HappyHorse is a browser-based AI video generator that transforms text prompts and reference images into short, publish-ready videos. It supports both text-to-video and image-to-video workflows, giving users control over aspect ratio, resolution, and clip length. The platform is aimed at practical content production, helping users create product videos, social clips, campaign visuals, and storytelling assets faster. Its focus is on speed, motion consistency, and simple creative control rather than technical complexity.