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A frontend developer shares the journey of building Breakpoint Overlay, an open-source widget that displays active CSS breakpoints in real-time during development. The tool addresses the inefficiency of manually checking viewport widths during responsive design implementation by showing breakpoint information as an unobtrusive badge overlay. Built with zero dependencies using Shadow DOM for encapsulation and requestAnimationFrame for performance, it features keyboard shortcuts and viewport metrics. The author discusses technical decisions like choosing resize events over ResizeObserver, managing scope creep during MVP development, and learning monorepo architecture. The tool is available on GitHub and npm.

How I Built a Tiny Tool That Makes Responsive Design Feel Effortless

Developer's Journey is a place where we share our stories, career growth, technical adventures, and personal milestones, no matter where we are in our journey.

Developer's Journey

A Tiny Tool That Makes Responsive Design Feel Effortless.

A Tiny Tool That Makes Responsive Design Feel Effortless.

Would be super nice with more images… Respect for making it!

True JS way. If u can add some new decency to your project - do it.

AI-generated blog posts lead to a generic and very generalised tone and content. It looks and sounds like yet another shiny product Ad instead of informative insights.

Cool sounds like a neat project that’s useful too.