Complexity Indicator helps developers analyze and visualize code complexity in real time. Get actionable insights like cyclomatic complexity, maintainability index, and nesting depth directly inside VS Code.

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Complexity Indicator is a VS Code extension that visualizes code complexity metrics in real time, including cyclomatic complexity, maintainability index, and nesting depth. It aims to help developers identify when code is becoming unmaintainable and decide when refactoring is needed.

Know when your code becomes unmaintainable

is it only file based or can it tell about entire codebase in general as well ?

Unmaintainable code isn’t about complexity alone — it’s about coupling + lack of clear boundaries. Once changes start propagating unpredictably, the system stops being predictable and becomes fragile.

Cool extension. Will definitely consider using it.

As a person who’s into DS/ML, this was actually something I needed.