List of the Top 25 Free Code Review Tools in 2026

Aikido serves as an all-encompassing security solution for development teams, safeguarding their entire stack from the code stage to the cloud. By consolidating various code and cloud security scanners in a single interface, Aikido enhances efficiency and ease of use. This platform boasts a robust suite of scanners, including static code analysis (SAST), dynamic application security testing (DAST), container image scanning, and infrastructure-as-code (IaC) scanning, ensuring comprehensive coverage for security needs. Additionally, Aikido incorporates AI-driven auto-fixing capabilities that minimize manual intervention by automatically generating pull requests to address vulnerabilities and security concerns. Teams benefit from customizable alerts, real-time monitoring for vulnerabilities, and runtime protection features, making it easier to secure applications and infrastructure seamlessly while promoting a proactive security posture. Moreover, the platform's user-friendly design allows teams to implement security measures without disrupting their development workflows.

ZeroPath is the AI-native SAST that finds vulnerabilities traditional tools miss. We built it because security shouldn't overwhelm developers with noise. Unlike pattern-matching tools that flood you with false positives, ZeroPath understands your code's intent and business logic. We find authentication bypasses, IDORs, broken auth, race conditions, and business logic flaws that actually get exploited and missed by traditional SAST tools. We auto-generate patches and pull requests that match your project's style. 75% fewer false positives, 200k+ scans run per month, and ~120 hours saved per team per week. Over 750 organizations use ZeroPath as their new AI-native SAST. Our research has uncovered critical vulnerabilities in widely-used projects like curl, sudo, OpenSSL, and Better Auth (CVE-2025-61928). These are the kinds of issues off-the-shelf scanners and manual reviews miss, especially in third-party dependencies. ZeroPath is an all-in-solution for your AppSec teams: 1. AI-powered SAST 2. Software Composition Analysis with reachability analysis 3. Secrets detection and validation 4. Infrastructure as Code scanning 5. Automated PR reviews 6. Automated patch generation and more...

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.

GitGuardian is a worldwide cybersecurity company dedicated to providing code security solutions tailored for the DevOps era. As a frontrunner in the realm of secrets detection and remediation, their products are employed by hundreds of thousands of developers across various sectors. GitGuardian empowers developers, cloud operations teams, and security and compliance experts to protect software development, ensuring consistent and global policy enforcement across all systems. Their solutions continuously monitor both public and private repositories in real-time, identifying secrets and issuing alerts to facilitate swift investigation and remediation efforts. Additionally, the platform streamlines the process of maintaining security protocols, making it easier for teams to manage their codebases effectively.

GitHub remains the foremost platform for developers around the world, celebrated for its robust security, impressive scalability, and strong community engagement. By becoming part of the vast network of millions of developers and organizations, you can play a role in creating the software that propels society forward. Engage and collaborate with some of the most innovative communities while taking advantage of our exceptional tools, support, and services. If you are managing multiple contributors, consider utilizing our complimentary GitHub Team for Open Source feature. Furthermore, GitHub Sponsors is designed to help finance your initiatives and projects effectively. We are excited to bring back The Pack, a program that offers students and educators free access to top-notch developer tools throughout the academic year and beyond. In addition, if you are affiliated with a recognized nonprofit, association, or a 501(c)(3) organization, we provide a discounted Organization account to help further your mission. Through these initiatives, GitHub continues to empower a diverse range of users in their software development endeavors, fostering a more inclusive tech community. With ongoing support and resources, GitHub is dedicated to enhancing the development experience for everyone involved.

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.

Code reviews can be straightforward and efficient, and Review Board streamlines the code review experience, allowing you to conserve time, resources, and mental effort, so you can focus on creating outstanding software. You have the capability to review a wide range of items, including code, documents, artwork, and additional materials. Remember, your project is not limited to just code; it encompasses critical components such as documentation, design visuals, website layouts, interface mockups, release notes, and feature specifications, among other materials. Incorporating visuals can significantly improve your review experience, as an image can often express intricate concepts more effectively than text alone. By simply dragging and dropping one or more images into your review request, you ensure they are instantly available for evaluation. Team members can interact with these images directly, offering comments right where they are needed most. Any changes made to the images can be effortlessly monitored by uploading updated versions and comparing them through a variety of visual diff options. Furthermore, you may encounter other written materials relevant to your project that exist outside of your source code directory, providing even greater flexibility and depth to the review process. This multifaceted approach ensures that every aspect of your project is thoroughly assessed and improved upon.

The Review Assistant is an extension for Visual Studio that facilitates code reviews, allowing users to efficiently create and manage review requests right from the integrated development environment. Developed by Devart, this tool supports multiple version control systems such as TFS, Subversion, Git, Mercurial, and Perforce. With a 30-day unlimited trial and a free plan, users can dive in quickly, often setting it up in as little as five minutes. It is a crucial tool for achieving high-quality code by reducing the need for toggling between various tools and environments. By integrating the review process directly into the development workflow, it lets developers leave feedback right in the code editor. Additionally, the Code Review Board window consolidates all reviews and related discussions, making the review process more organized and fostering improved teamwork. This centralization not only enhances communication among team members but also significantly boosts overall productivity during code reviews. Ultimately, the Review Assistant streamlines the entire process, making it easier for teams to collaborate effectively on their projects.

