Side by side

StarUML vs UML Lab

Both stand on uml modeling software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

StarUML

Free trial ExtensionLinuxMac+1

StarUML covers a broad range of modeling languages and diagram outputs, with extensibility through JavaScript and extensions. Its paid, per-device licensing and stated platform requirements should guide purchase decisions.

Visit StarUML

UML Lab

Paid

UML Lab brings UML modeling and code-related work into an Eclipse workflow, with round-trip synchronization and support for existing software. Consider it if those capabilities match your development process; pricing details are not available here.

Visit UML Lab

The facts

	StarUML	UML Lab
Free plan	A free trial	Not published
Open source	Not published	Not published
Runs on	Extension, Linux, Mac, Windows	Not published
Lowest paid plan	StarUML V7 Standard: $129 per device, paid once	Not published
Plans published	2	None
Maker	StarUML	Not published
Website	staruml.io	uml-lab.com
On uml modeling software	#22 of 26	#26 of 26

StarUML: what it does well

Supports UML 2 and many additional modeling languages
Creates diagrams from Mermaid descriptions
JavaScript extension and community registry
Code generation through open-source extensions
Exports PNG, JPEG, SVG, PDF, and HTML

What to know first

No free plan
Pricing is a one-time per-device purchase
Linux requirements list Ubuntu 22.04 or Fedora 40
Professional plan costs $199 a month

UML Lab: what it does well

Works with Eclipse for UML editing and code generation
Supports class and component diagrams
Synchronizes models and code in real time
Includes language templates and customization options
Supports reverse engineering of existing software

What to know first

Paid product
No price is stated in available pricing content
No security or compliance details are stated

Alternatives to StarUML Alternatives to UML Lab The whole list