Structurizr AlternativesDiagram Editors and other similar apps like Structurizr

Structurizr is described as 'Software architecture diagramming tool' and is a Diagram Editor in the development category. There are more than 10 alternatives to Structurizr for a variety of platforms, including Web-based, Windows, Mac, Linux and Self-Hosted apps. The best Structurizr alternative is draw.io, which is both free and Open Source. Other great apps like Structurizr are Excalidraw, Dia, Miro and PlantUML.

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Structurizr alternatives page was last updated Aug 1, 2026

draw.io
1048 likes
Feature-rich diagram editor offering privacy-focused, ad-free experience with real-time collaboration, offline usage, dark mode, and cloud storage support. No registration required and compatible with various diagram formats, it excels in simplicity by not tracking user data.
154 draw.io alternatives
Cost / License
Free
Open Source (Apache-2.0)
Application types
Diagram Editor
Mind Mapping
Origin
United Kingdom
Platforms
Mac
Windows
Linux
Online
Chrome OS
Notion
Self-Hosted
Nextcloud
Microsoft SharePoint
Flathub
Microsoft OneDrive
PortableApps.com
Google Drive
Google Docs
Microsoft Teams
Google Slides
Flatpak
Google Sheets
+9
Is draw.io a good alternative to Structurizr?
Excalidraw
119 likes
Excalidraw is an open-source whiteboard tool that lets you easily sketch diagrams that have a hand-drawn feel to them. Available directly online as a web app and also through CodeSandbox to easily see how the code works, and the app is available for self-hosting.
105 Excalidraw alternatives
Cost / License
Freemium
Open Source (MIT)
Application types
Diagram Editor
Mind Mapping
Origin
Czechia
EU
Platforms
Online
Self-Hosted
Cloudron
+1
Is Excalidraw a good alternative to Structurizr?
Dia
456 likes
Open-source diagram editor supporting Linux, Windows, Unix, and Mac OS X, with features for constructing entity relationship, UML, flowchart, and network diagrams, customizable with XML-defined shapes, extensibility, and a GTK+-based graphical user interface.
94 Dia alternatives
Cost / License
Free
Open Source (GPL-2.0)
Application types
Diagram Editor
Vector Graphic
Origin
United States
Platforms
Mac
Windows
Linux
PortableApps.com
FreeBSD
Xfce
DragonFly BSD
NetBSD
OpenBSD
Is Dia a good alternative to Structurizr?
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Miro
A secure collaboration platform for distributed teams offering real-time and asynchronous capabilities, infinite canvas, integrations with major tools like Google Suite, Slack, and Dropbox, and features for enhanced product devel...

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Miro
128 likes
A secure collaboration platform for distributed teams offering real-time and asynchronous capabilities, infinite canvas, integrations with major tools like Google Suite, Slack, and Dropbox, and features for enhanced product development and design workflows.
138 Miro alternatives
Cost / License
Freemium
Proprietary
Application types
Mind Mapping
Diagram Editor
Origin
United States
Platforms
Mac
Windows
Online
Android
iPhone
iPad
Software as a Service (SaaS)
+9
Is Miro a good alternative to Structurizr?
PlantUML
121 likes
PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams. The generator can be run anywhere within JVM and integrated with various application such as wiki, text editor, IDE, programming language, documentation generator, and others.
121 PlantUML alternatives
Cost / License
Free
Open Source
Application types
Diagram Editor
Mind Mapping
Origin
France
EU
Platforms
Mac
Windows
Linux
Online
Android
Chrome OS
Is PlantUML a good alternative to Structurizr?
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.
31 Mermaid alternatives
Cost / License
Free
Open Source (MIT)
Application types
Diagram Editor
UML Modeling
Origin
Sweden
EU
Platforms
Mac
Windows
Linux
Online
JavaScript
Node.JS
Self-Hosted
Cloudron
Is Mermaid a good alternative to Structurizr?
DiagramDeck
6 likes
Cloud-based diagram creation platform hosting draw.io diagrams, featuring real-time collaboration in a shared workspace. Supports flowcharts, cloud architecture (AWS, Azure, GCP), UML, ER, network diagrams, seamless import/export, and modern, intuitive interface.
Cost / License
Free
Proprietary
Application types
Diagram Editor
UML Modeling
Platforms
Online
Is DiagramDeck a good alternative to Structurizr?
Kroki
8 likes
Creates diagrams from textual descriptions! It provides a unified API with support for BlockDiag, BPMN, Bytefield, C4 (with PlantUML), Ditaa, Erd, GraphViz, Mermaid, Nomnoml, PlantUML, SvgBob, UMLet, Vega, Vega-Lite, WaveDrom.
Cost / License
Free
Open Source (MIT)
Application types
Diagram Editor
Mind Mapping
Platforms
Online
Self-Hosted
Is Kroki a good alternative to Structurizr?
nomnoml
1 like
A tool for drawing UML diagrams based on a simple syntax.
Cost / License
Free
Open Source (MIT)
Application type
UML Modeling
Origin
Sweden
EU
Platforms
Online
Is nomnoml a good alternative to Structurizr?
Diagramly
Like
Diagramly is an innovative tool that uses AI to convert text descriptions or images into editable diagram code. It supports popular formats like Mermaid and ZenUML, allowing users to easily create and maintain professional diagrams.
Cost / License
Freemium
Proprietary
Application types
Diagram Editor
UML Modeling
Origin
United Kingdom
Platforms
Online
Is Diagramly a good alternative to Structurizr?
Y
Y
yUML
2 likes
to model applications.
Cost / License
Free
Proprietary
Application type
UML Modeling
Origin
United Kingdom
Platforms
Online
Y
Is yUML a good alternative to Structurizr?
Beauty Diagram
1 like
Mermaid, PlantUML, and drawio diagrams that don't look auto-generated.
Cost / License
Freemium
Proprietary
Application types
Diagram Editor
Mind Mapping
Platforms
Online
+4
Is Beauty Diagram a good alternative to Structurizr?