NextFloor

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✨ Highlights

✏️ Plan editor	Floors, rooms, walls, doors, windows, stairs, outdoor areas and a roof, drawn in Home Assistant with the 3D view beside the plan.
💡 Live 3D	Tap to switch, swipe to dim, long press for colours. Blinds, windows and doors follow their entities; a room panel lists everything in the room.
📢 Announcements	"Dinner is ready!" in the room that should hear it: through each room's speaker (Voice PE, Echo, Sonos …) and on every open NextFloor screen, from the room panel or the action nextfloor.announce.
🚶 Walk and time travel	Walk through the house at eye level; replay the last hours – lights, doors, motion, energy.
🏡 Household and garden	Waste bins on pickup day, post in the mailbox, thirsty plants, pets that roam, robot vacuums on their lanes, sprinklers that water while their valve is open.
🔐 Doors and windows	Smart locks, lift-and-slide doors, sliding and top-hung windows, garage doors and gates that move, warnings for rain and for contacts that stop answering.
🛋️ Furniture & vehicles	40 basic models and 26 packs with over 620 more, popular IKEA sizes, Tesla models in their paint colours.
⚡ Energy & weather	Solar fields and power flow, rain, snow, fog, sun and moon, sunlight through the windows.
📺 Media	TV screens with cover and ambilight, speakers with their cover and controls.
🖥️ Wall tablet ready	Alerts for smoke, gas, water and open windows, your own sensors at the top, kiosk mode with night dimming, a light quality level for Fire tablets.
🎨 Fits your theme	Takes colours, font and corner radius from Home Assistant; three looks (Neon, Blueprint, Day) and a heatmap.
🧩 Dashboard card	custom:nextfloor-card with a visual editor.
🌍 Nine languages	German, English, French, Spanish, Italian, Dutch, Polish, Portuguese and Swedish, following the language of your Home Assistant user.
🪑 Furniture builder	Build your own furniture in the browser with the furniture builder, share it in the community store and install others' furniture with one tap (Extensions → Community furniture).
📦 Own 3D models	Upload a .glb of your own on the Extensions page; NextFloor prepares it for you. Import plans from Sweet Home 3D or let an AI write one in NextFloor's plan format.
🧩 Plugins	New device kinds from plugins and a plugin store on the Extensions page (cameras with their field of view, alarm panels).

💚 Free forever – a promise

NextFloor is free, and it stays free. Not "free to try", not "free with a paid Pro", not "free until the next version": free, for everyone, forever. Every feature, every furniture pack and every update belongs to everyone the day it comes out.

• Nothing to buy, ever. No Pro version, no paid modules, no packs sold one by one, no supporter pass that gets features first, no licence key, no shop. What others sell as add-ons – the weather outside, the energy flow, TV screens and speakers, the car, announcements, household and garden – is simply part of NextFloor.
• New furniture all the time, for free. 26 packs with over 620 models come with it, and new packs keep coming with the updates.
• Build your own furniture. The furniture builder runs in your browser: build it, see it exactly as NextFloor draws it, and share it in the community store, where everyone installs it with one tap.
• Extend it yourself. A plugin system with a reviewed plugin store: new device kinds, light animations, room cards – from anyone.
• Your data stays home. No account, no cloud, no usage data sent anywhere.
• The promise is in the licence. NextFloor is MIT licensed: anyone may read, change and share it. Nobody can ever take it away from you – not even me.

I believe in open source: software that anyone may read, change and share, and that every home can use without paying a cent. That conviction is the reason NextFloor exists. It began as a fork of NeonPlan 3D and went its own way, carried by this one promise and shaped together by the people who use it.

🖼️ Gallery

🚀 Installation

HACS (recommended)

1. Click the HACS button above, or in HACS go to ⋮ → Custom repositories and add https://github.com/therealMRBK/NextFloor as Integration.
2. Install NextFloor and restart Home Assistant.
3. Add the integration: or Settings → Devices & services → Add integration → NextFloor.
4. Open NextFloor in the sidebar, switch to Editor and draw your first floor.

Manual: copy custom_components/nextfloor into config/custom_components/ and restart. Requires Home Assistant 2025.1 or newer.

