Describe it.Convert it.View it.
AI-generated functional parts + a CAD viewer & converter for any file. No CAD skills, any device.
Single functional parts, ready to 3D print or machine — right in your browser.
Free to upload & view. Sign up (free) to download. Credits to generate.
AI-Native
Built from the ground up with AI at its core
Cloud-First
Access your designs anywhere, anytime
Web-Based
No downloads, no installs, just open and design
Mobile Ready
Full CAD creation on phone and tablet
Instant Sharing
Share designs with a link in seconds
Free to Start
No credit card required, start designing today
Natural Language
CAD Design
Stop wrestling with complex CAD menus. Just describe what you need in plain English. PartWork's AI understands dimensions, standard hardware, and manufacturing constraints.
"Create a 4x3x1 inch mounting bracket with four M4 countersunk holes in the corners"Drawing to STEP in minutes, not hours or days
Upload a PDF or image of an engineering drawing. AI reads every view and dimension, builds a solid 3D model, and checks it back against your drawing. You get STEP and STL files, plus a quality report.
For legacy parts, replacement parts and customer prints: any drawing with no 3D model behind it.
True Parametric CAD Geometry
Unlike AI mesh generators, PartWork creates real B-rep solid geometry with precise dimensions — ready for CNC machining and 3D printing.
Exact Dimensions
Specify precise measurements. "50.5mm" means exactly 50.5mm, not an approximation. Tolerances you can trust for real manufacturing.
Real Solid Models
Industry-standard B-rep geometry, not polygonal meshes. Export to STEP and open in any professional CAD software with full editability.
Iterative Refinement
Keep refining your design conversationally. "Make it 2 inches taller" or "Add chamfers to all edges." AI remembers context.
Familiar Tools, AI-Powered
All the CAD operations you know from professional tools — but each one generates an AI prompt for you. No complex menus, just click and describe.
2D Sketching
3D Operations
Detail Features
Import & Export Anything
Bring in existing designs or export to any format. PartWork works seamlessly with your existing workflow and tools.
Import Formats
Export Formats
Works With Your Tools
Three ways to work with a part
View, convert, or generate a single functional part — all in your browser, on any device.
View
FreeUpload a STEP, IGES, or DXF file and view it in 3D — orbit, zoom, and inspect it on desktop or mobile. No account, no install.
Convert
Free to view · sign up to downloadImport one format and export another — STEP, STL, or 3MF. View the result free; sign up (free) to download the converted file.
Generate
Free trial creditsDescribe a single functional part in plain English and get manufacturable geometry. Sign up for free trial credits, then pay only for what you make.
Free to upload & view. Sign up (free) to download. Credits to generate.
Why PartWork.ai?
See how we compare to traditional CAD.
What You Can Create
Real mechanical parts for real projects.
Mounting Bracket
"L-shaped mounting bracket with holes"
Electronics Enclosure
"Enclosure with 2mm walls, bosses & vents"
Precision Spacer
"Cylindrical spacer with a center bore"
Cable Clip
"Cable routing clip with curved ends"
Sensor Mount
"Mounting plate with slotted holes"
Timing Pulley
"20-tooth pulley with 5mm bore"Free Tools
Open a CAD file right in your browser — free, nothing to install.
3D File Viewer
STEP, STL, OBJ, IGES, BREP, DXF or GLB — one place to open any of them.
STEP Viewer
Exact CAD geometry, with no triangle limit.
STL Viewer
The 3D printing standard, rendered in your browser.
OBJ Viewer
Meshes from scanning, sculpting and AI generators.
GLB Viewer
Web and AR models, plus the code to embed them.
IGES Viewer
Legacy CAD surfaces, from .iges and .igs files.
STEP to STL
Turn an exact solid into a printable mesh.
STL to STEP
Turn a print mesh into a STEP solid for CAD or a machine shop.
Gear Generator
Generate a printable spur gear to spec.
Running your own site? Embed the viewer on any page with one line.
Build with PartWork
Integrate AI-powered CAD generation into your own applications. Generate STEP and mesh files from text prompts via a simple REST API.
REST API
Simple JSON API to generate parts from text prompts
Multiple Formats
Get STEP, STL, 3MF, and GLB outputs
API Keys
Manage keys and usage from your dashboard
Ready to make your part?
Upload and view your CAD files free. Works on any device. No install.
Open the StudioFree to upload & view. Sign up (free) to download. Credits to generate — free trial credits to start, then about 10¢ per credit.