SonarQube is a comprehensive code quality and security platform that analyzes code in 35+ programming languages to detect issues and enforce standards for maintainability, reliability, and security. The platform provides automated code review capabilities that scan all branches, pull requests, and merges as code is committed or pushed, applying expertly curated rules and industry compliance standards. It offers both cloud-based (SonarQube Cloud) and self-hosted (SonarQube Server) deployment options. Key capabilities include Static Application Security Testing (SAST) with taint analysis to detect injection vulnerabilities like SQL injection, XSS, and SSRF; Software Composition Analysis (SCA) for dependency security; secrets detection; and Infrastructure as Code (IaC) scanning. The platform features AI CodeFix, which uses large language models to generate context-aware fix suggestions for bugs and security issues directly within developer workflows. SonarQube integrates seamlessly into CI/CD pipelines and provides real-time feedback in IDEs and DevOps tools. It tracks quality metrics including technical debt, maintainability, and reliability across entire codebases. The platform supports custom detection rules and policies to enforce organization-specific security standards. SonarQube Cloud offers zero maintenance with automatic updates, 99.9% uptime SLA, and SOC 2 Type II certification, while SonarQube Server provides complete data residency control and air-gapped deployment options.