The system architecture canvas for developers who need flow and structure.
A modern diagramming tool that blends whiteboarding with structured system design. Start locally, then move into cloud workspaces when you are ready to share.
Features
Built for system architecture, designed for clarity
Flowstry combines a flexible whiteboard with structured diagramming so engineers can map complex systems without losing flow.
Local-first canvas
Start creating instantly with no login required. Your ideas stay on-device.
Live collaboration
Multiplayer editing with real-time cursor presence and instant sync.
Hand-drawn style
Switch to hand-drawn style for low-fidelity brainstorming/whiteboarding.
Structured diagramming
Precise layouts, connectors, and aligned components for clean system maps.
Workspaces & folders
Organize diagrams by team, project, or architecture layer.
Cloud sync
Sign up to sync across devices and keep everything in one place.
Frames & grouping
Group elements into logical frames to structure large architecture diagrams.
Export & share
Export to PNG/SVG or share your workspace with your team.
Shape library
AWS, GCP, Azure, and Kubernetes shapes included out of the box.
Architecture library
A structured shape library for modern systems
Drag cloud, data, and infrastructure shapes from the library panel. Flowstry includes AWS, GCP, Azure, and Kubernetes libraries for fast, consistent architecture diagrams.
Compute
Database
Queue
Cache
Load balancer
Storage
Workspaces
Cloud workspaces that keep system design organized
Create a free account to unlock cloud workspaces, folders, and saved diagrams that sync across devices.
Use cases
From brainstorm to production architecture
Flowstry helps backend engineers, architects, and DevOps teams document complex systems without losing the technical detail.
Start designing nowFlowstry
Ready to design your next system?
Start locally in seconds or sign up to unlock cloud workspaces, organization, and shared architecture diagrams.