Common questions about Diagram App.
Diagram App is a free, browser‑based tool for creating cloud architecture diagrams. It supports AWS, Azure, GCP, on‑premise components, and custom icons. The app runs entirely in your browser, with no installation or account required.
Yes. Diagram App is completely free.
There are no licence requirements, no subscriptions, and no usage limits. You can use it for personal projects, professional work, teaching, or anything else.
No. The editor works without registration.
All features are available immediately when you open the site.
No. Diagram App runs fully client‑side.
Your diagrams stay on your device and are never uploaded to a server. You choose when and where to save or export your work.
Diagram App works on all modern browsers, including:
For the best performance, use the latest version of your browser.
Yes. You can export diagrams as:
Exports happen entirely in your browser.
Yes. You are free to use diagrams created with the editor in commercial work, documentation, presentations, and client projects.
Yes. Common shortcuts include:
More shortcuts are listed in the Help page.
Yes. You can upload custom SVG icons and use them alongside the built‑in cloud provider icons.
No. You can create diagrams as large or as detailed as you need. Performance depends on your device and browser.
Diagram App is a small independent project built to provide a fast, lightweight alternative to heavy subscription‑based diagramming tools.
You can reach out through the Contact page or submit feedback directly via the project's GitHub repository.
Yes. The editor is actively maintained, and new features, icons, and improvements are added regularly.