UMLet provides free, open source UML drawing with a simple interface for making diagrams, including sequence and activity diagrams.
JDL Studio vs Kroki
How do JDL Studio and Kroki compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | JDL Studio | Kroki |
|---|---|---|
| What it is | JDL-Studio draws UML diagrams from JDL syntax and provides instant feedback with customizable styling. | Kroki provides one API for generating diagrams from textual descriptions using libraries such as Mermaid, PlantUML, Graphviz, and D2. |
| Website | ||
| Type | Online tool | Online tool |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Web | Web |
| Open source | Not stated | Not stated |
| Language | English | English |
| Alternatives |
Other options to consider
Sites similar to both JDL Studio and Kroki.
Mermaid Live Editor creates charts and diagrams from text using Mermaid’s markdown-like syntax in a browser.
SankeyMATIC builds flow diagrams for comparing quantities across stages, with examples covering budgets, results, and processes.
Mermaid generates diagrams such as flowcharts and sequence diagrams from text using syntax similar to Markdown.
PlantText provides an online editor for PlantUML code and generates class, sequence, activity, and state diagrams.
PlantUML generates UML and other diagrams from textual descriptions and exports results in formats including PNG, SVG, and PDF.





