Image to Sprite Converter

This tool aggregates multiple input images into a single sprite atlas and provides ready-to-use style rules. It supports grid, horizontal, and vertical layouts, optional padding, and retina-ready outputs. Conceptually, each input image is assigned a frame in the atlas with coordinates and size metadata that are consumed by CSS or code to render the correct portion of the sprite. The tool outputs a sprite image (PNG) plus CSS classes that map each input image to a background-position in the atlas. Advanced options include trimming transparent margins, selecting per-frame dimensions, and generating a JSON atlas for programmatic lookup. Typical users are frontend developers organizing an icon set or UI sprites, game developers composing tile assets, and designers shipping icon packs for web apps. Unique value comes from automated layout selection, deterministic packing, and optional atlas metadata that aligns with common web and game engines. Core features include grid/horizontal/vertical layouts, per-frame padding, auto-detection of cell size, retina scaling support, and CSS/JSON output. Use cases cover site icon sprites, toolbar icon packs, and UI elements that benefit from a single network request. The tool emphasizes correctness and reproducibility: given the same inputs and settings, the atlas and CSS remain identical across builds, aiding caching and versioning.