Gaphor

Automated

A free, open-source UML, SysML, RAAML, and C4 modeling application.

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Active plans

Total changes

Last change

Jul 15, 2026

Price trend

no history

What we know about Gaphor’s pricing

Stable

Changes in 12 months

Cadence

Multiple changes per day

Direction

New plan recently added

Category position

—

Not enough peers tracked yet

Current pricing

Free

one time

Free

monthly$0/mo($0/forever)
one-time$0 one-time(Free / Open Source (Apache 2))

UML, SysML, RAAML, and C4 modeling
Multi-platform: Windows, macOS, Linux
Open Source, Apache 2 license
Fully-compliant UML 2 data model
Extensible via plug-ins
Class, Interaction, and State Machine diagrams

Price history

Last 2 changes

Date	Plan	Change	Old	New	Δ%
Jul 15, 2026	Free	new plan	—	$0	—
Jul 15, 2026	Free	new plan	—	$0	—

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