
UMLGraph
draw.io
Dia
LucidChart
yEd
OmniGraffle
UMLet
CollabNet
CodeHerald
CodeHerald provides a new way to keep track of your code review queue, grouped by your next action needed.
If any of the above is true, CodeHerald will help you.
CodeHerald groups pull requests by next action: must review, needs an update, can be merged. It allows you to replace slack, emails, filters, and browser bookmarks with one single page that you can open at a glance and decide which PR to tackle next.
UMLGraph
CodeHeralddraw.io - Online diagramming application
Dia - Dia is a GTK+ based diagram creation program for GNU/Linux, MacOS X, Unix, and Windows, and is released under the GPL license.
LucidChart - 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 - 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.
OmniGraffle - OmniGraffle is for creating precise graphics like website wireframes, an electrical system designs, or mapping out software class.
UMLet - UMLet - Free UML Tool for Fast UML Diagrams