Pencil with symmetry
Free sketching mirrored on vertical and horizontal construction lines at the same time.
Free 2D/3D CAD in the browser · v15
From sketch to printed part — all in your browser
VectorPro brings together a 2D sketch editor, a parametric 3D modeler, mechanical assemblies, a 3D printing slicer, technical drawings and a wind tunnel. No install: it opens on a PC, tablet or phone and can be installed as an app.
- No install · PWA
- Works offline
- STL · 3MF · STEP · OBJ · SVG · DXF · G-code
- PT · EN · ES
33ready printer profiles
16,000+free online parts
2D + 3DCFD wind tunnel
0installs or servers to slice
New in this version
Move on the plane
Arrow keys move parts only inside the selected work plane.
Smart slicing
Tests orientations and profiles and finds the fastest way to print on your printer.
Pause at layer
Stop at any layer to insert magnets, nuts or change the filament color.
Your own printers
Create, import and export printer profiles — saved in your account when signed in.
Volumetric wind tunnel
3D streamlines and animated particles around cars, wings and drones, in high definition.
Everything you need to design and make
One workspace, from the first sketch to the G-code — the heavy calculations run in your browser without freezing the screen.
2D Sketch
Precise drawing in millimeters for laser cutting, CNC and as the base of 3D parts.
- Rectangles, polygons, slots, arcs, pen, text and the new pencil
- Symmetric pencil on construction lines (4-way)
- Booleans, offset, fillet, chamfer, linear and circular patterns
- Constraints and dimensions: parallel, tangent, equal, distance…
- SVG / DXF import and export, image auto-trace
Parametric 3D modeling
Turn sketches into solids and change them through variables and the feature tree.
- Extrude, revolve, sweep, loft, shell and 3D text
- Fillets and chamfers by edge selection, ribs and draft angle
- Union, subtraction and intersection (CSG) with watertight meshes
- Pattern along a path, mirror, groups and work planes
- Arrow keys move parts on the active plane
Mechanical parts
Parametric, printable parts — and a free online catalog.
- Bearings, GT2 pulleys and belts, shafts, couplings, T-slot profiles
- MGN linear rails, print-in-place hinges, heat-set inserts, nut traps
- ISO bolts, nuts and gears (spur, helical, bevel, worm, planetary)
- Online library with 16,000+ parts (step.parts, open licenses)
Assemblies
Put parts together and check how they fit and move.
- Mates: coincident, concentric, distance, parallel, angle
- Joints with limits, collision and gear ratios
- Linked copies and print clearances (press, snug, sliding)
- Exploded view (animated) and bill of materials in CSV
3D printing slicer
Kiri:Moto engine running inside the browser — free, private and offline.
- 33 printers: GTMax3D, Creality, Bambu Lab, Prusa, Elegoo, Anycubic…
- Smart mode: fastest orientation and profile for your printer
- Pause at layer, 7 infill patterns, vase mode, advanced supports
- Your own printers, import/export of settings, cloud sync
- Print check: watertight mesh, overhangs, thin walls, best orientation
Technical drawing and STEP
Documentation and exchange with other CAD tools.
- Front, top, side and isometric views (ISO/ABNT or ANSI)
- Hidden lines, overall dimensions and title block → SVG, PDF, DXF
- STEP/IGES import (OpenCascade) and STEP export
- Interference check between parts
Wind tunnel / CFD
Real-time flow simulation (Lattice-Boltzmann) in 2D and 3D.
- Speed, pressure, vorticity and smoke views
- Drag and lift coefficients, internal flow in pipes
- 3D streamlines filling the volume, animated particles
- Validated against the DFG benchmark; reports, CSV and PNG
Blocks, sculpting and AI
Creative tools for classes and organic shapes.
- Block programming (Blockly) for parametric geometry
- Digital sculpting with brushes
- Relief and lithophanes from photos with AI depth (runs locally)
Viewer, cloud and app
Present, store and use it anywhere.
- OBJ viewer with PBR materials and video recording
- Cloud projects for signed-in users
- Installable app (PWA) that opens without internet
Printers ready to use
Choose your printer, slice and download .gcode (or .gcode.3mf for Bambu Lab). Missing one? Create your own profile in seconds.
- GTMax3D
- Core A1V2, Core A2V2
- Creality
- Ender 3 / V2 / S1 / V3 / V3 SE / V3 KE, Ender 5 S1, CR-10 V3, K1, K1 Max, K2 Plus
- Bambu Lab
- A1, P1S / P1P, X1 Carbon (.gcode.3mf)
- Prusa
- MK3S+, MK4 / MK4S, MINI, CORE One
- Anycubic
- Kobra 2, Kobra 2 Max, Kobra 3
- Elegoo
- Neptune 4 / 4 Pro, Neptune 4 Max
- Flashforge · Sovol · Artillery · QIDI · Voron
- Adventurer 5M, SV06, SV08, Sidewinder X2, Q1 Pro, Voron 2.4
- Marlin / Klipper
- Generic profiles + your own printers
How it works
- 1Sketch
Draw the profile in 2D with real measurements, constraints and symmetry.
- 2Model
Extrude, revolve, loft, add mechanical parts and edit by parameters.
- 3Assemble and test
Mates, joints, clearances, wind tunnel and print check.
