Digital graph paper for diagrams, technical sketches and geometric art.




The best Diagram Editor alternative to Lucidchart is draw.io, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Lucidchart and many of them are Diagram Editors so hopefully you can find a suitable replacement. Other interesting Diagram Editor alternatives to Lucidchart are Excalidraw, LibreOffice - Draw, yEd Graph Editor and Dia.
Digital graph paper for diagrams, technical sketches and geometric art.




Gaphor is a WYSIWYG (What You See Is What You Get) UML and SysML modeling environment easy to use that will help you create your applications.



ProcessOn is a free online drawing tool that supports the creation of mind maps, flow charts, swimlane diagrams, network topology diagrams, fishbone diagrams, UML and other graphics.





Web-based diagram platform offers real-time teamwork, 50+ diagram and mind mapping types, technical wireframing, smart objects, templates, version control, secure cloud storage, PDF export, collaboration tools, commenting, and integration for business and education use.




More affordable alternative with similar features.

Cacoo is a user-friendly online diagramming tool that allows you to create a variety of diagrams such as wireframes, flowcharts, UML diagrams, network diagrams, mindmaps, sitemaps, database diagrams, and more.




Cacoo is the same as Lucidchart in term of functionality, and it's cheaper.

Astah UML is a UML modeling editor with a user-friendly interface. It allows for the creation of various UML 2.x diagrams and mindmaps. The software includes features such as auto-creation of class diagrams, customizable shortcut keys, and merging project files.
EDGE Diagrammer is a diagramming tool for creating various types of diagrams including block diagrams, flowcharts, and organizational charts. It automatically connects lines to figures, adjusts when objects are moved, and modifies shape size when text is added.

Eraser is an all-in-one ideation tool for distributed teams. Eraser allows users to communicate ideas at the speed of thought using a markdown note editor, a lightweight canvas. Use Eraser for brainstorming, diagramming, wireframing, and interviewing!



Moredraw is a thought recording whiteboard with multiple types of nodes built in, including flowcharts, mind maps, pictures, notes, videos, to-do lists, charts, etc. Any node can be linked to help you organize your thoughts.

Cloudairy is an innovative cloud-native collaboration platform tailored for teams who demand speed, simplicity, and seamless teamwork. Designed to streamline the creation, management, and sharing of dynamic visual content, including diagrams, flowcharts, mind maps, and documents.




Savnet is a visual tool for designing software architecture diagrams and turning them into animated presentations that explain systems step by step.




Modeldraw is a comprehensive diagramming platform designed for teams and businesses who need professional visual documentation tools. Create UML diagrams, system architecture diagrams, flowcharts, mind maps, wireframes, and Agile workflow diagrams all in one platform.




It's an online diagramming platform similar to Lucidchart that can create many kinds of diagrams. You can use most of its functions for free.