FREE · IN YOUR BROWSER · NOTHING UPLOADED

Make looping game sprite animations

Two free browser tools for 2D game art. Pull a clean looping animation out of an AI-generated video, or slice and align a sprite sheet into game-ready frames — then export PNG, GIF, or APNG. Everything runs locally; your art never leaves your device.

VIDEO → FRAMES

Frame Extractor

Pick a loop range in any MP4/WebM/MOV and export every frame as a PNG sequence, a looping GIF, or a looping APNG. Built for turning short AI videos into game animation frames.

Open the frame extractor → SHEET → SPRITES

Sprite Slicer

Cut a sprite sheet on a grid, remove a solid / green-screen background, auto-trim transparent padding, and normalize every frame to one size with bottom or source alignment.

Open the sprite slicer →

How they work together

AI video (~10s) → Extract loop frames → Remove background & align → Game-ready sprite animation

Guides & tutorials

FRAME EXTRACTOR · VIDEO → FRAMES

AI video → game sprites the full workflow Character image → video image-to-video, done right Seamless sprite loops find the loop, kill the seam Fix AI video flicker color & shimmer Best AI video for sprites models compared Video → PNG sequence export every frame MP4 → GIF / APNG looping, no upload GIF vs APNG how to deliver loops Remove the background chroma key Sprite sheets 101 the basics

SPRITE SLICER · SHEET → SPRITES

How to slice a sprite sheet grid, gaps, offsets Cleaning up AI pixel art grid snap & palette Stop the foot-slide pivots & alignment Normalizing frame sizes consistent cells Import into Unity step by step Import into Godot 4 step by step Import into GameMaker step by step Sheet vs individual frames which to ship Power-of-two & atlas sizing engine-friendly

Why these tools exist

loopsprite started as two small utilities I built for my own 2D game. I generate a character as a still image, animate it into a short AI video clip, and then need those frames as clean, game-ready sprites — pulling frames, finding a loop, cutting the background, lining everything up. Doing it by hand got repetitive enough that a dedicated browser tool was worth building, so I made one and left it free.

Everything stays on your device

Neither tool uploads your files. Video decoding, frame extraction, slicing, and background removal all happen locally in the page, so unreleased art never leaves your machine. That also keeps exports fast, and there is no account to create.

Who it's for

Indie and hobby game developers working in Unity, Godot, GameMaker, Construct, Phaser, or any 2D engine; anyone turning AI video into sprite animations; and artists who just need to slice a sheet or pull frames out of a clip without installing anything.

Frequently asked questions

Are the tools really free?
Yes — both the Frame Extractor and the Sprite Slicer are free, with no signup. A couple of small ads are the only thing that keeps the site running.

Do my files get uploaded?
No. Everything runs in your browser; your video and images never leave your device.

What can I export?
From the Frame Extractor: a numbered PNG sequence, a looping GIF, or a looping APNG. From the Sprite Slicer: individual frame PNGs, sliced and aligned from a sheet.

Which engines does this work with?
Any 2D engine — Unity, Godot, GameMaker, Construct, Phaser, and more. The output is standard PNG / GIF / APNG, and there are step-by-step import guides above.

Does it work on mobile?
It runs in mobile browsers, but both tools are built for a desktop screen — a keyboard and a larger canvas make the frame and grid work much easier.