- 4Make
Slice for your printer, export STL/3MF/STEP or a technical drawing.
How VectorPro compares
Each tool has its place. A general overview to help you choose — check each vendor's official site for current plans and features.
Yes Partial / limited / add-on No
| VectorPro | Tinkercad | Fusion | SOLIDWORKS | |
|---|---|---|---|---|
| Runs in the browser, no install | Yes | Yes | Partial / limited / add-on | Partial / limited / add-on |
| Tablet and phone | Yes | Yes | Partial / limited / add-on | Partial / limited / add-on |
| Free | Yes | Yes | Partial / limited / add-on | No |
| Learning curve | Low | Very low | Medium / high | High |
| 2D sketch with booleans, constraints and dimensions | Yes | Partial / limited / add-on | Yes | Yes |
| Parameters and feature tree | Partial / limited / add-on | No | Yes | Yes |
| Extrude, revolve, sweep, loft and shell | Yes | Partial / limited / add-on | Yes | Yes |
| Mechanical parts library | Yes | Partial / limited / add-on | Yes | Yes |
| Assemblies, mates and joints with collision | Yes | No | Yes | Yes |
| Built-in 3D printing slicer (G-code) | Yes | No | Partial / limited / add-on | No |
| Wind tunnel / CFD | Yes | No | Partial / limited / add-on | Partial / limited / add-on |
| Technical drawings | Yes | No | Yes | Yes |
| STEP exchange (B-rep) | Partial / limited / add-on | No | Yes | Yes |
| Relief / lithophane from a photo (AI) | Yes | No | No | No |
| Block programming | Yes | Yes | Partial / limited / add-on | Partial / limited / add-on |
| CAM and structural simulation (FEA) | No | No | Yes | Yes |
| Main exports | STL, 3MF, STEP, OBJ, SVG, DXF, PDF, G-code | STL, OBJ, GLB, SVG | STEP, IGES, STL, 3MF, F3D… | SLDPRT, STEP, IGES, STL, 3MF… |
“Partial” for Fusion and SOLIDWORKS in the browser/mobile refers to separate web products or viewer apps; for Fusion “free” means the personal-use license. CFD and slicing in those tools depend on extra modules or partner software. VectorPro works with meshes: STEP export uses planar faces and parameters cover the creation values of each feature.
Strengths and limits
VectorPro
Strengths
- Opens instantly on any device and installs as an app
- Design, assembly, slicer, drawing and CFD in one place
- Slicing and heavy calculations run locally, free
- Made for 3D printing, makers and classrooms
Limits
- Mesh-based modeling (not a full B-rep kernel)
- Parameters per feature, not a full constraint-driven history
- No CAM or structural FEA
- Very large models depend on the browser/GPU
Best for: Makers, 3D printing, classrooms, quick mechanical prototypes and presentations.
Tinkercad
Strengths
- The easiest way to start in 3D
- Excellent for schools, with Codeblocks and circuits
- Free and in the browser
Limits
- Basic precision and tools
- No real sketches or advanced features
- Not suited to complex mechanical design
Best for: Children, first steps in 3D and simple prints.
Fusion
Strengths
- Parametric + direct modeling, assemblies and joints
- Integrated CAM, simulation and generative design
- Free license for personal use (limited)
Limits
- Desktop install and a good computer
- Steeper learning curve
- Commercial use requires a subscription
Best for: Product design, CNC and advanced hobbyists.
SOLIDWORKS
Strengths
- Industry standard, robust parametric modeling
- Drawings, large assemblies, simulation (higher tiers)
- Huge community and job market
Limits
- Windows desktop software, heavy
- Expensive commercial licenses
- Long learning path
Best for: Professional mechanical engineering and industry.
Frequently asked questions
Is VectorPro free?
Yes. The Editor, the slicer, the wind tunnel and the Viewer are free. Saving projects in the cloud is a Premium feature granted by the administrator; slicer settings are saved in your account for any signed-in user.
Do I need to install anything?
No. It runs in recent Chrome, Edge, Firefox and Safari. You can also install it as an app (PWA) from the Help menu and open it without internet.
Which 3D printers are supported?
33 ready profiles, including GTMax3D Core A1V2 and A2V2, Creality Ender 3 / V3 / K1, Bambu Lab A1, P1S and X1C, Prusa MK4 and CORE One, Elegoo Neptune 4, Anycubic Kobra 3, Sovol, QIDI and Voron — plus generic Marlin/Klipper and your own printers.
Is my model uploaded to slice it?
No. The Kiri:Moto slicer runs inside your browser (Web Workers). Your files stay on your device.
Can I pause the print at a layer?
Yes. Add pauses at any layer (M600, M0/M25, Klipper PAUSE or Bambu Lab pause) to insert magnets or nuts or to change the color.
What does the smart mode do?
It slices several candidates — the best orientations and fast, balanced or strong profiles — and shows the fastest option that keeps your goal, ready to apply.
Can I open STEP files?
Yes. STEP/IGES are imported with OpenCascade in the browser, and models can be exported to STEP to continue in SolidWorks, Fusion or FreeCAD.
Are my photos uploaded for the AI relief?
No. The image is processed in your own browser; only the AI model is downloaded once and cached.