Sourcegraph is the code understanding platform designed for the era of AI-accelerated software development. As codebases grow faster than teams can reason about them, Sourcegraph provides the context and tooling needed to maintain clarity and control. Its Deep Search enables natural-language exploration of code, while Code Search delivers exhaustive, enterprise-scale results across any repository or code host. Batch Changes and AI workflows allow teams to automate large-scale refactors, fixes, and updates with confidence. Sourcegraph MCP extends this power directly to coding agents, improving accuracy and reducing failure in complex or legacy systems. With robust security, zero data retention, and enterprise features like SSO and RBAC, Sourcegraph is trusted by world-class engineering teams. It enables organizations to understand their code deeply, automate safely, and innovate faster at scale.

Reshift stands out as an essential tool specifically crafted for Node.js developers, aimed at bolstering the security of their custom coding projects. By leveraging this innovative solution, developers can significantly improve their chances of identifying and fixing problems before code is submitted, boasting a fourfold increase in such outcomes. It integrates security measures directly into the development workflow, effectively detecting and addressing vulnerabilities during the compile stage. This state-of-the-art security tool works in harmony with developers, ensuring that their productivity remains uninterrupted. With its integration into developers' IDEs, Reshift enables immediate identification of security issues, facilitating necessary corrections before any code is merged. For those without a strong background in security, Reshift makes it easy to weave security protocols into the development process. It is particularly beneficial for growing software firms looking to elevate their security posture, making it ideal for small to medium-sized enterprises that may lack deep security expertise. Not only does Reshift enhance the security of code, but it also provides valuable insights into effective secure coding practices. Additionally, Reshift comes equipped with extensive resources and industry best practices, allowing developers to educate themselves about security while coding. This dual emphasis on learning and practical implementation renders Reshift an indispensable tool for any development team aiming to improve their security framework. Ultimately, by adopting Reshift, developers not only protect their applications but also cultivate a culture of security awareness within their teams.

Phabricator includes post-commit auditing, which can act as a central workflow, and when paired with Herald, it allows for rule-based triggers that facilitate further code review. You can manage features, address bugs, and allocate tokens as incentives for contributions. Maniphest allows you to customize input forms, leverage custom fields, and boasts a powerful API. Phriction functions as a wiki for documentation, enabling you to record information and revert changes when needed. Implement advanced drag-and-drop capabilities to ensure your project is efficiently organized with Workboards. With Conpherence, you can easily keep track of your team's lunch arrangements with just a few clicks. As your organization expands, monitor activities with Herald, which notifies you of critical changes, such as edits to certain files. The arcanist command line tool grants CLI access to nearly all of Phabricator's features. Furthermore, the Conduit API lets you develop scripts that interact with Phabricator through an HTTP JSON interface, streamlining task automation and boosting productivity. In conclusion, Phabricator's comprehensive suite of tools is specifically crafted to optimize your development workflow and improve collaboration among team members. By utilizing these features, teams can enhance their efficiency and foster a more cohesive working environment.

DeepSource simplifies the task of detecting and fixing code problems during reviews, addressing potential bugs, anti-patterns, performance issues, and security threats. Its integration with Bitbucket, GitHub, or GitLab is quick and easy, taking less than five minutes to set up, which adds to its convenience. It accommodates a variety of programming languages, including Python, Go, Ruby, and JavaScript, and extends its support to all major languages alongside Infrastructure-as-Code features, secret detection, and code coverage. This comprehensive support means DeepSource can be your go-to solution for safeguarding your code. By leveraging the most sophisticated static analysis platform, you ensure that bugs are caught before they reach production. With an extensive set of static analysis rules unmatched in the industry, your team will have a centralized hub for effectively monitoring and maintaining code quality. Additionally, DeepSource automates code formatting, helping to keep your CI pipeline free from style-related disruptions. It also offers the capability to automatically generate and apply fixes for identified problems with minimal effort, significantly boosting your team's productivity and efficiency. Moreover, by streamlining the code review process, DeepSource enhances collaboration among developers, leading to higher quality software outcomes.

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.

Enhance your productivity by leveraging Upsource to evaluate your code and track your progress, which enables you to focus on improving your projects. Participate in discussions and manage reviews effortlessly within your IDE, while also exploring new changes through a browser with user-friendly IDE-like functionalities. You can reply via email to stay informed on crucial updates, making collaboration smoother than ever. Work together on modifications, tag team members, respond to feedback, and achieve milestones as you discover new features and support your colleagues. Seamlessly integrate Upsource into your processes by connecting it with issue trackers, CI servers, and syncing with GitHub, ensuring it fits right into your existing workflow. Upsource is designed to scale with your team, so whether your group grows or your projects increase, it will adapt to your evolving needs. If you’re on the lookout for a powerful code review tool, insightful analysis of your project’s history, or a collaborative platform to boost your development skills, Upsource offers a comprehensive solution that meets all these requirements! Additionally, its intuitive interface ensures that teams of any size can adopt it with ease, facilitating a smooth transition to improved workflows.

