OPENPLAN Open the app

2D CAD · In the browser

Floor plans, drawn like drawings.

OpenPlan is a fast 2D CAD for buildings. Millimetre-accurate walls, doors and windows, service layers, live areas and DXF export — on a sheet that reads like a printed drawing set.

Start drawing See the layers

Free · No account · No install

  1. 01 Click corner to corner — walls follow.
  2. 02 Close the loop — it becomes a room.
  3. 03 Odd-shaped wall? Trace its footprint — wall mass fills it.
LIVING 17.1 m² 5 700 3 600 5 700 OPENPLAN ⟲ ⟳ HISTORY ✥ ⧉ ⌦ EDIT ⊞ ⛶ VIEW IMPORT EXPORT PRESENT ↖ ▤ ◌ ⬢ ⌐ ▭ ▣ ◬ ⌇ A ↔ TOOL WALL WALL MASS SNAP END · GRID · 45° SCALE 1:50 ENTITIES 12
Wall tool → wall mass, exactly as in the app.

Disciplines

One plan, every trade.

Architecture, plumbing, electrical and airflow live on layers in drafting-convention colours. Solo a discipline, lock it, print it.

LAYERS

Click a row — this is the app's layer panel.

LIVING · 18.9 m² DINING · 9.7 m² BEDROOM · 12.6 m² BATH · 4.6 m² KITCHEN · 8.2 m² S S S

Take it with you

Yours to export and share.

Nothing lives behind a login. Every plan leaves the browser as a file you own.

Who it's for

Serious enough for work. Simple enough for a Sunday.

For professionals

  • AIA-style discipline layers with convention colours and lineweights
  • Millimetre-accurate geometry, typed lengths, angle locks
  • DXF in and out that survives the round trip
  • A drawing audit that flags unhealed joints and sloppy geometry
  • Print output that matches the screen — one palette, both media

For enthusiasts

  • No CAD manual — presets pick sane defaults for every element
  • Trace over a photo or a scan of your sketch
  • A furniture and fixture library that drops onto the sheet
  • Rooms and areas appear live as you draw
  • Everything undoes — pressing a tool is never destructive

Tooling

Small surface, real CAD.

Millimetre-true walls

Type a length, get real thickness. Corners mitre themselves.

Odd-shaped wall masses

Click any footprint's corners; it fills with solid wall.

Openings that cut

Doors and windows carve the wall and draw their own swing.

Snapping that commits

Endpoints, grid, angles. The halo shows where a drop lands.

Rooms find themselves

Closed walls become rooms. Areas update as walls move.

Drawing audit

One click flags unhealed joints and out-of-tolerance geometry.

The sheet is waiting.

No install, no registration, no login. The base functionality is free for everyone.

Open the app