Mermaid Studio AlternativesDiagram Editors & UML Modeling Tools like Mermaid Studio

Apps similar to Mermaid Studio include Mermaid, which is free and open source. Other options are reladraw and FlowViz. In total there are three Diagram Editors like Mermaid Studio for Mac, Windows, Linux, the web and self-hosting.

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Mermaid Studio alternatives page was last updated Oct 23, 2026

Mermaid
35 likes
Ever wanted to simplify documentation and avoid heavy tools like Visio when explaining your code? This is why mermaid was born, a simple markdown-like script language for generating flowcharts, Gantt charts and sequence diagrams from text via JavaScript.
38 Mermaid alternatives
Cost / License
Free
Open Source (MIT)
Application typeApplication types
Diagram Editor
UML Modeling
Origin
Sweden
EU
Since
Since 2016
Platforms
Mac
Windows
Linux
Online
JavaScript
Node.JS
Self-Hosted
Cloudron
Sweden
EU
Good alternative?Is Mermaid a good alternative to Mermaid Studio?
reladraw
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reladraw is a text language for diagrams where you say where things go.
Cost / License
Free
Open Source (Apache-2.0)
Application type
Diagram Editor
Since
New
Platforms
Self-Hosted
JavaScript
Typescript
npm
Mac
Windows
Linux
Good alternative?Is reladraw a good alternative to Mermaid Studio?
FlowViz
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FlowViz is a free Mermaid diagram editor that runs in your browser. Write Mermaid syntax and see the diagram render as you type, or edit flowcharts directly on the canvas. Change a node's label, shape or colour, and the Mermaid source updates to match.
Cost / License
Free
Proprietary
Application typeApplication types
Diagram Editor
UML Modeling
Origin
Australia
Since
New
Platforms
Online
Australia
Good alternative?Is FlowViz a good alternative to Mermaid Studio?

3 of 3 Mermaid Studio alternatives