Sprite Sheet Grid Calculator
Calculate pixel offsets and CSS background-position values for every sprite in your sheet.
Sheet Dimensions
Sprite Sheet Optimization
A sprite sheet (also called a texture atlas) packs multiple game frames or UI images into a single image file. The browser or game engine loads one file instead of many, reducing HTTP requests and improving performance.
Why margins matter: When scaling or filtering sprites, neighboring pixels bleed into each other — this is called texture bleeding or seaming. Adding 1–2 px of transparent padding between sprites prevents this artifact in WebGL and CSS rendering.
CSS background-position uses negative values to shift the sprite sheet so the correct frame is visible inside the element. For example, background-position: -64px -32px shifts the sheet 64 px left and 32 px up, revealing the sprite at column 2, row 1.
For animation, use CSS steps() with @keyframes to step through frames rather than smoothly interpolating — smooth interpolation would show blurred frames between positions.