🧩 Dashboard card

Every option is in the card's visual editor. The same in YAML:

type: custom:nextfloor-card
floor: floor_ab12cd34   # optional: show a single floor (id from the editor)
room: room_ab12cd34     # optional: start in this room
height: 420             # optional: height in pixels
fill: false             # optional: fill the screen below the dashboard header instead of a height
walls: auto             # optional: auto | cut
explode: true           # optional: pull floors apart in the house view
floor_stack: dim        # optional: floors below an opened floor: dim | stacked | single
quality: auto           # optional: auto | low | high
theme: neon             # optional: neon | blueprint | day
accent: "#00e5ff"       # optional: accent colour for the neon look
markers: important      # optional: none | important | all
heatmap: none           # optional: none | temperature | humidity | co2
room_panel: true        # optional: tapping a room opens its details
room_names: true        # optional: room names in 3D
controls: true          # optional: switches in the card, or a list of walls, floors, temperature, humidity, co2
floor_thumbs: true      # optional: floor pictures to switch floors
fullscreen_button: false
stats: false            # optional: performance display
alerts: true            # optional: smoke, gas, CO, water, alarm and windows open in the rain pulse
alert_jump: false       # optional: jump to the room of a new warning
scenes: true            # optional: scene and script buttons of the selected room
energy: true            # optional: energy values at the top
flows: true             # optional: power flow lines always on (true) or off (false); leave out for a switch
holograms: true         # optional: live cards (energy balance, car, media) always on or off; leave out for a switch
weather: true           # optional: weather outside
weather_entity: weather.home   # optional: which weather entity (default: as set in the plan)
idle_return: 0          # optional: kiosk, seconds without a touch until the start view returns
night: "off"            # optional: kiosk, dim at night: off | sun | "22:00-06:00"
idle_orbit: false       # optional: kiosk, slow camera turn after the idle return

📦 Your own 3D models

Own a model of a vehicle (.glb)? Open Extensions in the NextFloor panel, choose the file, turn the front towards you, pick the level of detail and store it on your Home Assistant. NextFloor does the preparation in the browser and ships no models. See docs/models.md.

🔒 Privacy

The plan, its pictures and the packs live in Home Assistant's .storage. NextFloor does not talk to the internet on its own; only if you switch on the optional real map, your browser loads map tiles from the tile server (OpenStreetMap by default). Pictures and history come from your own Home Assistant.

🤖 Made with AI

NextFloor was built entirely with AI assistance. The idea, the decisions and the testing in a real house come from a person; the design, the code, the tests and the documentation were written together with Claude (Anthropic) in Claude Code. I would rather say so openly than let you guess.

What that means for you:

• It is tested, but young. There are automated tests (frontend logic, the furniture packs, the Home Assistant side) and releases are looked at in a real browser and installed on a real Home Assistant, but it has far fewer users than most integrations. Expect rough edges and report them.
• Back up before you trust it. The plan lives in Home Assistant's .storage; the editor has a backup and restore of the whole plan.
• Read the code if it matters to you. It is MIT licensed and small enough to read. Pull requests are welcome, also ones written with AI, as long as you say so and have run the checks (see CONTRIBUTING.md).

🛠️ Development

cd frontend
npm install
npm test            # pure logic
npm run typecheck
npm run build       # writes the bundles to custom_components/nextfloor/frontend (committed)
npm run screenshot  # renders preview/index.html (invented demo data) with a local Chrome or Chromium

• Preview without Home Assistant: open preview/index.html through any local web server.
• Deploy to a test instance: create deploy.local.json with {"target": "<config>/custom_components/nextfloor"} and run npm run deploy in frontend/.
• Python tests run in CI with pytest-homeassistant-custom-component.
• Furniture packs: the built-in packs are generated by tools/build_packs.py. The format of your own packs is described in docs/packs.md (German).

💬 Ideas, questions and bugs

Discussions for ideas and questions, Issues for bugs.

🙏 Credits

NextFloor started as a fork of NeonPlan 3D by Mastershort (Torsten). The idea of a live 3D home right inside Home Assistant, and the groundwork NextFloor grew from, are his. NextFloor carries that idea on in its own direction: entirely free and open source, for everyone. Thank you, Torsten!

Licence

MIT, see LICENSE. NextFloor ships three.js (MIT), Lit (BSD-3-Clause); their notices are in THIRD_PARTY_NOTICES.md.

"Home Assistant" is a trademark of its owners; "Tesla" and the Tesla model names are trademarks of Tesla, Inc., and "IKEA" and its product names are trademarks of Inter IKEA Systems B.V.; they are used here only to name the sizes and models. NextFloor is an independent community project and not affiliated with or endorsed by Nabu Casa, Tesla or IKEA.