Kroki provides one API for generating diagrams from textual descriptions using libraries such as Mermaid, PlantUML, Graphviz, and D2.
Mermaid vs Graphviz
How do Mermaid and Graphviz compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | Mermaid | Graphviz |
|---|---|---|
| What it is | Mermaid generates diagrams such as flowcharts and sequence diagrams from text using syntax similar to Markdown. | Graphviz creates diagrams from graph descriptions and provides open-source software for visualizing structural information. |
| Website | ||
| Type | Open-source project | Online tool |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Not recorded | Web |
| Open source | Yes | Not stated |
| Language | English | English |
| Alternatives |
Other options to consider
Sites similar to both Mermaid and Graphviz.
Mermaid Live Editor creates charts and diagrams from text using Mermaid’s markdown-like syntax in a browser.
Swimlanes.io creates sequence diagrams from text in a browser and lets users download diagrams or share them through links.
PlantUML generates UML and other diagrams from textual descriptions and exports results in formats including PNG, SVG, and PDF.
DiagramGPT generates diagrams from text prompts, with the project page describing diagram workflows for teams.
UMLet provides free, open source UML drawing with a simple interface for making diagrams, including sequence and activity diagrams.







