Colibri Diagrams Alternatives

Clean and fast online sequence diagram tool using scripting and Drag and Drop

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

Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features. We're Open Source.

Try for free Open Source freemium

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

Online diagramming application

Open Source

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

Open Source

A tool for generating diagrams and flowcharts from text.

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.

A collection of User Interface resources made by Craftwork

js-sequence-diagrams turns text into UML sequence diagrams.

A pre-assembled kit for GV design sprints.

A diagramming tool for software architecture

freemium $4.99 / Monthly

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.

FlowMapp is a UX planning tool for creating visual sitemaps and user flow.

freemium $15.0 / Monthly (5 projects, unlimited sitemaps, user flows, personas, CJM's)