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Free sprite sheet maker · AI animation

Sprite sheet maker: pack your frames free, or animate a character with AI

Drop PNG frames, a whole folder, or a GIF to pack them into a sprite sheet with JSON, right in your browser. It is free and needs no account. No frames yet? Generate the animation from one character image with AI and export it the same way.

Drop your frames to make a sprite sheet

Several PNG, WebP, or JPEG images, a whole folder, or a GIF, processed on this device

Runs in your browser. Your file is not uploaded, and no account is needed.

Transparent four-by-four sprite sheet containing sixteen frames of a running character

Real output

Inspect a real 16-frame sprite sheet before you upload

This project-owned 4 × 4 PNG was sampled from a selected 1.292-second interval in a 4.00-second source video. Each cell is 384 × 384, the playback target is 12 fps, and matching JSON metadata is available on the full example page.

  • 16 transparent frames
  • 4 × 4 grid
  • 1536 × 1536 PNG
  • 384 × 384 per frame
Inspect the full workflow and JSONDownload sample PNG

Sprite sheet workflow

Image, PNG, or video to sprite sheet in four steps

Keep generation, clip editing, frame sampling, and packaging as visible steps so the exported grid reflects the part of the animation you actually want to use.

  1. 1

    Choose a source

    Upload character art when you need to create motion, or import an existing MP4, WebM, or MOV clip.

  2. 2

    Generate or import motion

    Create a video preview from the image, or open supported animation footage directly in the workspace.

  3. 3

    Trim and sample

    Set the useful range, inspect it frame by frame, and choose how many frames should represent the motion.

  4. 4

    Export the package

    Download a sprite sheet with JSON metadata, individual PNG frames, or an engine-ready asset pack.

Start with what you have

One sprite sheet maker, two source workflows

The output workflow is shared, but the first step depends on whether the character still needs motion or the animation already exists.

Start with an image

Upload character art, describe the action, and review an AI-generated motion preview before choosing frames.

Read the image-to-animation workflow

Start with a video

Import supported footage, choose in and out points, and convert the selected interval into game asset files.

Read the video conversion workflow

Frame and layout controls

Decide what goes into the sprite sheet

A sprite sheet generator is most useful when clip selection and export choices remain separate. Review the motion first, then choose the frame count, dimensions, processing, and package formats.

  • Use in and out points to remove unwanted lead-in or recovery footage.
  • Step through the selected range and preview repeating motion as a loop.
  • Choose the output frame count and dimensions before starting the export job.
  • Apply optional color key or matting only when the source background is suitable.
Selected framesSprite grid · PNG + JSON

Export options

Use the files that fit your game pipeline

You can select more than one format for the same export. Check the downloaded files and transparency edges before adding them to a production project.

Sprite sheet + JSON

A packed PNG grid accompanied by JSON metadata that describes the exported frame layout.

PNG sequence ZIP

Individual PNG frames in a ZIP archive when your tools or engine prefer separate images.

Engine packs

Sprite assets and import metadata packaged for Unity, Godot 4, Unreal Paper2D, Cocos Creator, or Construct 3.

Sprite sheet maker questions

Can I make a sprite sheet from my own PNG frames for free?

Yes. Drop the frames, a folder of them, or a GIF into the sprite sheet maker at the top of this page. It runs in your browser, so nothing is uploaded and no account is needed. Reorder the frames, trim and align them, set the columns and spacing, then download the sprite sheet PNG, Aseprite-format JSON, or an animated GIF.

Is this an AI sprite sheet generator?

AnimGen can generate a motion preview from character art, but it does not skip review. You select the useful clip and export settings before the final sprite sheet is created.

Can I turn a character PNG into a sprite sheet?

Yes. Upload a character PNG, generate the motion, and export the selected frames as a sprite sheet. If you already have the frames as separate PNG files, pack them with the free sprite sheet maker at the top of this page instead.

Can I make a sprite sheet from my own video?

Yes. The current web workflow accepts MP4, WebM, and MOV imports, subject to the browser being able to decode the media inside the file.

Does the sprite sheet include JSON metadata?

Yes. The sprite sheet export includes a PNG plus JSON metadata for the frame layout. Separate PNG frames and engine packages are also available.

Can the exported sprites have transparent backgrounds?

Optional color key or matting can process suitable footage during export. Results vary with the source, so inspect fine details, shadows, blur, and edges before production use.

Explore the complete animation workflow

Image to animationCreate and review a motion preview from a character image.Sprite sheet vs PNG sequenceCompare real package size, decoded memory, metadata, and texture limits using the same 96 frames.Video to sprite sheetSee the detailed trimming, sampling, and transparency workflow.Workflow examplesFollow a source-art, review, trim, and export walkthrough.

Make a sprite sheet from your next character animation

Create an account, generate or import motion, select the useful frames, and export the package your game needs.

Start making sprite sheets