Engineering Thinking, on your Drawings.
Think. Draft. Share.
A quiet design space to capture and deliver precise ideas.
Vector Line
Fidelity and Drafting
Import
DXF
Export
Built for Engineers, Architects, Creators, and Doers.
Technical Foundation
Engineered from the Rendering Layer Up
Vellum does not sit on top of a PDF viewer. It replaces it.
Vector Rendering Engine
See drawings exactly as they were meant to be.
A native vector pipeline renders every line, arc, and annotation with mathematically defined precision — independent of zoom level or export resolution.
Precision Snapping
Place annotations exactly where they belong.
Snap to geometry, intersections, and perpendiculars in real coordinates with measurement accuracy engineers expect.
High-Fidelity Export
What you mark up is what you get.
Export to PDF and DXF with geometry preserved exactly. No rasterization. No approximation.
Design Thinking on Drawings
Work through ideas directly on the drawing.
Draft alignments, explore geometry, and refine details without leaving the review surface.
Features
Everything you need to think on a drawing.
Beautiful linework
Draw precise strokes that stay sharp at any zoom level. Vellum's vector engine keeps every line crisp, smooth, and faithful to your intent.
Draft to scale
Measure, draft, and annotate directly on drawings with true geometric accuracy. Vellum understands real dimensions so your ideas stay grounded in reality.
Export to DXF
Send your ideas directly into CAD workflows. Export clean DXF geometry so revisions move faster from markup to production.
Your canvas. Anywhere.
Take your thoughts with you. Vellum lets you open drawings and explore ideas from anywhere — even from the canvas in your pocket.
Design
From thought to line. Instantly.
Designers have always used drawings to explore ideas. But modern software often interrupts that flow.
Too many tools are built for documentation instead of thinking — turning a simple line into menus, modes, and fragile markups.
Vellum restores the simplicity of a true drawing surface. So ideas can move from mind to line quickly, clearly, and beautifully.
Big ideas begin with a single line.
Drawings aren't just documentation.
They're where ideas take shape.
A quiet surface where you can think clearly
and draw precisely.
— Ross, Founder, Vellum
Early Access
We build to serve.
We're currently inviting early users in small groups to help shape the platform. We care about building a product with precision.
FAQ
Common questions
Begin your next draft.