could easily be automated. By utilizing the command /wtd to comment on specific lines, What The Diff will suggest the necessary changes directly within the pull request, allowing you to approve them with a simple click. Furthermore, What The Diff analyzes the alterations in your pull requests and offers a summary in clear, uncomplicated terms, thus negating the need for manually crafted summaries. With its extensive training on a wide variety of coding languages, it is compatible with nearly every programming language you might use. The GitHub app can be installed at no cost, allowing you to explore its capabilities across your repositories, making it an indispensable resource for fostering team collaboration. By adopting this innovative technology, you can significantly alleviate the demands of the code review process, ultimately leading to a more efficient development cycle. This will not only enhance productivity but also improve team communication and project outcomes.