SonarCloud and SonarQube are both valuable tools for writing clean, quality code. Both products share the same underlying static analysis engine to catch bugs and generate code quality metrics, but differ in their hosting and management models. SonarCloud is a cloud-based product that integrates with popular DevOps platforms and provides automatic analysis for many languages, making it ideal for teams with fully cloud-based workflows. On the other hand, SonarQube is an on-premises solution that requires installation and maintenance, but offers more flexibility in terms of language support and extensibility through its plugin ecosystem. SonarCloud does not offer the same level of reporting and governance features as SonarQube, making it better suited for developer-focused workflows, while SonarQube is geared towards enterprise use cases with additional features such as authentication, governance, executive reporting, multiple repository support, and extensibility.