Sprite Sheet Maker

Build a usable animation asset

Sprite Sheet Generator from Video

A sprite sheet maker places a sequence of images into one texture, making it easier to organize animation assets. Open a video or GIF, choose your frame settings, and inspect the resulting atlas. This sprite sheet maker produces real image files and coordinates rather than generating new character poses from a written prompt.

For video, the sprite sheet maker samples at your chosen time interval. For GIF, it decodes the animation and can take every selected number of frames. The maximum frame count limits the output deliberately. Cycles are easier to review, so start with a small walk, gesture, product turn, or interface animation.

The sprite sheet maker keeps cells uniform and arranges them in reading order, left to right and then downward. You control columns, rows, cell size, and padding. Empty cells can remain when your grid is larger than the sequence; the JSON lists only actual frames, so your importer should not treat unused space as artwork.

Control the sampling

Video to Sprite Sheet

Set a start time and interval in the sprite sheet maker to control which moments become sprites. A short interval records smaller changes; a longer interval creates larger jumps. The sprite sheet maker rejects a range that extends beyond the video instead of quietly repeating the final image to fill the requested grid.

Choose the cell long edge before building with the sprite sheet maker. Smaller cells reduce texture size, while larger cells preserve more source detail. The original aspect ratio stays intact and images are not enlarged beyond their decoded size. Match the cell dimensions to the scale at which the animation will actually appear.

Padding in the sprite sheet maker leaves transparent space around each cell. This can help separate frames, but it is not edge extrusion and does not guarantee freedom from texture bleeding with every filtering mode. Check your engine’s sampling settings, especially if you use mipmaps or scale the sprite far below its native size.

Bring the sheet to the browser

CSS Sprite Generator

The sprite sheet maker includes a CSS file alongside the PNG and JSON. Its background positions match the generated coordinates, including row changes and padding. This makes the sprite sheet maker useful for a small web animation without manually measuring every cell or writing an offset for each picture from scratch.

The CSS example from the sprite sheet maker uses discrete steps so frames change cleanly instead of sliding across the texture. GIF delays influence the animation timing; a minimum interval is applied in CSS for zero-delay frames, while JSON retains the original values. Review the animation in your own browser before shipping it.

Keep sprites.css beside sprites.png or update the image path when you move the files. The sprite sheet maker also includes a reduced-motion rule that holds the first frame. Treat the exported styles as a starting point: choose your own class name, activation behavior, loop count, and accessible alternative for the surrounding interface.

Coordinates you can inspect

Sprite Sheets for Unity / Godot

Use the sprite sheet maker when you want a consistent grid for a game animation. Import the PNG into your engine and configure cell slicing with the exported dimensions. The sprite sheet maker does not create a Unity package or Godot resource automatically; engine import settings remain a separate, explicit step.

The JSON from the sprite sheet maker records each rectangle, filename, source time, and duration in milliseconds. Coordinates use a top-left origin. Check your importer’s expected coordinate system and field names before writing an adapter. A transparent, documented layout is more useful than claiming that one metadata file works unchanged with every engine.

After importing, review the first and last poses together. The sprite sheet maker preserves selected imagery, but it cannot make an abrupt loop seamless or remove a video background. Prepare clean source artwork, inspect the cycle at game speed, and use your engine’s filtering and pixel settings to match the intended visual style.

Check the sprite sheet maker output at scale before integration. Keep your source and settings with the export so another sprite sheet maker pass can reproduce the layout when artwork changes. Review the downloaded atlas before replacing a texture.