Vellum
Whiteboard speed, architecture-review finish
Vellum is Blueprintr's diagram editor. Sketch a system in minutes, tidy it into an architecture diagram, and open a document behind any shape. It runs in the browser and on the desktop.
Free plan and up
Browsing the shape library, drawing the connection from EC2 to RDS, and tidying how it routes.
Why Vellum
Sketch or formal diagrams, the best of both worlds.
Draw like it's a whiteboard
Grab a shape from the library, pull a line to the next one, keep going. Ten minutes is enough for a first pass.
Land on something presentable
Straighten the same board for the architecture review. Snap the geometry, route the elbows, drop in icons for AWS, Azure, GCP and Kubernetes.
Every shape is a door
Bind a shape to a stratum: clicking it opens the markdown, tables, code and files behind it. One shape can open a second diagram.
Features
More about Vellum
Or bring your own editor
Draw.io, Excalidraw and Mermaid are there too. Strata bind to shapes in all four editors.
Live collaboration
Multi-cursor editing, Premium and up. Two people draw different halves of one board at once.
On the desktop too
A native macOS, Windows and Linux app. It updates itself.
Exports that behave
PNG, SVG, PDF and GIF from the editor. The PNG and SVG reopen in Vellum.
Examples
Boards drawn in Vellum
Published diagrams you can open and pan around.
Data centre fabric
A 100G leaf-and-spine fabric with physical and EVPN/VXLAN views. Includes switch interfaces, tenant addressing, routing and maintenance procedures.
Multi-tenant SaaS platform
Sandgate's platform for 400 tenants. Covers routing, row-level security, pooled and siloed databases, resource limits and schema migrations.
Heat-pump telemetry model
Thornhill's telemetry pipeline for 60,000 heat pumps. Covers ingestion, measurement schemas, tag cardinality, retention and rollups.
Works with
Vellum is one part of Blueprintr
FAQ
Questions about Vellum
Is Vellum a separate product from Blueprintr?
No. Vellum is Blueprintr's diagram editor. It runs in the browser and as a native app for macOS, Windows and Linux, and the app updates itself.
Can I use draw.io, Excalidraw or Mermaid instead?
Yes. All four editors are available, and a shape in any of them can carry a stratum.
Can two people draw on the same board?
Multi-cursor collaboration is on Premium and up. Two people can draw different halves of one board at the same time.
Are there icons for AWS, Azure and Kubernetes?
Yes. Vendor stencils cover AWS, Azure, GCP and Kubernetes, and you choose which packs are installed.
What can I export?
PNG, SVG, PDF and GIF. The PNG and SVG carry the source inside them, so both reopen in Vellum.
Does it cost anything?
Vellum is on the free plan. Collaboration is the part that needs Premium.