System Design Diagram Maker

Make architecture relationships explicit

A system design diagram shows the major parts of a software system and how they communicate. It becomes useful when the arrows explain a request, data dependency, or event rather than merely connecting boxes.

Use it to review a design decision

Architecture discussions, onboarding, and design interviews benefit from a shared view of responsibilities. The URL-shortener example includes application servers, a cache, a database, and an analytics pipeline; it is a schematic rather than a deployment specification.

Give every box and arrow a purpose

1. State the viewpoint. A context view and a deployment view answer different questions.
2. Label the flow. Name the request, event, or data crossing each important connection.
3. Show ownership boundaries. Separate internal services from external providers and clients.
4. Distinguish proposals. Mark planned components so they cannot be mistaken for deployed infrastructure.
5. Include relevant failure paths. Retries, timeouts, or queue backlogs belong where they affect the design decision.

Draft from your architecture notes

MyMap places your components and connections on the canvas. Ask it to split a crowded view, trace a specific request, or add a boundary while checking that it has not introduced unsupported services.