The best free AI interior design tool for each job
There is no single best free tool, because the tools answer different questions. Start from what you are trying to decide.
| If you want to... | Start with | Why |
|---|---|---|
| Brainstorm a style and learn the vocabulary | ChatGPT or Gemini | You can upload a photo, edit it, and ask follow-up questions in plain language |
| See a full redesign of your own room | REimagineHome or Spacely | A starter allowance of full-quality designs or credits, with no card required |
| Plan a layout to measurement | Planner 5D (free plan) | A real 2D and 3D planner with unlimited projects on the free plan |
| Furnish a room with IKEA products | IKEA Kreativ | Free, scans your room, and places real IKEA products |
| Test one specific product from any store | DecorViz | Places the exact product you upload into a photo of your room |
| Try a tool for client or commercial work | Spacely | Its free trial credits list a commercial licence and watermark-free images |
Free AI interior design tools compared
| Tool | What the free version includes | The catch | Best for |
|---|---|---|---|
| ChatGPT | Image generation and editing on free accounts, within a small allowance | OpenAI changes the limit with demand; edits can alter the room | Ideas and design language |
| Google Gemini | Image generation and editing with Nano Banana 2 for users without a paid plan | "Standard limits" rather than a fixed published number | Iterative edits to one photo |
| IKEA Kreativ | The full room design experience, free | IKEA products only | Furnishing with IKEA |
| Planner 5D | $0 plan with unlimited projects and about half the catalogue | Renders, plan recognition, and larger AI allowances are paid | Measured layouts |
| REimagineHome | 5 free designs at signup, no card | Five designs go quickly; paid plans run from $14 to $99 a month | Trying a redesign and staging tool at full quality |
| Spacely AI | 40 one-time trial credits, no card | Credit use varies by feature; paid plans from $25 a month | Designers evaluating a render tool |
| RoomGPT | A very limited free allowance, often one redesign | Generated furniture is not shoppable | Quick mood-board inspiration |
| Collov AI | A free trial with watermarked results | Clean, full-resolution exports need a paid plan | Agents sampling virtual staging |
| MeltFlex AI | A free first design | Ongoing use sits behind a plan | Redesigns linked to retailer products |
| DecorViz | 2 lifetime previews, no card | Watermarked, 1K output, personal use only on the free plan | Checking a specific product in your room |
| Interior AI | No free plan | Paid from about $29 a month billed yearly | Professionals who will use it often |
How we checked
This is a source-verified comparison of free plans, not a new hands-on test of every tool. In September 2026 we checked each tool's own pricing page, help documentation, or official announcement, and cross-checked against our existing reviews where we have them. We link to the primary source for each free allowance below. Where a company does not publish a fixed number, as with ChatGPT and Gemini, we say so rather than repeat third-party estimates. DecorViz is our Editors' Choice furniture visualizer; it is listed here on the same terms as every other tool, with its free-plan limits stated plainly.
General-purpose AI: ChatGPT and Gemini
Both can edit room photos, but the workflow matters as much as the feature list. Our ChatGPT vs Gemini interior design comparison explains which one fits an open-ended design conversation and which suits a focused visual edit.
ChatGPT
What is free: free ChatGPT accounts can generate and edit images, including a photo of your room, within an allowance that OpenAI adjusts with demand and does not publish as a fixed number. The conversation itself is the more useful free feature: upload a photo and ask what colour would work around a green sofa, whether the room reads as mid-century or Scandinavian, or how large a rug the seating group needs.
Where it falls short: image edits can quietly move windows, change proportions, or invent furniture that does not exist. Use it to find a direction and the words to describe it, not to confirm a purchase.
Google Gemini
What is free: Google's Gemini Apps limits page lists image generation and editing with its Nano Banana 2 model as available to users without a paid plan, under what it calls standard limits. It handles instructions such as "paint the walls sage and keep everything else the same" reasonably well, which makes it good for changing one variable at a time.
Where it falls short: the same generative caveats apply as with ChatGPT, and limits can change without notice. Check every edit for walls, windows, and doors that have shifted.
Free room planners: IKEA Kreativ and Planner 5D
IKEA Kreativ
What is free: everything. In IKEA's own description, you photograph your room from a series of angles and the app assembles an interactive replica "with accurate dimensions and perspective". You can erase existing furniture and place IKEA products in the space.
Where it falls short: it is a showroom for one retailer. If your shortlist includes a sofa from anywhere else, you will need a different tool for that piece. Availability also varies by country.
Planner 5D
What is free: a $0 plan with unlimited projects across web and mobile and access to roughly half of the furniture catalogue, as covered in our Planner 5D review. It is a genuine measured planner: you build the room to its real dimensions and place furniture to scale.
