Architecture diagrams
Architecture diagrams that stay readable
Services, gateways, databases, caches and queues — connected with clean routed lines and grouped into networks or regions.
- Free, no sign-up
- Saved on your device
- No watermark
The basics
What is an architecture diagram?
A software architecture diagram shows the building blocks of an application and how they talk to each other: clients, gateways, services, data stores, queues and third-party providers.
Good diagrams make design reviews faster, onboard new engineers quickly and help everyone spot single points of failure.
What you can add
- Users
- Internet
- Web app
- Mobile app
- Load balancer
- Server
- Container
- Function
Features
What makes it work
Service and data icons
Load balancers, servers, functions, services, databases, caches, queues, auth and more.
Three ready-made patterns
Three-tier web app, microservices with an event bus, and a serverless mobile backend.
Networks and regions
Wrap private parts in a frame — it carries everything inside when you move it.
- Real templatesStart from a worked example and make it yours.
- Smart connectorsDrag a + handle to connect; Tab adds the next step.
- PNG, SVG & file exportFor docs and slides — or a .json to keep editing.
- Share linksSend a link; whoever opens it gets their own copy.
- Private by defaultSaved in your browser. Nothing is uploaded.
- Works on touchPan, pinch and edit on a tablet or phone.
Templates
Start from a worked example
Open one, change the words and it's yours — every element stays editable.
How it works
Three steps to done
- Step 1
Pick the three-tier, microservices or serverless template.
- Step 2
Rename services, add or remove parts, and draw the data flows.
- Step 3
Export for your design doc or share a link for review.
Use cases
Who it's for
Design reviews
Agree the shape of a system before building it.
Onboarding
Give new engineers the map of how things fit together.
Cloud migrations
Draw today's setup next to the target architecture.
Architecture Diagram
Common questions
Does it include AWS, Azure or GCP icons?
It uses generic icons (server, function, database, storage, queue, load balancer…) that work for any cloud. Label them with the service name you use.
Can I show data flow direction?
Yes — every connector has arrowheads you can change, plus optional labels and dashed lines.
Can my team review it?
Share a link or a .json file — each reviewer opens their own copy. There's no live co-editing.
Is it free?
Yes, free with no sign-up.
More solutions
Keep going
Ready when you are
Free in your browser — no account, no download, no watermark.