Dia is free, open source drawing software for structured diagrams, with downloads, shapes, and documentation.
UMLet vs JDL Studio
How do UMLet and JDL Studio compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | UMLet | JDL Studio |
|---|---|---|
| What it is | UMLet provides free, open source UML drawing with a simple interface for making diagrams, including sequence and activity diagrams. | JDL-Studio draws UML diagrams from JDL syntax and provides instant feedback with customizable styling. |
| Website | ||
| Type | Online tool | Online tool |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Linux, macOS, Web, Windows | Web |
| Open source | Not stated | Not stated |
| Language | English | English |
| Alternatives |
Other options to consider
Sites similar to both UMLet and JDL Studio.
SankeyMATIC builds flow diagrams for comparing quantities across stages, with examples covering budgets, results, and processes.
Kroki provides one API for generating diagrams from textual descriptions using libraries such as Mermaid, PlantUML, Graphviz, and D2.
Mermaid generates diagrams such as flowcharts and sequence diagrams from text using syntax similar to Markdown.
Swimlanes.io creates sequence diagrams from text in a browser and lets users download diagrams or share them through links.
PlantText provides an online editor for PlantUML code and generates class, sequence, activity, and state diagrams.





