Best Gleek.io Alternatives & Competitors in 2024

Online diagramming application

Open Source

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.

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

WebSequenceDiagrams is a web-based application that allows the user to use a proprietary language to define sequence diagram.

Swimlanes.io is a simple free online tool for making sequence diagrams.

Looking for an affordable software with Enterprise Architecture tool, PMBOK tool, UML tool, Agile tool, BPMN tool and UX tool? Read this page for details.

Gliffy is a powerful HTML5 online diagram maker. Create a flow chart, network diagram, UML diagram, organizational chart or wireframe with ease.

Make a dynamic mind map from a plaintext nested list

Open Source

StarUML

Simplify and communicate complex information using data-linked diagrams.

Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.

Coggle is a simple, beautiful, powerful way of structuring information.