Visual design diffs in GitHub PRs. Before/after screenshots for every .pen design change. Free, open-source GitHub Action.
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Updated
Feb 26, 2026 - TypeScript
Visual design diffs in GitHub PRs. Before/after screenshots for every .pen design change. Free, open-source GitHub Action.
Bidirectional sync between Pencil.dev designs and frontend code via Claude Code
Add a description, image, and links to the pen-files topic page so that developers can more easily learn about it.
To associate your repository with the pen-files topic, visit your repo's landing page and select "manage topics."