A Home Assistant dashboard without YAML: a visual editor that works on the dashboard

Updated 7 October 2026

In short. In Mega Dashboard for Home Assistant you don't edit cards in a side form or a YAML file. You tap the thing on the dashboard and its tools appear right there: drag it, resize it, recolour it, add a module from a library of 37 that already shows your own devices. Every step can be undone and every save is kept. It's free.

Mega Dashboard Studio: a selected module on a Home Assistant dashboard with its toolbar and a hint at the bottom — The Studio: a selected module with its toolbar. The hint at the bottom always says what you can do next.

Why YAML gets in the way

Home Assistant can show almost anything, but a dashboard that looks good usually means a dozen custom cards from HACS, card-mod for the styling, YAML for the layout and evenings of reloading to see why something doesn't line up. Every later change starts that over again. The built-in editor has improved a lot, yet anything beyond the standard cards still ends up in YAML.

How editing works in Mega Dashboard

Tap to select. Tap a module and a small toolbar appears above it: ⠿ to drag, ⚙️ for settings, arrows, copy, hide and delete. Tap again to go inside and change one card, then one part of it — a name, an icon, a colour.
Slide to resize. Drag the bar on a module's right edge to ¾, ⅔, ½, ⅓ or ¼ of the row. Narrow modules sit side by side, and on a phone they stack again by themselves.
A library that knows your home. 37 modules — rooms, lights, scenes, cameras, climate, radiators, media, remote, energy, locks, people, weather, vacuum, system and boxes for your own. Each one is previewed with your own devices before you add it.
Settings as a plain list. Every option a card has, with names, switches and colour and icon pickers — even options that have no field in the usual forms. JSON is still there if you want it.
Safe by default. Nothing is written until you press Save. Ctrl+Z undoes any step, you're told if someone else changed the dashboard meanwhile, and any earlier save can be brought back. Pages you made by hand are left alone.
Each screen its own version. Pick computer, tablet or phone in the bottom bar and your changes apply only to it — or to all at once.
For the tinkerers. A tree of the whole dashboard, a full card editor with forms instead of YAML, and Ctrl+K to find anything.

Resizing a Home Assistant dashboard module to half width in the Mega Dashboard Studio — Half width with one drag — the modules next to it make room.

You don't start from a blank page

A wizard asks ten questions — language, screen, the devices you really use, rooms, pages, an optional picture of the home, the look — and builds the whole dashboard from your answers. It reads the last 14 days of the logbook and counts only what a person switched, so your real favourites end up on top. Then you fine-tune it in the Studio.

Try it before you install

The home page has a small working copy of the Studio. The five steps take about a minute and nothing leaves your browser.

Try the Studio now → Add to Home Assistant

Needs Home Assistant 2024.10+ and an administrator account. The app also installs the free, open-source cards the dashboard uses (button-card, layout-card, card-mod, kiosk-mode, mini-graph-card, advanced-camera-card); any you already have are left as they are.

More guides: 3D floor plan · Wall tablet and kiosk dashboard · Mega Dashboard vs other dashboards