UMLet provides free, open source UML drawing with a simple interface for making diagrams, including sequence and activity diagrams.
Dia vs Kroki
How do Dia and Kroki compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | Dia | Kroki |
|---|---|---|
| What it is | Dia is free, open source drawing software for structured diagrams, with downloads, shapes, and documentation. | 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 | Linux, macOS, Web, Windows | Web |
| Open source | Not stated | Not stated |
| Language | English | English |
| Alternatives |
Other options to consider
Sites similar to both Dia and Kroki.
SankeyMATIC builds flow diagrams for comparing quantities across stages, with examples covering budgets, results, and processes.
PlantUML generates UML and other diagrams from textual descriptions and exports results in formats including PNG, SVG, and PDF.
Graphviz creates diagrams from graph descriptions and provides open-source software for visualizing structural information.
PlantText provides an online editor for PlantUML code and generates class, sequence, activity, and state diagrams.
DiagramGPT generates diagrams from text prompts, with the project page describing diagram workflows for teams.





