Best Code Review Tools with a Free Trial of 2025

Codeium is the modern code superpower. It's a free AI-powered code acceleration toolkit. Codeium currently provides AI-generated autocomplete in more than 20 programming languages (including Python and JS, Java, TS, Java and Go) and integrates directly to the developer's IDE (VSCode, JetBrains or Jupyter notebooks. Colab, Vim / Neoovim, etc. Codeium generates multiline code suggestions in a matter of seconds. This will eliminate the need to search for APIs and documentation, write boilerplate and unit test scripts, and many other tedious or frustrating tasks. Codeium is a training platform that allows you to quickly develop on billions of lines. It also helps you stay in the flow and lets you become the best coder you can be.

Increase software development and delivery speed using generative AI assistance with enterprise security and privacy protected. Gemini Code Assist generates code blocks and functions as you type. Code assistance is available for many popular IDEs such as Visual Studio Code and JetBrains IDEs including IntelliJ, PyCharm and GoLand. It also supports 20+ programming language, including JavaScript, Python and C++. You can chat with Gemini Code Assistant using a natural language interface to receive answers to your coding queries or guidance on best coding practices. Chat is available on all supported IDEs. Gemini Code Assist allows enterprises to customize the software by using their own codebases and knowledge bases. Gemini Code Assist allows for large-scale changes in entire codebases.

High quality code must be sent. Code can be reviewed, discussed, changed, shared knowledge, and identified defects in SVN, Git and Mercurial, CVS and Perforce. Formal, workflow-based, and quick code reviews can be created. You can assign reviewers from your entire team. Any code review can be turned into a threaded discussion. You can comment on specific source lines, files or entire changesets. Unified views of your code activity allow you to focus on the important things. You can improve code quality by knowing which parts of your codebase have not received sufficient review. A quick overview of review status and who might be preventing reviews. You can access a complete audit trail that includes all code review details down to the history for a particular review. You can customize your Jira Software workflow so that you know when to stop if there is an open review. Upgrade your workflow with Jira Software and Bitbucket Server. Bamboo, Bitbucket Server and hundreds of other developer tools are available.

GitGuardian is a global cybersecurity startup focusing on code security solutions for the DevOps generation. A leader in the market of secrets detection and remediation, its solutions are already used by hundred thousands developers in all industries. GitGuardian helps developers, cloud operation, security and compliance professionals secure software development, define and enforce policies consistently and globally across all their systems. GitGuardian solutions monitor public and private repositories in real-time, detect secrets and alert to allow investigation and quick remediation.

Visual Expert is a static code analyzer for Oracle PL/SQL, SQL Server T-SQL and PowerBuilder. It identifies code dependencies to let you modify the code without breaking your application. It also scans your code to detect security flaws, quality, performance and maintenability issues. Identify breaking changes with impact analysis. Scan the code to find security vulnerabilities, bugs and maintenance issues. Integrate continuous code inspection in a CI workflow. Understand the inner workings and document your code with call graphs, code diagrams, CRUD matrices, and object dependency matrices (ODMs). Automatically generate source code documentation in HTML format. Navigate your code with hyperlinks. Compare two pieces of code, databases or entire applications. Improve maintainability. Clean up code. Comply with development standards. Analyze and improve database code performance: Find slow objects and SQL queries, optimize a slow object, a call chain, a slow SQL query, display a query execution plan.

Sourcegraph shows you the repositories that you use, stored in any code host or search across the open-source universe. With smart filters and Code Intelligence, you can quickly find answers with regular, structural, or literal expression searches. Extensions allow you to connect all your tools, including test coverage, 1-click file in editor, custom highlight, and information from other services. To help engineers learn unfamiliar code faster, create living documentation using Markdown and live query code. Use collaborative, shareable notebooks to navigate through your codebase and resolve issues. You can embed HTML in notebooks wherever you can, just like your internal documentation. This will allow you to spend less time updating outdated docs. To learn more about the code and repository structure, search across all code hosts.

Software projects are often complex. The law of entropy makes it more complicated. Developers easily get lost in the dependency network, and they tend to create designs that don't stand the test of time. Softagram automatically illustrates how dependencies change. Automated integration allows you to decorate pull requsts in GitHub, Bitbucket and Azure DevOps with a dependency report. This report pops up as a comment within the tool you use. The analysis also includes other aspects, such as open source licenses or quality. You can customize it to meet your needs. Softagram Desktop app, which is designed for advanced software understanding as well as auditing software usage, can also be used to efficiently perform software audits.

