Gaphor

Development

Open-source softwareEditorial overview
A CLOSER LOOK

What is Gaphor?

Gaphor is a modeling application for describing software and system architecture using several established diagramming languages. It includes UML modeling, sysML diagrams, and C4 architecture models.

UML modeling

SysML diagrams

C4 architecture models

Is it a good fit?

Best suited to

Software architects maintaining structured models of a system

Before you choose

Maintaining alignment with the real system requires ongoing editorial work. A model does not replace implementation tests or operational validation.

Editorial assessment based on the provider’s published information. Our method

Know what you're signing up for.

The application is distributed under Apache-2.0. The listed desktop or mobile software can be used on an ongoing basis without a software subscription. Maintaining alignment with the real system requires ongoing editorial work.

The $0 price applies to the listed open source application. Maintaining alignment with the real system requires ongoing editorial work.

Check current official pricing

The useful parts. The trade-offs.

Why consider it

Brings UML modeling and sysML diagrams into the same workflow.

Start with the system boundary, add the components and relationships that matter, and review the model with implementers before expanding it into lower-level diagrams.

What to keep in mind

Maintaining alignment with the real system requires ongoing editorial work.

A model does not replace implementation tests or operational validation.

How to use it well

Gaphor fits software architects maintaining structured models of a system. Start with the system boundary, add the components and relationships that matter, and review the model with implementers before expanding it into lower-level diagrams.

Maintaining alignment with the real system requires ongoing editorial work. A model does not replace implementation tests or operational validation. Keep working files under version control so subsequent changes can be reviewed and reversed.

A few things you might be wondering.

Is Gaphor free?

The application is distributed under Apache-2.0. The listed desktop or mobile software can be used on an ongoing basis without a software subscription. Maintaining alignment with the real system requires ongoing editorial work.

Can I use Gaphor for UML modeling?

Yes. Gaphor includes UML modeling. Start with the system boundary, add the components and relationships that matter, and review the model with implementers before expanding it into lower-level diagrams.

Will a model automatically stay synchronized with the real system?

Maintaining alignment with the real system requires ongoing editorial work.

Where can I check the latest prices?

Use the provider link on this page. Billing period, location, team size, promotions, taxes, and optional extras may affect the amount you pay.

How should I compare this tool with alternatives?

Choose tools for the same task, then compare their feature limits, platform support, and total cost for your team. The Compare button helps you keep a shortlist.

Are the user reviews moderated?

Yes. New reviews are submitted for moderation. We show published user reviews separately from the editorial overview and never assign a default user rating.

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