Combine your team's code assessments with automated style recommendations across various programming languages on one comprehensive platform. Integrating your repository is a breeze and can be done in just a few clicks, with our review process now faster than ever before. Teams have the flexibility to either follow suggested style guidelines or modify each tool to better suit their specific needs. By leveraging auto-fixing capabilities to address style inconsistencies, you can devote more time to delivering valuable feedback. Stickler CI ensures your code remains on our servers only during the review period, maintaining data security; once the review comments are finalized, your code is swiftly removed from our systems. Gradually improve and standardize your code quality with every pull request, guaranteeing that your coding standards are uniformly upheld throughout ongoing developments without disrupting your team’s productivity. Achieve consistency in both code quality and style through the automatic application of style and quality validation tools. You can choose to maintain default configurations or adapt linters to fit your established coding standards, which simplifies the process of upholding high-quality code for your team. This approach not only nurtures a collaborative atmosphere but also encourages adherence to coding best practices, ultimately enhancing the overall performance of your development efforts. With these features, your team can work more efficiently while ensuring that best practices are integrated into every aspect of the coding lifecycle.

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.

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.

For organizations implementing GitHub Actions within their CI/CD frameworks who are wary about pipeline security, the StepSecurity platform presents a comprehensive solution. This platform facilitates the integration of network egress controls and bolsters the security of CI/CD infrastructures tailored specifically for GitHub Actions runners. By pinpointing potential risks within CI/CD processes and uncovering misconfigurations in GitHub Actions, users are empowered to protect their workflows effectively. Furthermore, it enables the standardization of CI/CD pipeline as code files through automated pull requests, simplifying the overall process. In addition, StepSecurity offers runtime security strategies to counter threats like the SolarWinds and Codecov incidents by efficiently blocking egress traffic via an allowlist method. Users gain real-time, contextual insights into network and file events during all workflow executions, which enhances monitoring and response capabilities. The ability to manage network egress traffic is further refined with detailed job-level policies and overarching cluster-wide regulations, significantly boosting security measures. It's crucial to acknowledge that many GitHub Actions often suffer from inadequate maintenance, which can lead to substantial risks. While companies might choose to fork these Actions, maintaining them can become an expensive endeavor. By outsourcing the duties of assessing, forking, and sustaining these Actions to StepSecurity, businesses not only lower their risks significantly but also conserve valuable time and resources. Ultimately, this collaboration not only improves security but also allows teams to concentrate on innovation instead of grappling with outdated tools, paving the way for a more efficient development environment.

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.

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.

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.

Entelligence AI operates as a robust engineering intelligence platform that harnesses the power of artificial intelligence to enhance development workflows, promote collaboration, and boost productivity across the software development lifecycle. By employing intelligent agents, it streamlines the code review and pull request (PR) evaluation processes, which leads to shorter review times, early detection of bugs, and improved engineering productivity. The platform's Deep Review feature conducts thorough analyses of intricate issues spanning multiple files through an extensive examination of the entire codebase, providing detailed PR summaries, insightful comments, and immediate fixes. Additionally, Entelligence AI offers essential performance metrics that assess team interactions, track sprint progress, and evaluate code quality, delivering up-to-the-minute insights into individual engineer performance, review comprehensiveness, and sprint outcomes. Moreover, its cutting-edge self-updating documentation functionality converts code into user-friendly documentation, automatically updating with each new commit to guarantee that developers can access the latest information. This extensive array of features not only streamlines the software development process but also ensures that teams can maintain high standards of clarity and efficiency in their projects. Ultimately, Entelligence AI stands out as an essential resource for contemporary software development teams striving for operational excellence and collaboration.

The Code Registry is a cutting-edge platform that utilizes artificial intelligence to deliver comprehensive code intelligence and analysis, enabling both companies and individuals without technical backgrounds to gain thorough insights into their software codebases, irrespective of their programming skills. By connecting to code repositories like GitHub, GitLab, Bitbucket, or Azure DevOps, or by simply uploading a zip file of the code, the platform creates a secure "IP Vault" and performs a detailed automated assessment of the complete codebase. This evaluation produces a variety of reports and dashboards, which feature a code-complexity score that measures the sophistication and maintainability of the code, an assessment of open-source components to identify dependencies, licensing concerns, and any outdated or vulnerable libraries, along with a security review that highlights possible vulnerabilities, insecure setups, or risky dependencies. Moreover, it offers a “cost-to-replicate” estimation that calculates the time and resources necessary to recreate or replace the software entirely. By providing these insights, the platform empowers users with the essential tools to improve their understanding of code quality and security, ultimately leading to better-informed decisions throughout the software development process. This robust functionality not only supports developers in identifying weaknesses but also aids organizations in strategically managing their software assets.