UMLet provides free, open source UML drawing with a simple interface for making diagrams, including sequence and activity diagrams.
SwimLanes vs Dia
How do SwimLanes and Dia compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | SwimLanes | Dia |
|---|---|---|
| What it is | Swimlanes.io creates sequence diagrams from text in a browser and lets users download diagrams or share them through links. | Dia is free, open source drawing software for structured diagrams, with downloads, shapes, and documentation. |
| Website | ||
| Type | Online tool | Online tool |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Web | Linux, macOS, Web, Windows |
| Open source | Not stated | Not stated |
| Language | English | English |
| Alternatives |
Other options to consider
Sites similar to both SwimLanes and Dia.
DiagramGPT generates diagrams from text prompts, with the project page describing diagram workflows for teams.
PlantText provides an online editor for PlantUML code and generates class, sequence, activity, and state diagrams.
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.
Graphviz creates diagrams from graph descriptions and provides open-source software for visualizing structural information.





