Best Interior Design Apps Free in 2026: 9 Apps Compared

Planner 5D is the safest free starting point for most people. You can draw a floor plan to scale, add walls, doors, and windows, furnish it from a large catalogue, and switch between 2D and 3D views on web, iPhone, or Android. The free plan allows unlimited projects, which suits a whole home or a rental you plan room by room.

The free limits are real. Premium, at $4.99 per month or $59.99 per year, opens the full catalogue, removes watermarks, and adds AI design tools and higher-quality renders. If you only need to test layouts and furniture placement, the free tier is enough, but expect to pay for presentation-quality images.

Homestyler gives a generous free starting point for a web planner. The Basic plan includes the 3D planner, access to a large public model library, and unlimited 1K renders, which is enough to test layouts and share ideas with family or a contractor. Paid plans start from $3.90 per month for the Styler tier in recent listings, with Pro plans from about $6.80 per month for more AI credits and features.

The free tier is not unlimited in every sense. AI design credits are capped, some premium models need coins or a paid plan, and 2K or 4K renders sit behind paid options. For layout planning and basic visualization, Homestyler is one of the strongest free tools here, and its real furniture models help you judge scale better than generic shapes.

Sweet Home 3D is the honest free option in this list. It is open-source desktop software for Windows, Mac, and Linux, with no subscription, no credits, and no watermark on your output. You draw walls with exact dimensions, add doors and windows, place furniture, and view the result in 3D at the same time.

The trade is polish and convenience. The interface feels older than Planner 5D or Homestyler, the default furniture set is modest, and you will work on a computer rather than a phone. For a renovation plan, a rental layout, or a budget project where free truly means free, Sweet Home 3D is hard to beat.

Roomstyler lets you draw a room, furnish it with real products, and view it in 3D, all without a subscription for basic use. That shoppable angle is useful when you want to check whether a specific sofa or table fits, rather than placing a generic box of the right size. Community projects also offer layout ideas for awkward rooms.

Rendering is where the free tier shows its limits. Basic views are free, but high-quality images use credits, so you should plan your final renders rather than generating many versions. Roomstyler fits layout and shopping decisions best, and it pairs well with a measurement check before you order anything large.

IKEA Kreativ is a different kind of free tool. Instead of drawing a room from scratch, you scan your actual room with your phone, erase the current furniture in the view, and place IKEA items to see how they look in your space. That real-room preview prevents the common mistake of buying furniture that looks right online but wrong at home.

The limit is obvious: you can only preview IKEA products, so it cannot plan a room full of vintage, custom, or other-brand pieces. It also needs a supported device for the full scan experience. Use Kreativ when you already plan to buy from IKEA, and use Planner 5D or Homestyler for a full home plan.

Floorplanner focuses on the plan itself rather than on photorealistic decoration. You draw rooms, add dimensions, and produce a clean floor plan that a contractor, landlord, or partner can read without a tutorial. That clarity makes it a good choice for a move, a renovation quote, or a rental listing.

Furnishing and rendering are more basic than in Planner 5D or Homestyler, and some exports and features require paid upgrades. If your main job is an accurate plan, Floorplanner is free and focused, but if you want styled 3D images, start with Homestyler instead.

RoomSketcher produces some of the cleanest floor plans in this list, which is why real estate agents and designers use it for listings. The free tier lets you try the planner and view projects, but it is more of a preview than a long-term free tool. Exporting a floor plan on the free tier costs $38 per level, and Pro, at $144 per year, works on a credit system rather than unlimited exports.

For a one-off professional plan, that export cost may still be cheaper than hiring a designer. For ongoing free home planning, Planner 5D, Homestyler, or Sweet Home 3D will serve you better. Judge RoomSketcher on the quality of its finished plan, not on the breadth of its free tier.

Houzz is best as an idea and preview tool, not as a planner. You can browse millions of room photos, save ideas to boards, and use augmented reality on your phone to place selected products in your room. That combination helps you settle on a style before you draw a single wall.

Houzz will not draw an accurate floor plan or manage a full renovation layout, so it works best beside a planner rather than instead of one. Use it to collect styles and test a few products, then move to Planner 5D or Sweet Home 3D to check measurements and layout.

Magicplan solves the hardest part of planning: measuring. On supported iPhones and iPads, it uses LiDAR to scan a room and build a floor plan, which is far faster than measuring every wall with a tape. That speed suits contractors, estimators, and anyone planning a renovation across many rooms.

The free tier lets you try the core scanning, but exports and advanced features require payment, and Android users do not get the same LiDAR accuracy. Magicplan is a measurement tool first, so pair it with a planner such as Planner 5D or Floorplanner when you want to furnish and style the scanned plan.