HelCAD

CAD
in the browser

Draw, dimension, edit and export. No installation.

Open editor Buy 30 days — 50 €

The demo includes every drawing tool. Saving and export require access.

HelCAD workspace showing a dimensioned mechanical plate drawing
Exact input, object snaps and dimensions at the cursor.
2D drawing Working planes DWG / DXF PDF plotting STL / 3MF / OBJ

Tools

Buttons and typed commands use the same drawing state.

Draw
Line, polyline, circle, arc, rectangle, polygon, point, text and hatch.
Modify
Move, copy, rotate, scale, mirror, stretch, trim, extend, offset, fillet, chamfer and array.
Measure
Linear, aligned, radius and diameter dimensions. Editable dimension text.
Precision
Typed coordinates, cursor-side values, ortho, alignment tracking and eight object-snap modes.
Organise
Named layers, visibility, locking, colours, line types and ISO lineweights.
HelCAD isometric wireframe view of an extruded mechanical profile

3D

  • Ground, front and right working planes
  • Extruded closed profiles and circles
  • Orbiting isometric wireframe view
  • Binary STL with manifold validation
  • 3MF with millimetre units
  • Wavefront OBJ mesh export

Files

Save As chooses the name and format. Save repeats the choice.

HelCADEditable native drawing
DXFOpen and save
DWGOpen and save through server conversion
PDFVector A4 / A3 plotting at an exact scale
STL · 3MF · OBJValidated mesh output from swept solids

Current limits

Solids are extruded profiles; union and cutting are not included. DWG exchange has not yet been qualified against an independent AutoCAD-produced file set. Paper-space layouts and multiline text are not included.

Runs on desktop browsers. The phone layout is for viewing and trying the editor.

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