NClass Alternatives & Competitors

yEd is a free desktop application to quickly create, import, edit, and automatically arrange diagrams. It runs on Windows, Mac OS X, and Unix/Linux.

Key yEd features:

User-Friendly Interface Versatile Diagram Types Automatic Layouts Cross-Platform

Online diagramming application.

Key draw.io features:

Free User-Friendly Interface Collaboration Integrations

Open Source

RealityMAX is the full-stack, AI-powered product visualization platform, 100% online. Turn any image into 3D in seconds, enhance your visuals with AI, and download your work or share it as interactive 3D or AR in a snap, without a line of code.

Key RealityMAX features:

Image to 3D AI image enhancer Upload multiple 3D models Edit 3D model materials

Visit website freemium $20 / Monthly (Starter with up to 50 scenes available)

LucidChart is the missing link in online productivity suites. LucidChart allows users to create, collaborate on, and publish attractive flowcharts and other diagrams from a web browser.

Key LucidChart features:

User-Friendly Interface Collaboration Features Integration Capabilities Template Library

OmniGraffle is for creating precise graphics like website wireframes, an electrical system designs, or mapping out software class.

Key OmniGraffle features:

User-friendly Interface Advanced Diagram Tools Cross-Platform Support Integration Capabilities

Dia is a GTK+ based diagram creation program for GNU/Linux, MacOS X, Unix, and Windows, and is released under the GPL license.

Key Dia features:

Open Source Cross-Platform Versatile Diagram Types Customizable Toolset

UMLGraph is a professional automated drawing tool that allows the designers the declarative specification and drawing of UML class and sequence diagram.

Key UMLGraph features:

Automated Diagrams Integration with Javadoc Text-Based Configuration Extensible and Customizable

PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams.

Key PlantUML features:

Simple Syntax Quick Diagram Creation Version Control Friendly Integrations

Open Source

StarUML.

Key StarUML features:

User-Friendly Interface Cross-Platform Support Extensibility Wide Range of Diagram Types

UMLet - Free UML Tool for Fast UML Diagrams.

Key UMLet features:

Simplicity Open Source Quick Diagramming Lightweight

ArgoUML, free and safe download. ArgoUML latest version: Open-source diagramming application for personal computers. ArgoUML is a program that allows users to create complex and professional diagrams.

Key CollabNet features:

Comprehensive ALM Suite Scalability Collaboration Features Support for Multiple Version Control Systems

Visualize, design, innovate. The ultimate diagramming and modeling suite for UML, ERD, BPMN, flowcharting and data architecture. Elevate your ideas to new heights.

Key Software Ideas Modeler features:

User-Friendly Interface Free Trial Templates Search and Filtering

freemium €59 / One-off (Standard Edition)

Umbrello UML Modeller is a Unified Modelling Language diagram programme for KDE.

Key Umbrello features:

Open Source UML Support Integration with KDE Cross-Platform

Diagram Designer.

Key Diagram Designer features:

Freeware Lightweight User-Friendly Interface Support for Multiple Diagram Types