CodeScene's powerful features go beyond traditional code analysis. Visualize and evaluate all the factors that influence software delivery and quality, not just the code itself. Make informed, data-driven decisions based on CodeScene’s actionable insights and recommendations. CodeScene guides developers and technical leaders to: - Get a holistic overview and evolution of your software system in one single dashboard. - Identify, prioritize, and tackle technical debt based on return on investment. - Maintain a healthy codebase with powerful CodeHealth™ Metrics, spend less time on rework and more time on innovation. - Seamlessly integrate with Pull Requests and editors, get actionable code reviews and refactoring recommendations. - Set Improvement goals and quality gates for teams to work towards while monitoring the progress. - Support retrospectives by identifying areas for improvement. - Benchmark performance against personalized trends. - Understand the social side of the code, measure socio-technical factors like key personnel dependencies, knowledge sharing and inter-team coordination.

CodeSandbox aims to make it easier for you to express your ideas with code, and to validate them. It also removes the hassles of setting up development tooling and sharing your project. Join us to help build the future of web coding. Over 4M developers use the platform each month. This includes organizations like Shopify and Atlassian. Since its launch, creators have created over 35M apps. It's used in thousands of open-source projects like React, Vue and Babel. You can invite your friends, colleagues, or team to join you or simply view your creation by using a URL. Use any of 1M+ packages for building real, powerful applications quickly and efficiently. Import and run repos directly from GitHub or choose from hundreds of templates to start in seconds. Boxy, CodeSandbox's AI-powered coding assistant, is now available to all Pro subscriptions.

Pull request reviews that are privacy-focused and contextual, with code suggestions for each line of code and an interactive chat that becomes smarter over time. The diff in the Pull Request is transformed into a summary that helps you understand the intention of the changes. Creates automated release note, which can be included in the release documentation. A detailed analysis of code changes, line-byline, provides precise and actionable recommendations ready to be committed. Ask the bot questions within your code lines. Provide more context and let it write the code. The more you interact with the bot, it will become smarter. Reduce cycle time by reducing the number of reviews and generating high-quality suggestions for code changes. Your data is kept confidential and used to fine-tune your reviews. The system refines the reviews based on your interactions.

Codacy is an automated code review tool. It helps identify problems through static code analysis. This allows engineering teams to save time and tackle technical debt. Codacy seamlessly integrates with your existing workflows on Git provider as well as with Slack and JIRA or using Webhooks. Each commit and pull-request includes notifications about security issues, code coverage, duplicate code, and code complexity. Advanced code metrics provide insight into the health of a project as well as team performance and other metrics. The Codacy CLI allows you to run Codacy code analysis locally. This allows teams to see Codacy results without needing to check their Git provider, or the Codacy app. Codacy supports more than 30 programming languages and is available in free open source and enterprise versions (cloud or self-hosted). For more see https://www.codacy.com/

Collaborator allows you to customize and scale your peer review process for code and documents. Collaborator is the best peer code and document review tool for developers who take software quality very seriously. * Comprehensive Review Capabilities: Review source code, design documents, requirements, user stories and test plans in one tool. * Proof of Review – Ensure that you have electronic signatures and detailed reports in order to comply with regulatory compliance standards. * Support for 11 SCMs – including Git, SVN and TFS, Perforce. CVS, ClearCase. RTC. * Integrations - with GitHub GitLab, Bitbucket Jira Eclipse Visual Studio, Bitbucket and Bitbucket * Real-Time Updates-- Threaded chat displays conversations and highlights changes and defects during code reviews.

DeepSource allows you to automatically identify and fix bugs in your code during code reviews. This includes security flaws, anti-patterns and bug risks. It takes less that 5 minutes to create your Bitbucket or GitLab account. It works with Python, Go, Ruby and JavaScript.

