Placeholders is a free WordPress plugin that adds 14 customizable Gutenberg blocks for standard advertising sizes. It helps designers and developers wireframe, prototype, and reserve space for future ad placements in WordPress sites, supporting responsive layouts and minimal styling.
In the UI/UX & prototyping space, Placeholders takes a focused approach. Quickly adding and visualizing standard ad placements during WordPress site design and prototyping. It is built as a B2B product for wordPress site designers and developers. Placeholders is free to use. It runs on the web.
It is developed by Jake Spurlock, and the product first shipped in 2025. PulseGate's similarity index finds few close equivalents — Placeholders occupies a relatively distinct niche. Key capabilities include customizable blocks, ad size presets, and wireframing support. The interface is available in English and Latvian.
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