From a clip to game frames
Plenty of game animation starts as video: a character rendered in Blender, a clip from an AI video tool, a recording of a Spine or Live2D animation, or an effect made in a particle editor. Engines want sprite sheets. This tool cuts the clip into evenly spaced frames, cleans them up and packs them into a sheet that drops straight into Godot, Unity, Phaser, PixiJS or GameMaker.
Pick the frames
Scrub the source with the slider, then set the start and end from that spot. Choose a frame count, such as 8 for a walk cycle or 12 for an attack, or a number of frames per second. Animated GIFs can use every frame they contain. Click a frame in the strip to leave it out, which helps when a loop has a doubled first and last frame. Drag a box on the source to crop to the character.
Clean background removal
Color key removes one color across the whole frame and fits green or blue screens. Pick the color with the eyedropper or let the tool read it from the edges of the clip. Tolerance sets how far a color may be from the key, and edge softness fades the border so the sprite does not get a hard jagged cut. Spill removal pulls the green tint out of hair and edges. Flat mode only removes the background where it touches the border, so a white shirt survives on a white background. Trim then cuts every frame to the same tight box around the motion, so the character does not jump around in the sheet.
Turn renders into pixel art
Set the size to a small percentage, tick pixel art and cut the colors to 8, 16 or 32. The palette is shared by every frame, so colors do not flicker from frame to frame. The edges become hard alpha that pixel art engines expect.
What you get
| File | Use |
|---|---|
| name_sheet.png + name_sheet.json | A packed sheet and a TexturePacker hash atlas for Phaser, PixiJS, Cocos and most loaders. |
| name_frames.tres | Godot 4 SpriteFrames. Put it next to the sheet and load it into an AnimatedSprite2D. |
| frames/ | Every frame as its own PNG, for Unity, GameMaker or any engine that imports single images. |
Your video stays on your computer
Decoding and processing run in your browser. Nothing is uploaded. MP4 needs a browser that plays H.264, which Chrome, Edge, Safari and Firefox on Windows and macOS all do. WebM and GIF work everywhere.