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Z-Index Manager

Track every z-index value in one place, see the stacking order at a glance, and copy the scale you need.

Stacking order, back to front

Why z-index gets confusing

A z-index only competes with its siblings. It has no effect unless the element is positioned (position: absolute/fixed or relative with a z-index), or a flex or grid item. This creates a new stacking context, which is why a modal with z-index: 9999 can still end up behind a plain header.

Keeping the values on a small, named scale stops the arms race. Most designs need fewer than ten layers.

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What Is Z-Index Manager?

The Z-Index Manager keeps your stacking order sane: name each layer, assign values, and see the whole stack visualized from back to front. Warnings flag magic numbers and collision-prone values, and one click exports tidy CSS variables for your project.

Who Uses the Z-Index Manager?

Front-end teams use it to document layer systems, stop z-index arms races, and review stacking in pull requests.

How to Use the Z-Index Manager

  1. Add a named layer for each stacked element.
  2. Assign values and watch the stack visualization update.
  3. Resolve any warnings about risky or duplicate values.
  4. Export the stack as CSS variables.

Why Choose Our Z-Index Manager?

  • Named layers replace scattered magic numbers
  • Visual stack makes ordering obvious
  • Warnings plus CSS variable export for clean code

Try the Z-Index Manager above — it is free, fast, and works on any device. Bookmark this page to return whenever you need it.