◇
Orthographic views
Create front, top, side, back, bottom, and isometric views from the same model.
Browser-native drawing engine
Shop drawings at model speed.
Turn detailed 3D models into clean orthographic CAD drawings—complete with dimensions, sections, line weights, and professional title blocks.
✓No installation✓Local processing✓3 free downloads monthly
✓Drawing ready3D model → dimensioned sheet
⌁Private by designGeometry stays in your browser
Works with the formats you use
GLB / glTFFBXOBJSTLSTEPIGES3DM3MFPLY
Built for real production
Less drafting. More engineering.
Ortho2D handles the repetitive drawing work while keeping the decisions in your hands.
⌖
Automatic dimensions
Generate useful overall, chain, circular, and centre-line annotations in your chosen unit.
◩
Section intelligence
Cut interiors, position a 3D clipping plane, and produce clean hatched sections.
⌁
Hidden-line control
Adjust edge recognition and visibility sampling for readable technical output.
▱
Professional sheets
Use ISO and ANSI sheets, automatic scales, standards-based line weights, and title blocks.
↗
CAD-ready exports
Export PDF, DXF R2000, DXF R12, or SVG for downstream documentation and fabrication.
Inside Ortho2D
A drawing engine—not a screenshot generator.
The geometry pipeline classifies real edges, removes hidden detail, recognises curves, lays out standards-based sheets, and writes editable CAD entities.
15direct input formats
10display units
4export options
352automated checks
Geometry-aware line work
Ortho2D welds imported meshes, builds edge adjacency and a triangle acceleration structure, then tests candidate edges for visibility instead of flattening the model into an image.
True orthographic projectionAdaptive hidden-line ray samplingDuplicate and coincident-line cleanupCircle and arc reconstruction from tessellation
Units you can trust
Every model is normalised to millimetres internally. Authoritative units are respected, ignored metadata is flagged, and unitless formats are estimated from model scale for confirmation.
µm, mm, cm, dm, m and kmThou, inch, foot and yardArchitectural feet-and-inches notationTyped rotation and extra scale correction
Sectioning for parts and interiors
Automatic wall detection distinguishes thin enclosure walls from solid parts, while the interactive 3D cutting plane gives precise control over angled cuts and plan heights.
Automatic, always, off, or manual interior cutsMove, rotate, flip, and type the cutting planeSection A-A traces, arrows, and 45° hatchingCut geometry applied consistently to every view
Standards-based sheet output
Views are aligned around one projection anchor and fitted onto the smallest practical sheet using standard or fine engineering scale ladders.
ISO A4–A0, ANSI A–E, and ARCH seriesFirst-angle and third-angle projectionISO 128 line-weight groups and ISO 3098 textISO 7200 mechanical and architectural title blocks
Format intelligence
Open the useful formats. Explain the closed ones.
Modern meshes, manufacturing exchange files, and legacy formats each use the appropriate browser-side reader. Native authoring scenes receive a clear conversion path instead of a mysterious failure.
| Category | Formats | What Ortho2D does |
|---|---|---|
| Modern exchange | GLBglTFFBXOBJ | Loads meshes, transforms, and scene geometry; GLB/glTF is the preferred general workflow. |
| Manufacturing CAD | STEPIGESBREP3DM | Uses on-demand OpenCascade or Rhino WebAssembly readers and reconstructs drawing geometry. |
| Mesh and print | STLPLY3MFAMF | Supports common ASCII, binary, and packaged mesh data with welding and unit confirmation. |
| Legacy / specialist | DAE3DSVRMLUSDZ | Provides direct readers for older visualization and interchange pipelines. |
| Convert first | .MAX.BLEND | Export 3ds Max as FBX or GLB; export Blender as GLB/glTF for reliable evaluated geometry. |
A focused workspace
Explore the engine ↗
See the model and the drawing together.
Orbit the geometry, place sections, and immediately understand how each decision affects the finished sheet.
✓
Visual section placementMove and rotate the section plane directly in the 3D viewport.
✓
Controlled regenerationApply changes when ready or enable automatic updates.
✓
Undo-friendly workflowExplore drawing settings without losing the previous result.
Three steps
Model in. Drawing out.
A short path from geometry to documentation—without a heavyweight CAD installation.
Import your model
Drop a supported mesh or CAD exchange file into the browser and confirm its units and orientation.
Compose the sheet
Choose views, sections, dimensions, standards, line weights, title details, and drawing scale.
Export and deliver
Download a polished PDF, editable DXF, or scalable SVG ready for your next workflow.
Simple monthly subscriptions
Pay for the download volume you need.
Every plan keeps model processing inside the browser. Paid plans unlock the complete export workflow and differ mainly by monthly file allowance.
Free
For testing the engine and handling occasional drawing work.
$0/ month
3 file downloads / month
- Complete browser workspace
- All supported model imports
- Orthographic and isometric views
- Local geometry processing
Professional
For independent engineers and fabricators producing drawings regularly.
$19/ month
200 file downloads / month
- Everything in Free
- Automatic dimensions and centre lines
- Interior and interactive 3D sections
- PDF, DXF R2000, DXF R12, and SVG
- Mechanical and architectural sheets
Studio
For busy design studios with a larger monthly delivery workload.
$29/ month
600 file downloads / month
- Everything in Professional
- Six times the Professional allowance
- Full standards and scale controls
- Custom title-block information
- Priority email support
Pro
For high-volume production teams delivering drawings at scale.
$99/ month
4,000 file downloads / month
- Everything in Studio
- Highest monthly download allowance
- Full PDF, DXF, and SVG workflow
- Large-model quality controls
- Priority support
| Plan comparison | Free | Professional | Studio | Pro |
|---|---|---|---|---|
| Monthly file downloads | 3 | 200 | 600 | 4,000 |
| Direct model processing in browser | ✓ | ✓ | ✓ | ✓ |
| Automatic dimensions and sections | Preview | ✓ | ✓ | ✓ |
| PDF, DXF R2000, DXF R12, SVG | Limited | ✓ | ✓ | ✓ |
| Mechanical and architectural sheets | Preview | ✓ | ✓ | ✓ |
| Support | Community | Priority | Priority |
Private by architecture
Your model does not need to leave your machine.
Ortho2D performs geometry processing inside the browser, reducing upload delays and unnecessary exposure of project files.
Localgeometry processing
Fastno upload queue
OpenDXF / SVG output
Questions
Good to know.
Does Ortho2D upload my model?
No. The current engine performs model parsing and drawing generation in your browser. Some format-reader libraries are loaded from a CDN, but your geometry is processed locally.
Can I import native 3ds Max or Blender files?
Native .max and .blend scene files need conversion first. Export GLB/glTF for the most reliable path, or use FBX when needed.
Why is DWG not offered?
Reliable browser-side DWG writing is not available. Ortho2D exports standard DXF files that open in AutoCAD and other CAD applications and can then be saved as DWG.
Which drawing standards are supported?
The engine includes ISO and ANSI sheet sizes, first- and third-angle projection, ISO line-weight groups, standard scales, and mechanical or architectural title layouts.
What counts as one file download?
Each exported PDF, DXF R2000, DXF R12, or SVG file counts as one download. Importing models, previewing views, adjusting settings, and regenerating the on-screen sheet do not consume the monthly allowance.
When does the download allowance reset?
The allowance resets once per monthly subscription cycle. The Free plan includes three downloads each month; paid plans include 200, 600, or 4,000 downloads according to the selected tier.
Ready when you are
Turn the next 3D model into a drawing—not a drafting project.
Open the browser engine, load a model, and build your first sheet in minutes.
Launch Ortho2D ↗