CatBar is a WordPress plugin designed to modify the layout of the WordPress admin interface by replacing the default vertical sidebar with a collapsible horizontal bar at the top of the screen. This adjustment aims to maximize available content space while preserving access to all navigation elements. CatBar enables users to open and close the menu using a hamburger icon in the admin toolbar, contributing to a more streamlined workspace.
The plugin is fully responsive, functioning across desktop, tablet, and mobile devices. It operates both in the WordPress admin backend and in the frontend admin bar for logged-in users. CatBar is implemented using pure CSS and JavaScript, with no dependency on jQuery, which helps keep it lightweight.
CatBar is available for free and is intended for WordPress users who want to optimize their admin interface for better usability and space efficiency. After activation, the standard left-side admin menu is moved to a collapsible horizontal bar beneath the admin toolbar, and users can interact with the menu via the hamburger icon or a close button within the panel.
In the UI/UX & prototyping space, CatBar takes a focused approach. It focuses on maximizing screen space in the WordPress admin by moving the sidebar to a collapsible top bar. It is built as a B2B product for wordPress administrators, site managers. The product is available for free. It runs on the web.
Behind CatBar is winner1, and the product first shipped in 2026. Key capabilities include collapsible top bar, responsive design, and sidebar replacement. The interface is available in Bulgarian and English.
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CatBar — Collapsible Admin Top Bar verified by the PulseGate indexer
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