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A 3D exhibition planner for artists, galleries and museums

See the showbefore you hang it.

Draw the room, hang works at real size, light them and walk through. See the finished show before install day.

Your data is never sent to a server. With Google Drive, it is stored in your own Drive.
1Draw the room

Pull the walls. Doors and windows are a right-click away.

2Hang the works

Pick a canvas size or drop a photo.

3Light it, then walk

Aim the spots and check it at eye level.

One plan,
three ways to see it.

The whole room. The dimensions. The walk-through. Keys 1, 2 and 3 switch between them.

3D view: orbiting the gallery
3DOrbit and see through walls
Plan view: select a work and its dimensions appear; slide it along the wall
PlanDimensions and names appear
Walk view: the gallery at eye level
WalkWalk it at eye level

Moves the way
you expect.

Recording: dragging a wall in plan view enlarges the room and the floor finish follows

Pull the walls.

Grab a wall in the plan and move it. The length updates as you drag. Floor finishes and ceilings move with the wall.

Three paintings spaced evenly and aligned in height
Space evenlyAlign heightsHang lineElevation

Arranging is one button.

Space evenly. Align the heights. Your standard hang line is remembered.

Elevation of the east wall

Drawings come out ready.

Select a wall and press Elevation. Export the PDF and hand it to the installers.

Recording: switching a work from the wall to a ceiling hang

Hanging from the ceiling is one tap.

Switch between wall, plinth and ceiling hang. Choose the number of wires and the drop.

Import screen: rooms and interior walls found automatically in an STL

Walls rise from STL and DXF.

Load a 3D model or drawing (STL or DXF) and the rooms and walls are found automatically. Pick the room to import and edit it like any room you drew yourself.

Place the light.

Narrow the beam. Darken the room. Project onto a wall. You see it immediately.

A darkened gallery with spotlights on the paintings
A spotlight beam widening and narrowing

Beam angleNarrow it from 6° to 80°

Narrow and wide spotlights

SpotlightsFollow the work they are aimed at

Recording: an image appears on the wall and the projector switches from floor to ceiling mount

ProjectorCeiling-mounted or on the floor

What you need
is already in.

A classical museum with gilt-framed paintings and a glass case
Frames and props8 frame styles, 70 props. Nothing to hunt for.
Standard canvas sizes
F10Landscape
530 × 455 mm
F0F3F6F10F20F50F100
Real size from a canvas numberJust pick an F, P, M or S size.
A sculpture placed on the floor of a large hall
Sculptures, as they areLoad an STL or OBJ and place it.
Recording: a photo on a white background is dropped in and the background is removed automatically
Drop a photo, the background goesPlain backgrounds are cut out automatically. The shape sits on the wall without a frame.
Small works hung together in a small gallery
Small works, all at onceScatter them freely, or line them up.

Rooms you can build.

Every image is straight from the app. Open one and walk around.

A white-cube gallery
White cubeOpen
A classic museum gallery
Classic galleryOpen
A small gallery
Small galleryOpen
A video room
Video roomOpen

How is it different
from other 3D software?

Gallerydraft3D modelling softwareArchitectural / interior CAD
OperationIntuitive, in the language of exhibitionsComplex: learn 3D modellingComplex: learn drafting
Works at real sizePick a canvas numberType the dimensionsType the dimensions
Spacing and heightsShown when you select a workDimension tool each timeDimension tool each time
Even spacing, aligned heightsOne buttonPlug-ins, handworkArrays and handwork
Elevations, work listsSelect a wall, one clickBuild it yourselfDrawing module (sometimes extra)
Lights, dark rooms, projectionSeen instantlyWait for a renderNeeds a renderer
Frames, plinths, furnitureIncludedHunt for assetsHunt for assets
Getting startedOpen in the browser, free to startInstallInstall, mostly paid

The other columns are rough guides based on how each kind of software is typically used.

Start free.

Pay monthly only when you plan for real.

Free
¥0
For a first exhibition
  • 3D, plan and walk views
  • Canvas sizes and artwork photos
  • Plinths, doors, windows, floors
  • Save up to 3 plans
Start for free
Recommended
Pro
¥980/mo
For serious shows
  • Unlimited saves
  • Work lists and checklists
  • 4K and PDF export
  • Lights, dark rooms, projectors
  • Automatic dimensions, elevations
Start Pro
Studio
¥2,980/mo
For several shows at once
  • Everything in Pro
  • Manage several exhibitions
  • Share by URL (view only)
  • PDF proposals
  • Auto-save to Google Drive
Start Studio
Compare the plans in detail
What you can doFreeProStudio
Design in 3D / plan / walk views
Canvas size presets, photos of works
Props, people, doors, windows, floors
Saved plansUp to 3UnlimitedUnlimited
Work management (list, checklist)
Export qualityScreen size4K, PDF4K, PDF
Spotlights, dark rooms, projectors
Automatic dimensions, elevations
Framing, STL / OBJ import
Manage several exhibitions together
Share with clients by URL (view only)
PDF proposal decks (plan, elevations, work list)
Auto-save and sync to Google Drive
SupportHelp pagesEmailPriority
Monthly (tax incl., planned)¥0¥980¥2,980

Prices are planned to include tax and may change at launch.

