HappyVisual is a free visual modification client for Minecraft, with versions for 1.21.4 and 1.16.5. Its website presents version 2.0.0 for Minecraft 1.21.4 and highlights a customizable, liquid-glass-style interface, with no subscriptions. Players can explore an interactive preview of the in-game menu before downloading.

The client brings together 95 features across visual effects, HUD elements, gameplay helpers, settings, and cosmetics. HUD options display information such as coordinates, armor durability, active effects, inventory, key presses, target details, friends, and server event timers. Visual features include custom crosshairs, fog and hand effects, hit particles, trails, zoom, and animations. Additional tools offer command shortcuts, automatic sprinting and healing, friend markers, region boundaries, and notifications for selected in-game events and items.

Players can customize colors, themes, particles, and individual feature settings, arrange HUD elements on screen, and save or load configurations. HappyVisual also offers cosmetic items such as wings, capes, hats, and pets, along with emotes and a radial menu.