You can customize the code review rules sets to match your standards. You can focus on the important things by avoiding bugs that aren't important to you. Code reviews can be performed without worrying about security. Codegrip doesn't store any code during automated code reviews. Keep track of the progress of your project. You can receive pull request notifications and code quality reports in any Slack channel you choose. A dashboard view allows you to manage multiple projects from one place. With the help of simple-to-understand graphs and parameters, you can track the changes in code quality over time. OWASP is a consensus on the most important security risks for web and mobile apps. It provides guidance to developers and security professionals about the most common vulnerabilities found in web applications that are easy to exploit.

Collaboration with AI and each other is made easy without having to switch between tools. This reduces distractions and context switches. Pullflow synchronizes your user identities and code review activity across GitHub Slack and VS Code. This allows you to communicate naturally across platforms. Take action wherever you are and return to your flow. Pullflow integrates GitHub Actions, external CI/CD tools, GitHub apps and more to give you a single view on your pull request, from the draft stage to the test and deployment phase. Pullflow can take care of your quick actions with a simple chat mention or IDE shortcut. Request review, add/remove label, give feedback, accept, and more without a trip on GitHub.

Ellipsis can review, write, and answer questions about your source codes. Ellipsis uses LLMs to provide thoughtful code reviews, summaries and easy-to accept suggestions. We'll consider your style guide while reviewing. Open an issue and assign it to Ellipsis. This will automate simple changes and bug fixes. You'll receive a pull request in a matter of minutes. Ellipsis can help you ship faster by addressing comments left in pull requests. We'll translate the comments and create tested, working code. Ellipsis does not store or train your source code. It will never commit your default branch and will only open new pull requests or add new commits when you explicitly ask it to.

StepSecurity is the platform for you if you use GitHub Actions to perform CI/CD. Implement network egress and CI/CD security for GitHub Actions runner. Discover CI/CD security risks and GitHub action misconfiguration. Automated pull requests can standardize GitHub Actions CI/CD as code files. Allowlists block egress traffic to prevent SolarWinds or Codecov CI/CD attacks. Instant contextualized insight in network and file events across all workflow runs. Control network egress with granular policies at the job level and default cluster-wide. Many GitHub Actions do not receive maintenance and are therefore risky. These Actions are forked by enterprises, but the ongoing maintenance is costly. StepSecurity can help enterprises reduce risk and save time by allowing them to delegate the review, forking and maintenance of Actions.

Squire will write the pull request descriptions. Keep your team on the same page with a clear description. Squire's agentic workflow allows a team to review your PR in the context of your entire codebase. It can catch many issues, such as systemic breaking changes or security concerns. We improve code quality, and get your PR in production. Squire is an agent that works with you to review PRs and learn your preferences for code reviews. Squire adapts to your style by learning how your team reviews code. It does this through explicit configurations and learning from the interactions of your team. Map and synchronize responsibility and ownership across your entire engineering stack. Maintain compliance by applying rules to your engineering components.

Streamline Git commands to stack pull requests seamlessly from your terminal. Visually edit and create stacked pull requests without leaving the IDE. Keep track of all PRs and review requests in one inbox. Graphite AI's codebase aware feature provides immediate feedback and actionable suggestions on every pull request. Eliminate merge conflict and keep your main branches green, regardless of whether you have a team with 10 or 10,000 members. Accelerate the team with powerful real-time developer metrics. A faster and more intuitive Git interface designed to make stacking easy. Run gtcreate again to stack a new branch on top of the previous ones without waiting for them merge into the main. Gt sync will automatically sync your local changes with remote ones, and remove stale branches. Modify your stack to update changes. Graphite will handle all recursive rebasing. Create or update PRs on every branch of your stack using gt submit.

Astronuts, an AI-powered platform for code review, is designed to streamline development by automating code reviews. Developers can initiate code analyses with a single command and receive line-by-line intelligent comments and auto-fix suggestion. The platform provides features such as code quality metrics, change logs, and pull request summaries. All of these are accessible via a user-friendly GUI. Astronuts integrates seamlessly into GitHub. This allows teams to monitor pull requests batch sizes and code quality metrics, reducing review time and minimizing bugs. The platform offers real-time chats for code-related questions, configurable behavior settings and gateway rules that enforce code quality standards. Astronuts is able to cater to a variety of development environments with its support for multiple languages and build systems. The platform offers $5 in credits as a free trial, allowing teams to try out its benefits without any initial costs.