Best Code Review Tools for Ruby

ZeroPath (YC S24) is an AI-native application security platform that delivers comprehensive code protection beyond traditional SAST. Founded by security engineers from Tesla and Google, ZeroPath combines large language models with deep program analysis to deliver intelligent security testing that finds real vulnerabilities while dramatically reducing false positives. Unlike traditional SAST tools that rely on pattern matching, ZeroPath understands code context, business logic, and developer intent. This enables identification of sophisticated security issues including business logic flaws, broken authentication, authorization bypasses, and complex dependency vulnerabilities. Our comprehensive security suite covers the application security lifecycle: 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... ZeroPath integrates seamlessly with GitHub, GitLab, Bitbucket, Azure DevOps and many more. The platform handles codebases with millions of lines across Python, JavaScript, TypeScript, Java, Go, Ruby, Rust, PHP, Kotlin and more. Our research team has been successful in finding vulnerabilities like critical account takeover in better-auth (CVE-2025-61928, 300k+ weekly downloads), identifying 170+ verified bugs in curl, and discovering 0-days in production systems at Netflix, Hulu, and Salesforce. Trusted by 750+ companies and performing 200k+ code scans monthly.

Quickly assess the overall code quality of your project, examine recent commits, and identify the most problematic files with CodeFactor. This tool will monitor new and resolved issues for every commit and pull request, prioritizing the most critical problems by considering factors like issue code size, frequency of file changes, and overall file size, allowing you to focus on what truly matters. You can easily create and manage issues or comments directly within code files or on the project issues pages. Additionally, CodeFactor provides updates on the status of pull requests for both GitHub and Bitbucket. Users can conveniently toggle the inspection feature for any branch of the repository as needed. Furthermore, CodeFactor integrates with Slack to deliver immediate notifications regarding code quality for every commit made in a branch or pull request. To get started, simply navigate to the repository settings page for installation. The pricing is straightforward and based on the number of private repositories, ensuring transparency with no surprise fees. This makes for a smooth incorporation into your existing workflow, enhancing overall efficiency and collaboration.