Compare the cost with other software
GallerydraftGeneral 3D modelling softwareArchitectural / interior 3D CADSpecialist exhibition design tools
What is freeDesign, props, works and exportSome are free (the capable ones take longer to learn)Mostly trials or limited editionsAlmost nothing (trial periods)
Typical monthly cost¥980–¥2,980¥0 to a few thousand yenA few thousand to ¥10,000+Thousands to tens of thousands of yen
Per year¥11,760–¥35,760¥0 to tens of thousandsTens of thousands to ¥100,000+Tens of thousands to several hundred thousand
Canvas sizes, frames, props included◎ Included× Find or build assets△ Furniture yes, gallery items few○ Usually included
Elevations and work lists◎ From Pro△ Assemble in another app○ Drawing module (often higher tier)
Beam angles and dark rooms◎ From Pro○ Rendering (slow)△ Needs a renderer (sometimes extra)
Time to learnMinutesWeeksDaysDays
InstallationNone (browser)RequiredRequiredUsually required

Other columns give typical price ranges and usage for each category (as of September 2026). They do not describe any specific product.

Saving and your data

  • Plans are saved on your computer, inside the browser. Nothing is sent to a server.
  • Clearing the browser's history or site data also deletes your saved plans. In a private window they are gone when you close it.
  • They do not carry over to another browser or computer.
  • To keep a copy, use "Save to file" in the app to export a .json, or sign in with Google to auto-save to the "Gallerydraft" folder in your Google Drive. The app reminds you every few days.
See every feature

Room

  • Build the room from a plan; drag walls for width and depth
  • Rooms and interior walls read automatically from STL / DXF (pick the rooms to import)
  • L-shapes and recesses (push walls out / in), add corners
  • Free-standing walls (partitions); drag the ends to rotate, snap like a magnet
  • Per-wall colour, transparency and name
  • Doors, sliding doors, windows, bays, round and high windows, shoji, screens, curtains
  • Wall cut-outs (openings)
  • 18 floor materials (wood, polished concrete, terrazzo, your own photo), steps, ceiling panels, sloped ceilings
  • Compass, ceiling height, wall thickness
  • Build the room from STL / DXF, trace over a plan image
  • Save your own plan as a template

Works

  • F / P / M / S canvas size tables
  • Embedded photos, automatic background cut-out, cropping, reverse side
  • Hang on a wall / place on a plinth / hang from the ceiling (wires)
  • Framing (8 frame styles, width, mat)
  • Acrylic blocks, garments (tops, bottoms, sets)
  • 3D works (box, cone, cylinder)
  • On the wall / on a plinth / hung from the ceiling
  • Hang line, even spacing, height alignment
  • Spacing between works and floor / ceiling clearance shown with arrows
  • Tilt a work, swap portrait / landscape
  • Turn props into works and works into props

Props, people, lights

  • 70 props (plinths, cases, seating, reception, AV, computers, photography, signage, barriers, walls, stairs, drapes, fittings)
  • Custom boxes, cylinders, glass cases, captions and cloth by dimension
  • Grouping
  • STL / OBJ objects (up to 20,000 faces)
  • People (4 block figures, 6 photo cut-outs, 6 illustrated)
  • Spotlights (beam angle, brightness, target, 16 at once)
  • Lighting tracks
  • Projectors (ceiling / floor, throw distance, projected image)
  • Daylight (a band of light through a window)
  • Dark rooms (whole room / an area)
  • Threads (installations joining points, lines and planes)

View, export, save

  • 3D / plan / walk views
  • See-through front walls, wall transparency
  • Toggle names, wall dimensions, spacing, heights, grid and compass
  • Elevations (with dimension lines and titles)
  • Work list (exhibition checklist)
  • PDF / PNG / JPEG export, placement table as text
  • Save and load JSON, open a plan from a URL
  • Auto-save on this device, multiple plans
  • Sign in with Google to auto-save to Drive
  • Switch units (mm / cm / m / inch)
  • Undo / redo, editable shortcuts
  • Searchable help

See it before you hang it.

Open it now and start placing.

Open the app