SysCanvas

SysCanvas — System design diagrams, right from your phone Sketch clean architecture diagrams anywhere. Whether you're planning a new service, documenting an existing system, or just thinking through an idea, SysCanvas takes you from a blank canvas to a clear, presentable diagram in minutes. WHY SYSCANVAS • Fast and tactile — tap to add, drag to arrange, link to connect • Works offline — your designs stay on your device • No account, no clutter — just open and draw • Colour-coded nodes that read at a glance READY-MADE TEMPLATES Start instantly from common architectures, then make them your own: • URL Shortener (TinyURL) • News Feed (Twitter / Instagram) • Chat System (WhatsApp / Messenger) • Rate Limiter • Video Streaming (YouTube / Netflix) • Web Crawler & Search Index …or begin from a blank canvas. REAL BUILDING BLOCKS Drop in the components every architecture needs — Client, Load Balancer, API Service, Cache, Database, Object Storage, Message Queue, CDN and more. Each node is labelled and colour-coded so your diagram stays easy to follow. CONNECT LIKE SYSTEMS REALLY WORK • Draw arrows between any two nodes with the link tool • Label connections (e.g. "read", "store raw", "async fan-out") • Make links async (dashed) or two-way EDIT WITH EASE • Drag nodes to reposition • Tap to rename, change type or colour, or delete • Resize the canvas for big systems — pinch to zoom, drag to pan, Fit to re-centre SHARE & BACK UP • Save as PDF for a printable, shareable diagram • Export a design file (.json) to send or back up • Back up all designs and restore them on any device PERFECT FOR • Engineers planning microservices, data flows and infrastructure • Students learning software architecture • Teams documenting and reviewing system designs • Anyone who thinks better with a diagram Open SysCanvas and turn your next system into a clear picture.