Free visual CSS tool

CSS Mega Menu Builder

Build a real multi-column mega menu inside a mock navigation bar. Choose click or hover mode, edit the columns, then copy working HTML, CSS and JavaScript.

Click mode — click the trigger to open the panel
HTML + CSS + JS

A working mega menu, not a static screenshot

The mock nav bar in the preview is fully interactive. Whichever open mode you pick, the panel genuinely appears and disappears exactly as it would on a live site.

Click or hover mode

Hover mode is pure CSS with zero JavaScript; click mode wires up a real toggle with outside-click and Escape.

Simple content editing

Write your columns as a heading plus a list of links, separated by blank lines — no JSON or markup required.

Copy ready-to-use code

Get clean HTML and CSS, plus JavaScript automatically included only when click mode is selected.

How to build a CSS mega menu

  1. Write your columnsList each column as a heading line followed by its links, with a blank line between columns.
  2. Choose columns and modePick 2 to 4 columns, then decide between click-to-open or hover-to-open behavior.
  3. Style and copySet the panel style and heading accent color, test it live in the mock nav bar, then copy the code.

About mega menus in CSS

A mega menu trades a single narrow dropdown for a wide panel that can show many links, and sometimes images or descriptions, organized into columns. The tricky part is almost never the visual layout — a CSS grid handles that easily — it is deciding how the panel opens. Hover-triggered mega menus feel fast on desktop but are awkward on touch screens, since there is no real hover state to trigger them. Click-triggered menus solve that problem but need a few lines of JavaScript to toggle visibility, close on an outside click, and close on Escape for keyboard users. This builder generates both flavors correctly, so you can choose the one that matches your audience instead of fighting CSS-only hover hacks on mobile.

Column grid

Each column becomes a CSS grid track, so the panel automatically divides evenly across 2 to 4 columns regardless of content length.

Hover mode caveats

Pure CSS hover menus can trap keyboard-only users, so consider click mode if accessibility across all input types matters for your project.

Click mode behavior

The generated script toggles one class on the wrapper element and listens for outside clicks and Escape, mirroring standard dropdown patterns.

Full-width panels

The panel spans past the trigger's own width using negative positioning, which is what makes a mega menu look intentional rather than cramped.

CSS mega menu builder FAQ

How do I edit the mega menu columns?

Use one textarea: the first line of each block is the column heading, the following lines are its links, and a blank line separates one column from the next. The columns control decides how many of those blocks are shown.

What is the difference between click and hover mode?

Hover mode opens and closes the panel purely with CSS :hover, so no JavaScript is required at all. Click mode uses a small JavaScript toggle with outside-click and Escape handling, which tends to work better for touch devices.

Is the live preview actually functional?

Yes. The trigger sits in a mock top navigation bar and the panel genuinely opens below it, using whichever mode you selected, so you can test the real behavior before copying the code.

Does the copied code include JavaScript?

Only when click mode is selected. Hover mode ships as HTML and CSS only, since CSS handles the open and close behavior on its own.

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