SpritePacker
SpritePacker: A free browser toolkit for sprite atlases, metadata exports, and GIF animation. Ranked #16 of 34 in Sprite Sheet Maker Software by our editors (7.0/10); pricing: Free plan; best for free browser atlas packing with GIF animation tools.
At a glance
- Editor score7.0 / 10
- PricingFree plan
- Best forFree browser atlas packing with GIF animation tools
- Free planYes
- Paid fromFree
- Sprite trimmingYes
- Facts checked14 Nov 2026
Where it wins
- Packs frames with MaxRects and trims transparent borders while preserving offsets
- Exports PNG atlases with JSON, XML, CSS, SCSS, or metadata files
- Converts GIFs to frames and previews or exports animations with frame timing
Where it doesn't
- Does not support rotation packing
- Does not create multiple atlases
- Browser-based workflow may not suit developers seeking a desktop app
Our verdict on SpritePacker
SpritePacker is a browser-based toolkit for 2D game developers who need to pack image frames into sprite atlases and export coordinate metadata. It runs packing, trimming, and export locally in the browser, and the site states that images are not uploaded. Inputs include PNG, JPG, and WebP, with GIF-to-frame conversion and animated GIF export for projects that use frame-based animation.
The workflow covers more than basic packing: MaxRects arranges frames, while trimming removes transparent borders and preserves original offsets. Users can set padding, edge extrusion, export scale, and cell alignment. Output includes PNG atlases and JSON, XML, CSS, SCSS, or metadata files. Animation controls include per-frame timing, onion skinning, looping, and speed adjustment. This makes SpritePacker a practical fit for solo and small teams that want atlas preparation and lightweight animation tools in one browser workflow.
The free plan requires no signup and has no paid tier or daily export quota. Export guidance and presets target Unity, Godot, Phaser, PixiJS, GameMaker, Friday Night Funkin’, and HaxeFlixel, making it relevant across several 2D game ecosystems. Its limits are meaningful for more specialized workflows: it does not support rotation packing or multiple atlases. Choose it for free, local-in-browser packing with metadata and GIF support; consider another tool if rotated frames or multipage atlas output are required.
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SpritePacker pricing
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SpritePacker fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Sprite trimming | Yes |
| Rotation packing | No |
| Multiple atlas output | No |
| Animation support | Yes |
| Metadata export | Yes |
| Maximum atlas size | 16384 px |
| Deployment | Cloud |
| Platforms | Web |
| Built for | Solo, Small business (editorial estimate) |
| Integrations | 7 integrations: Unity, Godot, Phaser, PixiJS, GameMaker, Friday Night Funkin’ … |
| Pricing | Free plan (source) |
| Website | spritepacker.app |
| Facts checked | 14 Nov 2026 |
SpritePacker integrations
SpritePacker lists 7 integrations on its own site.
- Unity
- Godot
- Phaser
- PixiJS
- GameMaker
- Friday Night Funkin’
- HaxeFlixel
Alternatives to SpritePacker
- AsepriteA focused desktop editor for pixel animation, tilemaps, and sprite-sheet export.9.3
- LibreSpriteA free, open-source pixel-art editor with animation and sprite-sheet export.8.4
- Atlas PackerA free atlas packer with practical trimming, preview, and common engine exports.8.1
See all SpritePacker alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026
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