About NoSignup Diagrams
NoSignup Diagrams is a free, browser-based diagram editor for students, developers, analysts, project managers and anyone who needs to explain an idea visually.
What you can do
Fifteen editors cover the most common diagram types: flowcharts, swimlanes, network and architecture diagrams, UML use case, class, state and sequence diagrams, ER diagrams with SQL export, mind maps, org charts, BPMN processes, wireframes, Gantt charts and Kanban boards. Every diagram can be exported as a PNG image or a PDF document.
Privacy by design
We built NoSignup Diagrams so that you never have to hand over your work. There is no registration and your diagrams are never uploaded: everything is drawn in your browser and saved as a file on your own device. You decide where your projects are stored and who sees them.
How the site is funded
NoSignup Diagrams is free to use and is supported by advertising shown at the sides of the editors. Ads never cover the drawing area. You can read how advertising cookies work in our privacy policy.
Feedback
Found a bug or missing a feature? We would love to hear from you at suat197@gmail.com.