System Designer Alternatives & Competitors

SEQO generates UML sequence diagrams from a simple text.

Key SEQO features:

User-Friendly Interface Real-Time Collaboration Cloud Integration Customizable Features

Violet is a UML editor with these benefits: Very easy to learn and use. Draws nice-looking diagrams.

Key Violet UML Editor features:

User-Friendly Interface Cross-Platform Compatibility Open Source Support for Multiple UML Diagrams

As the only API powered by the Prince HTML-to-PDF engine, DocRaptor provides the best support for complex PDFs with powerful support for headers, page breaks, page numbers, flexbox, watermarks, accessible PDFs, and much more.

Key DocRaptor features:

Ease of Use Customizable High-Quality Rendering Compliance

Try for free paid Free Trial $15.0 / Monthly (125+ Documents)

UModel is a web-based tool that enables developers to use UML diagrams to express their software requirements.

Key UModel features:

User-Friendly Interface Comprehensive UML Support Integration with Altova Suite Code Generation

The Topcoder home page has received a slick new makeover that lets new customers quckly login, discover the power of our community, and launch challenges.

Key Topcoder features:

Wide Range of Competitions Global Community Monetary Rewards Skill Development

WhiteStarUML is a fork of StarUML with an intent to revive its Delphi code base by updating code to...

Key WhiteStarUML features:

Open Source Platform Compatibility User-Friendly Interface Extensibility

Yuml.me is a legit modeling tool that comes with the strategic measure that let teams and individual create diagram more quickly via simply typing plain text.

Key Yuml.me features:

Ease of Use Text-Based Input Integration Quick Sharing

Eclipse Papyrus is an industrial-grade open source Model-Based Engineering tool. Eclipse Papyrus has notably been used successfuly in industrial projects and is the base platform for several industrial modeling tools.

Key Eclipse Papyrus features:

Open Source UML Support Integration with Eclipse Customizable Profiles

Chrons Web Modeler, now named Olympos, is a collaboration tool that you can use to create UML models and diagrams with features like document, report, and code generator.

Key Chrons Web Modeler features:

User-Friendly Interface Collaboration Features Cross-Platform Accessibility Integration Capabilities

A Powerful idea processor.It's Open Source and Freeware.

Key Dynamic Draw features:

Free to Use User-Friendly Interface Support for Flowchart and Diagram Creation Customizable Features

Online diagramming application.

Key draw.io features:

Free User-Friendly Interface Collaboration Integrations

Open Source

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

The ObjectAid UML Explorer is an agile and lightweight code visualization tool for the Eclipse IDE.

Key ObjectAid features:

Ease of Use Real-time Synchronization IntelliJ Integration Focused Diagrams

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