FindBugs vs SonarLint: What are the differences?

Developers describe FindBugs as "An open-source static code analyser". It detects possible bugs in Java programs. Potential errors are classified in four ranks: scariest, scary, troubling and of concern. This is a hint to the developer about their possible impact or severity. On the other hand, SonarLint is detailed as "An IDE extension to detect and fix issues as you write code". It is an IDE extension that helps you detect and fix quality issues as you write code Like a spell checker, it squiggles flaws so that they can be fixed before committing code..

FindBugs and SonarLint belong to "Code Review" category of the tech stack.