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Orthographic views
Create front, top, side, back, bottom, and isometric views from the same model.
Browser-native drawing engine
3D to 2D drawing converter that gives you real dimensions, not a silhouette.
Ortho2D turns a 3D model into a 2D drawing — orthographic views, sections, automatic dimensions, standards line weights and a professional title block. Import STL, STEP, OBJ, GLB, FBX, IGES or 3DM; export PDF, DXF and SVG. Everything runs in your browser, with no CAD install.
✓No installation✓Local processing✓Free to build — $3 to download
✓Drawing ready3D model → dimensioned sheet
⌁Private by designGeometry stays in your browser
Works with the formats you use
GLB / glTFFBXOBJSTLSTEPIGES3DM3MFPLY→ PDF→ DXF→ SVG
60-second demo
Watch a model become a drawing.
A 3D model goes in; orthographic views, sections, automatic dimensions and a titled sheet come out — then export PDF, DXF or SVG. No install, no upload.
Try it yourself ↗
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Built for real production
Less drafting. More engineering.
Ortho2D handles the repetitive drawing work while keeping the decisions in your hands.
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Automatic dimensions
Generate useful overall, chain, circular, and centre-line annotations in your chosen unit.
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Section intelligence
Cut interiors, position a 3D clipping plane, and produce clean hatched sections.
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Hidden-line control
Adjust edge recognition and visibility sampling for readable technical output.
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Professional sheets
Use ISO and ANSI sheets, automatic scales, standards-based line weights, and title blocks.
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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
Open the 3D to 2D drawing engine ↗
See the model and the drawing together.
Orbit the geometry, place sections, and immediately understand how each decision affects the finished sheet.
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Visual section placementMove and rotate the section plane directly in the 3D viewport.
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Controlled regenerationApply changes when ready or enable automatic updates.
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Undo-friendly workflowExplore drawing settings without losing the previous result.
Every common conversion
3D model to 2D drawing, whatever you model in.
Ortho2D is not a format swap. It reads the solid or mesh, works out which edges are actually visible, and draws a real technical sheet — views, sections, dimensions and title block — from the geometry.
STL to DXF & PDF
Turn a printed or scanned mesh into a dimensioned drawing with clean arcs recovered from the tessellation.
STEP to 2D drawing
Take a manufacturing exchange solid straight to orthographic views, sections and a fabrication-ready PDF or DXF.
OBJ to CAD drawing
Drop in an OBJ, confirm the units, and get a scaled drawing instead of a screenshot.
GLB / glTF to DXF
The most reliable route out of Blender, 3ds Max, SketchUp and Revit — export GLB, drop it in, draw it.
FBX to shop drawings
Animation and architecture pipelines export FBX; Ortho2D reads it and documents it.
IGES to PDF drawing
Legacy exchange files open in the browser and land on an ISO or ANSI sheet.
3DM (Rhino) to 2D
Rhino models become plans, elevations and sections without leaving the browser.
3MF & PLY to drawing
Additive-manufacturing and scan formats get the same dimensioned treatment.
Any model to SVG
Scalable vector output for reports, presentations, laser cutting and web documentation.
Other names for the same job
Different trades ask for this under different names. A machinist wants a technical drawing from a STEP file; a fabricator asks for shop drawings or working drawings; an architect says blueprints, plans, elevations and sections; someone holding a printed part just wants the mesh turned into a DXF. It is one piece of work — orthographic views, sections and dimensions generated from the geometry instead of drafted by hand, and done without an AutoCAD seat.
Three steps
3D model in. Engineering 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.
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Free workspace
Build the whole drawing at no cost. Pay only when you take the file away.
$0/ month
Downloads from $3 each
- Complete browser workspace
- All supported model imports
- Orthographic and isometric views
- Dimensions, sections and title blocks
- Local geometry processing
Professional
For independent engineers and fabricators producing drawings regularly.
$19/ month
200 file downloads / month
- Everything in the free workspace
- 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.
How do I convert a 3D model to a 2D drawing?
Open Ortho2D in your browser, drop in an STL, STEP, OBJ, GLB, FBX, IGES or 3DM file, confirm the units and orientation, then choose the views, sections and dimensions you want. Ortho2D lays the engineering drawing out on a standards-based sheet and exports PDF, DXF or SVG.
Can Ortho2D convert STL or STEP files to DXF?
Yes. Ortho2D reads STL, STEP, IGES, OBJ, GLB, glTF, FBX, 3DM, 3MF and PLY, and writes DXF R2000 and DXF R12 with real CAD layers and entities, plus PDF and SVG.
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.
Can I convert a 3D model to DWG?
Not directly, and no honest browser tool can: reliable DWG writing is not available client-side. Ortho2D exports standard DXF, which AutoCAD, BricsCAD, ZWCAD and LibreCAD all open, and any of them will save it out as DWG in one step.
Which drawing standards does Ortho2D follow?
The engine includes ISO and ANSI sheet sizes, first- and third-angle projection, ISO 128 line-weight groups, ISO 3098 lettering, standard scale ladders, and mechanical or architectural title blocks.
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. Paid plans include 200, 600 or 4,000 downloads according to the selected tier. There is no free download allowance — downloading a file requires a $3 single export or a subscription, though building the drawing on screen is free and unlimited.
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 ↗