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Pencil
pencil · v3.1.1 • deprecated
5
6.0
GUI prototyping tool
brew install --cask pencil 57
30-day installs
97
90-day installs
274
365-day installs
Install trend
Trust Score 5/10
✓ Open source (GPL-2.0) +3
✗ Active development +0
✓ Licensed +1
✗ No auto-updates +0
✗ Deprecated +0
✓ Established (>1yr) +1
✗ Low installs +0
Review
Mar 11, 2026Pencil is a free, open-source GUI prototyping tool that allows users to create diagrams and interface designs. It offers a user-friendly interface and a wide range of features for designing and prototyping, making it ideal for designers and developers.
Pencil is a tool for creating and prototyping GUI designs and diagrams.
Maturity: The project is established with a large GitHub presence, but it has a high number of open issues, indicating potential maintenance challenges.
Community: While Pencil has been mentioned on Hacker News, the discussions are not directly related to the tool itself. There is limited community discussion on Reddit.
Pros
- + Free and open-source
- + Cross-platform support
- + Rich feature set for design and prototyping
Cons
- - Lack of auto-updates
- - High number of open issues on GitHub
Community Mentions
hackernews
Mar 2020 Creating a Pencil Effect in SVG
hackernews
hackernews
Oct 2017 Pencil and Paper Games
hackernews
hackernews
Nov 2013 Pencil
Positive sentiment Negative sentiment Neutral / unknown