Z-Index Visualizer

Z-Index Visualizer is the ultimate interactive tool for developers, designers, and students who want to truly understand how CSS z-index and stacking contexts work. Add as many layers as you need, assign any z-index value — positive, negative, or zero — and instantly see how elements stack on top of each other on a live canvas. No more guesswork about which layer appears on top. The intuitive stacking order panel shows a beautiful 3D-style layered view alongside a z-index axis, making it effortless to understand the relationship between elements at a glance. Select any layer to edit its z-index with a smooth slider, quick preset buttons, or by typing any integer directly. Watch the canvas update in real time as you tweak values. Tap any layer card in the layer list to increment, decrement, or jump to common z-index values like 0, 1, 10, 100, or 999. Built with a clean, light-themed UI and silky animations, this app makes learning and demonstrating CSS stacking context concepts visually delightful. No internet connection required. No ads. No persistent storage. Pure, focused, offline-ready functionality for every developer and CSS learner. Perfect for frontend developers debugging layout issues, teachers explaining stacking contexts, and students learning CSS fundamentals hands-on.