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Free · No sign-up to sketch · Nothing to install

Sketch a floor plan.
See it in 3D.
Redesign it by chat.

Inner Piece turns a floor plan, drawn or uploaded, into an editable 3D model of your home. Then you describe the changes you want and watch them happen.

Start sketching

PNG, JPG or WEBP · or drop a floor plan anywhere on this page

The flat above is a template. Open it in 3D

Start from a home

Furnished, lit and landscaped. Open a home in 3D, then make it yours.

Sketch. It's already 3D.

Every wall you draw is 3D the moment you draw it. Then add a floor.

  • One click, nothing to wait for

    Switch between the plan and the model as often as you like. Doors, windows, floors and furniture come along.

  • Floors and stairs

    Add a floor and it starts with the outer walls of the one below. Draw its rooms, drop in a staircase, and the stair opens the floor above with a balustrade round the well.

  • Look inside

    Pick a floor and the ones above lift off, in the sketch and in 3D. Try it here.

The family house in 3D, both floors

Both floors

See it as you'll live in it

Morning light, evening lamps, and every room at eye height.

Daylight, by the hour

Set the date, drag the compass to where north is, and the sun crosses your rooms with shadows falling as they would where the home stands. Play the whole day in a few seconds.

The courtyard villa at half past eight in the morning, short shadows across the pool terrace
8:30 am
The same villa at half past six in the evening, long shadows from the west
6:30 pm

After dark, the lamps come on

Every lamp, pendant and spotlight you place lights its own corner. See how each room glows in the evening before you buy a single light.

The oak loft at night, lamps lit in the bedroom and over the kitchen island
9:30 pm · lamps on

Stand in it. Walk through it.

One press stands you in each room at eye height, in the corner with the best view. Or tap a spot, choose where to face, and walk with the arrow keys or the on-screen pad. Walls stop you; doors let you through.

Eye level in the oak loft's living room, under the wood beams
Eye level
Walking through the oak loft towards the balcony
Walking

Indoors and out

Plan the garden with the house: lawns, decks, pools and hot tubs, pergolas, trees, an outdoor kitchen and a place for the car.

The pool villa's garden in 3D: pool, hot tub, outdoor kitchen, trees and a trampoline

  • Photoreal renders

    Turn any view into a lifelike picture of the finished room, in the look and light you describe.

  • Walls with character

    Wallpaper, paint room by room, cornices, skirting, wood panelling, brick, concrete, marble and limewash.

  • Ceilings too

    Flat, wood beams, coffered, a lit tray or wood slats, with pendants, chandeliers and spotlights hanging from them.

  • A style for the home

    Name the look, from Japandi to Art Deco, and every chat edit follows it: palette, pieces and how full the rooms are.

Say what you want

Every edit the app can make, the chat can make too. And a few it does better.

Chat

Furnish the kitchen. Keep the sink under the window.

  • get_room
  • layout_options
  • dress_room

Done: a run along the window wall with the sink under it, the fridge at the open end, an island facing the sink with three stools, and pendants over it. Nothing blocks the door.

Add a first floor with two bedrooms and a bathroom, stairs in the hall.

  • add_level
  • add_room
  • add_furniture

Added a first floor on the outer walls, with a landing round the stairwell, two bedrooms with beds and wardrobes, and a bathroom over the kitchen.

Is there room for a 2.4 m sofa under the living room window?

  • get_room

The window wall is 3.0 m with nothing along it, so yes: a 2.4 m sofa leaves 30 cm each side. Shall I place it?

Ask for a change…
A kitchen the chat furnished: a run under the window, a blue island with stools, pendants over it
“Furnish the kitchen”
A living room the chat furnished: two sofas round a coffee table, bookshelves either side of the fireplace
“Furnish the living room”

  • Furnish a whole room in one go

    Ask for a bedroom, living room, dining room, study, kitchen or bathroom and it lays the room out: the sink under the window, an island where there is room for one, the bath in the far corner, clearances kept.

  • Everything to scale

    Sofas, beds, kitchens, baths, desks and lamps in real sizes, in the widths they actually come in, and colours from named palettes, so what fits on screen fits in the room.

  • It checks the layout

    Every edit is checked for clashes, blocked doors and windows, the space in front of wardrobes and fixtures, and a walkable path from each room's door.

  • Ask it anything

    Whether a 2.4 m sofa fits under the window, which wall gets the afternoon sun, or what it would take to open up the kitchen.

  • Make the walls sage green
  • Add a window on the north wall
  • Swap the bath for a walk-in shower
  • Furnish the bedroom, Japandi
  • Does a 2.4 m sofa fit under the window?
  • Add a first floor with two bedrooms and a stair
  • Lay a herringbone oak floor in the living room
  • Put a pergola over the patio

Every surface

Brick, concrete, marble, wood, wallpaper and paint, wall by wall and face by face.