Where it falls short: you do the modelling yourself, catalogue items stand in for the products you might actually buy, and higher-quality renders, floor-plan recognition, and bigger AI allowances need a paid plan.
AI redesign tools with a free allowance
REimagineHome
What is free: its pricing page offers 5 free designs to new users, with no card required, and says they use the same AI and quality as paid plans. That makes the free designs a fair test of what you would be paying for.
Where it falls short: five designs disappear fast if you re-roll, and paid plans run from $14 to $99 a month by credit volume. Plan your five before you start (see the tips below).
Spacely AI
What is free: Spacely's pricing page lists 40 one-time trial credits with no card, and describes the free plan as including high-resolution downloads, a commercial licence, and watermark-free images. That combination is unusual among free tiers.
Where it falls short: credits are not renders. Spacely says credit use varies by render options, and its 2026 pricing post puts typical use at 6 to 20 credits per session, so 40 credits is roughly two to six sessions. Paid plans start at $25 a month.
RoomGPT
What is free: a very limited free allowance, often a single redesign credit. Our RoomGPT review found it useful for fast style exploration.
Where it falls short: the furniture it draws is generated, so there is nothing to buy. Treat the result as a mood board, not a shopping list.
Collov AI
What is free: a free trial for sampling quality, with watermarked results. Clean, full-resolution exports need a paid credit plan, which starts at about $19 a month according to our Collov AI review.
Where it falls short: it is built for listing staging. A homeowner choosing furniture will get more from a tool built around their own purchase.
Product visualizers: MeltFlex and DecorViz
These tools start from real products rather than generated ones, which is what matters once you have a shortlist.
MeltFlex AI
What is free: a free first design. MeltFlex builds redesigns around furniture from retailers, so the pieces you see are meant to be purchasable. Our MeltFlex review covers what to verify before buying from a result.
Where it falls short: one design is enough to judge the approach, not to furnish a room. Ongoing use needs a plan.
DecorViz
What is free: according to the DecorViz pricing page, the free plan includes 2 lifetime previews with no credit card. You upload a photo of your room and an image of a product from any retailer, and it shows that exact product in your space. Paid plans start at $12 a month.
Where it falls short: two previews is a small allowance, and free previews are watermarked, generated at 1K, and for personal use only. It is a visual check, not a layout or measuring tool. Our DecorViz review covers where it fits in a buying decision.
The tool with no free plan: Interior AI
Interior AI is paid-only: you cannot generate designs from your own photos without subscribing. Pro costs about $49 a month, or about $29 a month billed yearly, as detailed in our Interior AI review. It is capable, but it is priced for people who will use it often, such as agents and designers. If you only need a weekend of ideas, start with one of the free options above.
How to make free credits count
- Decide the question first. "What style suits this room?", "Will this layout work?", and "Does this sofa look right here?" need different tools. Pick the tool after the question.
- Take a better photo. Shoot in daylight from a corner or doorway at about chest height, hold the phone level, use landscape orientation, and include the floor and ceiling lines. Clear the clutter first; tools spend effort on everything they see.
- Brainstorm for free, spend credits last. Use ChatGPT or Gemini to settle on a style and a colour direction, then spend limited redesign credits on the options that survived. The AI interior design styles library has 15 copyable starting prompts.
- Write prompts in design language, and say what must not change. "Keep the windows, radiator, and floor; replace only the sofa and rug" works better than "make it cosy". Our guide to redesigning a room with AI without changing the layout has structure-preserving prompts you can adapt.
- Run the same photo through two tools. Differences between outputs show you what is the tool's style and what is your room. We did exactly this in our same-photo test of four AI room tools.
- Save every result with a note. Record the prompt and settings beside each image. A watermark does not matter for a personal decision.
What free AI design tools cannot tell you
Free or paid, an AI image cannot confirm that a piece fits, that a generated sofa exists, that a colour will look the same under your lighting, or that a wall can be removed. Use images for direction and appearance, and a tape measure for fit. Our honest look at what AI room redesign tools can and can't do goes further, and the scale problem explains why furniture that looks right in a picture can overwhelm a real room.
Licences and privacy on free plans
- Check the usage licence. Some free plans are personal use only (DecorViz states this for its free plan); others, such as Spacely, list a commercial licence on free credits. If you are a stager, agent, or designer, confirm before you use an image with a client.
- Read how uploads are used. A room photo shows the inside of your home. Check each tool's privacy policy for how images are stored and whether they may be used to improve the service.
- Remove personal details from the frame before uploading: family photos, documents, screens, and anything visible through a window that identifies the address.