Wireframe Box is a Firefox browser extension for sketching dashed wireframe boxes with adjustable dimensions and stroke settings. It is intended for users who need a lightweight way to mark up or prototype layouts in the browser.
Wireframe Box sits in PulseGate's Browser DevTools & extensions category. It focuses on creating adjustable dashed wireframe boxes directly in the Firefox browser. It is built as a consumer product for firefox users who create wireframes or annotate web pages. Wireframe Box is free to use. It ships for the web and embeddable surfaces.
Samuel T. Kellar builds and maintains Wireframe Box, and it first shipped in 2026. Among its 5 catalogued features are dashed wireframe boxes, adjustable size, and adjustable stroke. The interface is available in 32 languages, including Czech, German, and Greek.
Summary written by a language model from the project’s public pages.
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