KeyCastr

KeyCastr is an open-source Mac app designed to enhance screencasts by showing your keyboard keystrokes and mouse clicks on screen. Ideal for tutorials, demos, or presentations, it lets viewers clearly see your input actions. Customize the display—adjust size, color, position, and opacity to match your content. Lightweight, it runs in the background without draining resources, supporting various keyboard layouts and special keys (modifiers, function keys). Ad-free and completely free under the MIT license, it’s perfect for content creators, educators, or anyone sharing their screen who wants input visibility.