A room planner app lets you draw a room to scale, add doors, windows and furniture, then view the layout in 2D or 3D before you lift anything. The useful ones accept real measurements, include a large furniture library and let you share the plan with family or builders. Ten options follow, in no particular order.
Every move or makeover comes with the same question: will it fit? The sofa that looked perfect in the shop can block a door, and the bed you love can leave no room to open a wardrobe.
A room planner app answers that before you carry a single box. You enter the room's size, drop in furniture to scale and walk around it in 3D. The ten below are listed alphabetically and in no particular order, and each description comes from the app's own website or store listing, read this week. If you're relocating at the same time, my tips for moving to a new city cover the rest of the move.
Room planner apps side by side
I checked the free plan column on each app's own website or store listing, as of Oct 2026. Yes means the page names the app, an account or a plan or version of it as free. Trial only means a time-limited trial. Not stated means the pages I read named neither, even where there's a download button or a free first try, so check before you commit.
| Tool | Type | Good for | Free plan |
|---|---|---|---|
| 4Plan | Home and interior planner app | Simple layouts on iPhone, iPad and Mac | Not stated |
| Coohom | 3D home design software | AI-powered layouts in a 2D planner | Yes |
| Floor Plan Creator | Floor plan app for web and Android | Precise room sizes on site | Yes |
| Floorplanner | Online floor planner and 3D room planner | A free account for home projects | Yes |
| Home Design 3D | 2D and 3D house design app | Quick rounds of design ideas | Not stated |
| HomeByMe | 3D home design software | Furnishing with real brand products | Yes |
| Homestyler | 3D home design platform | Huge model library and cloud renders | Yes |
| Live Home 3D | Home design app for every platform | Planning the house and the garden | Not stated |
| Rooms - Easy Layouts | Room layout app for iPhone and iPad | Testing furniture layouts before a move | Not stated |
| Sweet Home 3D | Free interior design software | A desktop planner with built-in models | Yes |
Ten room planner apps to try
4Plan
Best for: Beginners with no design software experience who want to draw rooms and floors, then drag in furniture on Apple devices.
Coohom
Best for: Sketching a layout in a 2D floor planner, exploring AI-powered layouts, then furnishing it in real-time 3D.
Floor Plan Creator
Best for: Measuring on location with your phone, setting room sizes and distances numerically, then finishing the plan on a computer.
Floorplanner
Best for: Homeowners who want planning to be easy and accessible, with a free account for drawing rooms and seeing them in 3D.
Home Design 3D
Best for: Drawing in 2D and viewing the finished result in 3D, for interior ideas or preparing for building work.
HomeByMe
Best for: Planning an apartment or house in 2D, decorating in 3D with real brand furniture, then rendering 4K images of the result.
Homestyler
Best for: Designing rooms with a very large library of 3D models and cloud rendering, plus an AI design agent you can chat to.
Live Home 3D
Best for: Laying out and furnishing a room or a whole house, then planning the exterior and terrain, on Mac, Windows, iOS or Android.
Rooms - Easy Layouts
Best for: Dragging and arranging furniture to perfect a layout, with measurements down to the inch, before lifting anything heavy.
Sweet Home 3D
Best for: Drawing a 2D floor plan, decorating each room and creating 3D photo and video renderings in one downloadable program.
Which app fits how you plan
- A simple layout with no design experience: 4Plan.
- Measuring on site with a phone: Floor Plan Creator.
- Furnishing with real brand products: HomeByMe.
- A downloadable desktop planner: Sweet Home 3D.
- Testing a furniture layout before moving day: Rooms - Easy Layouts.
Leave room to move around
The U.S. Access Board guide to the ADA Standards sets a minimum clear floor space of 30 inches by 48 inches at accessible elements, whether a person approaches from the front or the side. It's written for accessible elements in buildings, but it's a helpful benchmark at home too.
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If anyone in your household uses a wheelchair or a walker, or you're planning a room for later life, leave that clear space in front of the bed, the sink and appliances, and check it in the app before you place furniture.
How to measure a room for a planner app
- Measure each wall at floor level and write the numbers on a sketch.
- Mark doors, windows, radiators and sockets with their positions.
- Note which way each door swings, because it needs clear space.
- Measure the ceiling height if you're planning tall storage.
- Measure each piece of furniture you're keeping, including depth.
2D plans versus 3D views
A 2D plan is the working drawing. It shows walkways, door swings and exact gaps, and it's what you'd share with a builder or a removals firm.
A 3D view is for feel. It shows how tall furniture looks, how light falls and whether a room feels crowded. Most apps here do both, so draw in 2D first and check the result in 3D.
Layout mistakes room planners catch
- Blocked doors and drawers. Check every swing and pull.
- Walkways that are too narrow. Leave a clear path between pieces.
- Furniture against radiators. It wastes heat and dries out wood.
- Forgotten sockets. Plan lamps and desks near power.
Signs your room plan is ready
- Every door and drawer opens fully.
- You can walk through without turning sideways.
- Lamps and desks sit near sockets.
- New furniture fits with space to spare.
Do you make room planning or home design apps? Tool makers can ask to be considered for a featured place on this list.
My plain advice on room planner apps
Measure once, carefully, and the app does the rest. Draw the room to scale in 2D, add the furniture you're keeping, then test new pieces before you order them. A ten-minute plan can save a return trip, a blocked doorway and a lot of heavy lifting.
Share the plan with everyone who'll use the room, because a layout that works for one person can annoy another. For a workspace at home, my guide to office furniture that helps you work is a useful companion.
Frequently asked questions
What is a room planner app?
An app that lets you draw a room to scale, add furniture and view the layout in 2D or 3D before you move anything.
Is there a free room planner app?
Several apps on this list say on their own site that the app or an account is free, as the table shows.
Can I plan a room on my phone?
Yes, most of these apps run on a phone or tablet, and some let you finish the plan on a computer.
Do room planner apps use real measurements?
Most let you enter exact wall lengths and furniture sizes, which is what makes the plan useful.
Can I see my room in 3D?
Most apps here show a 3D view after you draw the floor plan, and some create realistic images.
How much space should I leave around furniture?
Enough to walk and open doors easily, and the ADA Standards' clear floor space is a helpful benchmark for accessible rooms.
