What is a texture packer?

A texture packer combines many individual images (sprites) into a single sprite sheet, or texture atlas, plus a data file describing where each sprite sits. Games load one atlas instead of hundreds of files, which cuts draw calls and speeds up rendering.

Is the texture packer free and does it require signup?

Yes, it is completely free with no signup. The packing runs entirely in your browser, so your images are never uploaded to a server.

Which game engines does the output work with?

The exported PNG sprite sheet works everywhere, and the JSON atlas is compatible with Phaser, PixiJS, and other engines that read JSON-hash atlases. You can also import the sheet manually into Unity or Godot.

What files do I get when I export?

You get a single packed PNG sprite sheet and a JSON file listing each sprite's name, position, and size, so your engine can slice the atlas back into individual frames.

Can I add padding or use power-of-two dimensions?

Yes. You can set spacing/padding between sprites to avoid texture bleeding, and constrain the output to power-of-two dimensions for engines and GPUs that require it.

Texture Packer works best on a desktop

This is a precision sprite-sheet tool with a live canvas, drag-and-drop and side panels — it needs a wider screen to work well. Please open it on a laptop or desktop.

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100% free · runs in your browser · no signup

Sprites 0

Private — images never leave your browser

Drop images here

PNG, JPG, WebP, GIF · Max 10MB

Add images to start
building your sprite sheet

More game-dev tools

Bitmap Font Color Palette Audio Sprite Physics Editor

Build your sprite sheet

Add a few images and generate a packed texture atlas with JSON — right in your browser.

1 Add images
2 Adjust padding & format
3 Generate & export

Packing sprites…

Output

File Name

Minify JSON

Strip file extensions

Basic Settings

Atlas Size

Size Constraint

Padding 2px

Scale

Format

Advanced Settings

Trim transparent pixels

Extrude / bleed (px)

Allow rotation

Force square

Packing Method

Sort Sprites By

Multi-pack (overflow pages)

Selected Sprite

Name—

Source—

Packed—

Position—

RotatedNo

Recommended resources

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Humble Bundle — Game Dev Assets

Discounted asset packs, engines and courses for indie developers.

GameDev Market

Royalty-free 2D, 3D, GUI and audio assets for your next game.

Texture Packer works best on a desktop

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