SonarLint

IDE extension that performs real-time static analysis as you write code, flagging bugs, vulnerabilities, and code smells before they reach review or production. Works standalone or connected to SonarQube Server or Cloud to keep rules and quality profiles in sync across the team.

Trusted by over 7 million developers worldwide. Unlike basic linters, it detects a broad set of issues across security hotspots, logical defects, and maintainability concerns, with explanations and quick fixes tailored to each finding. Supports both traditional and AI-assisted coding workflows.

Key capabilities:

• 7000+ distinct issue types for Java, JavaScript, TypeScript, Python, C++, C#, PHP, Go, Ruby, Kotlin, and more
• Instant inline feedback with squiggles and quick fixes applied directly in the editor
• Connected mode syncs rules from SonarQube Server or Cloud so teams align on a single standard
• Support for VS Code, JetBrains IDEs, Visual Studio, Eclipse, Cursor, Windsurf, GitPod, and GitHub Codespaces
• Detection of security hotspots and secrets alongside bugs and code smells

Developers rely on it to catch issues during editing rather than in CI, shorten feedback loops, and keep code quality consistent across contributors. Connected mode bridges the gap between local analysis and central SonarQube projects, so new-code focus and quality gates stay aligned from IDE to pipeline.