Paint a room on its own side of the walls, paper one wall, run a cornice with a lit cove along the ceiling, and choose the floor: oak boards, herringbone, tiles, stone, carpet or polished concrete.

The brick warehouse at eye height: exposed brick, a concrete wall with a lit cove, black pendants over the island

Everything in the box

Draw

  • Rooms, walls, doors and windows with real dimensions
  • Upload a blueprint and let the AI trace it
  • Metres or feet
  • Undo and redo, across sketch, 3D and chat
  • Several floors, with stairs that open the floor above

See

  • Instant 3D, orbit and zoom
  • Sun and shadows by date, time and place
  • Night mode with every lamp lit
  • Eye level in each room, and a walk-through
  • Lift floors off to look inside
  • Photoreal renders

Design

  • Furniture and fixtures to scale, in the sizes they come in
  • Furnish a room in one go: kitchens and bathrooms laid out properly
  • Wallpaper, paint, wall materials, cornices and skirting
  • Ceilings: beams, coffered, tray, slats
  • Gardens: lawns, decks, pools, pergolas, trees, a place for the car
  • A design style the chat follows

Share

  • Every project at its own link, no account to sketch
  • Furnished homes to start from, inside and out
  • Live across tabs while the assistant works
  • An MCP server for every project, for your own AI tools

How it works

  1. Sketch or upload

    Draw rooms and walls on a 2D canvas, or drop in a photo or scan of a floor plan and let the AI trace it. Edit the trace until it matches.

  2. See it in 3D

    One click turns the sketch into a 3D model you can orbit and zoom. Walls carry their doors and windows, rooms carry their floors and furniture.

  3. Redesign by chat

    Say what you want: “make the walls grey”, “add a window on the north wall”, “furnish the bedroom”. Each edit shows up in both the sketch and the 3D view.

Who it's for

What is Inner Piece

Inner Piece is a free, browser-based home design tool that converts a 2D floor plan into a 3D model and lets you edit it in plain language. Draw the plan yourself or upload a blueprint image, and the AI traces walls, rooms, doors and windows. No account needed to sketch, no download.

Questions

What is Inner Piece?
Inner Piece is a free web app that turns a floor plan into an editable 3D model of your home. You can draw the plan from scratch in the browser or upload a photo or scan of an existing blueprint, then redesign the space by chatting: move walls, add doors and windows, paint rooms, furnish them and place furniture.
What file types can I upload?
PNG, JPG and WEBP images of a floor plan. Straight-on scans with clear lines work best, one floor per image. The AI traces the walls, rooms, doors and windows into a sketch you can correct before viewing in 3D.
Do I need an account or to install anything?
Not to sketch: drawing a plan, opening a template and viewing it in 3D need no sign-up. Tracing an uploaded floor plan, redesigning by chat and photoreal renders ask you to sign in with Google. There is nothing to install and no credit card. Each project has its own link, and projects made in your browser are listed under My projects.
How long does it take to turn a blueprint into 3D?
Tracing an uploaded floor plan usually takes a couple of minutes. Drawing a sketch and switching to 3D is instant, and each chat edit takes about twenty seconds.
What can I change by chat?
Anything the editor can do: draw or resize rooms, move and paint walls, add doors and windows, rename rooms, change floors and ceilings, add a floor and a staircase, and place, move or recolour furniture and fixtures. Ask it to furnish a whole room and it lays the room out, checking the result as it goes. You can also ask questions about the layout, for example whether a sofa fits under the window.
Can I start from a ready-made floor plan?
Yes. Pick one of the furnished homes on the home page, from a lake house and a desert house round a pool to a Tuscan estate, a country farmhouse over two floors and a city townhouse with a roof terrace. Each is furnished room by room, lit, and set in its garden. Below them are more, from a studio and a two-bed flat to a pool villa and a mansion. A template opens in 3D, and becomes your own project, with its own link, as soon as you change something.
Can a home have more than one floor?
Yes. Add a floor and it starts with the outer walls of the one below. Draw its rooms, add a staircase, and the stair opens the floor above. In 3D you can lift the upper floors off to look inside any floor.
Does it work in feet and inches?
Yes. Every measurement is shown in metres or feet, whichever you pick, and the grid follows.
Who is Inner Piece for?
Homeowners planning a renovation, renters working out a furniture layout, interior designers mocking up ideas for clients, and anyone who wants to see a floor plan as a 3D space before committing to it.
Can I use Inner Piece from my own tools?
Yes. Every project exposes its design tools over the Model Context Protocol (MCP), so any MCP client, such as an AI coding assistant, can edit the same model that the web app shows.

Your floor plan, in 3D, in a couple of minutes.

Start sketching

Plans

A chat message uses 1, tracing a plan 5, a render 3. Credits renew each month and don't carry over.

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