Gliffy Alternatives

LucidChart is the missing link in online productivity suites. LucidChart allows users to create, collaborate on, and publish attractive flowcharts and other diagrams from a web browser.

OmniGraffle is for creating precise graphics like website wireframes, an electrical system designs, or mapping out software class.

GEES is an all-in-one AI design platform that is shaping a future where you can brainstorm, design, hand-off in one file — without changing any other tools.

Visit website freemium

Online diagramming application

Open Source

yEd is a free desktop application to quickly create, import, edit, and automatically arrange diagrams. It runs on Windows, Mac OS X, and Unix/Linux.

PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams.

Open Source

Simplify and communicate complex information using data-linked diagrams.

The prototyping and specification software used by 87% of the Fortune 100. Beyond mockups, design interactive prototypes for business solutions, websites, and applications.

The most stunning HTML5 app for creating resolution-independent SVG mockups, wireframes & interactive prototypes for your next project

Dia is a GTK+ based diagram creation program for GNU/Linux, MacOS X, Unix, and Windows, and is released under the GPL license.

A cloud-based diagram maker for companies, teams, and you.

Balsamiq. Rapid, effective and fun wireframing software.

UMLGraph is a professional automated drawing tool that allows the designers the declarative specification and drawing of UML class and sequence diagram.

Instead of starting with a blank screen, SmartDraw gives you the exact template you need.