Pencil4.0.0

Sketching and GUI prototyping/wireframing tool

LinuxPhoto & GraphicsOpen source

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About

Pencil lets you sketch diagrams and GUI wireframes, turning rough ideas into visual plans that can be discussed before implementation. As a Photo & Graphics program, it represents concepts, structures, and processes visually, while also helping arrange the appearance of a graphical user interface. A user can use those prototypes to explore an interface before it is built and to communicate its intended layout to other people.

Its diagramming features suit system maps, process explanations, and other visual representations of how things relate. Its GUI-prototyping capabilities are useful for planning screen appearance and interface arrangement without implementing the finished software. The program is intended for Linux users of any experience level rather than only a specialized professional audience, making it suitable for early product planning, interface discussions, and explaining visual ideas.

Pencil is an open-source application published by Alan Pope. It is described as available for all platforms, while the Linux release requires Linux with snapd and runs on x86_64, also called amd64, hardware. The current stable version is 4.0.0, whose changes include stability fixes and many new features.

Requires Linux + snapd · Architecture: x86_64 (amd64)

Details

PlatformLinux
CategoryPhoto & Graphics
LicenseOpen source
PricingFree
Package IDpencil
AuthorAlan Pope
Latest versionv4.0.0
File typeSNAP
Minimum OSLinux + snapd
Architecturex86_64 (amd64)
File size103.6 MB
Published10/25/2026

SHA-256

Version history

VersionSizePublishedScan
v3.1.1
SHA-256
99.8 MB9/15/2026CleanDownload

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