UMLet provides free, open source UML drawing with a simple interface for making diagrams, including sequence and activity diagrams.
Dia vs draw.io
How do Dia and draw.io compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | Dia | draw.io |
|---|---|---|
| What it is | Dia is free, open source drawing software for structured diagrams, with downloads, shapes, and documentation. | draw.io provides a free, open source application for creating diagrams, with storage options chosen by each team. |
| Website | ||
| Type | Online tool | Online tool |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Linux, macOS, Web, Windows | Browser extension, Web |
| Open source | Not stated | Not stated |
| Language | English | English |
| Alternatives |
Other options to consider
Sites similar to both Dia and draw.io.
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.
Kroki provides one API for generating diagrams from textual descriptions using libraries such as Mermaid, PlantUML, Graphviz, and D2.
PlantText provides an online editor for PlantUML code and generates class, sequence, activity, and state diagrams.
text2diagram creates diagrams and charts from text descriptions, with real-time collaboration and document permissions listed on its page.





