asb

.asb — Aseprite Sprite File

Emanuele Feronato (Aseprite) · 2001

Developer

Emanuele Feronato (Aseprite)

Key Features

Stores multiple animation frames in a single file.
Preserves layers, color palettes, and other editing metadata.
Supports lossless storage of pixel art data.
Optimized for Aseprite's pixel art and animation workflow.

Best For

Detailed pixel art creation and animation.
Projects requiring multiple layers and precise color control.
Storing entire sprite animations for game engines.
Iterative editing of pixel art projects.

Less Ideal For

General-purpose image sharing (e.g., photos).
Vector graphics and scalable illustrations.
Archiving large, uncompressed raster images.
Use in applications that do not support Aseprite files.

Common Use Cases

Creating sprite sheets for video games.
Designing animated character assets.
Developing pixel art for websites or applications.
Archiving complex pixel art projects.

How to Open It

Open the .asb file directly within Aseprite.
If you only need to view or use the final animation, export it from Aseprite to formats like GIF, PNG sprite sheet, or video.
Some third-party game development tools or viewers might offer limited support or import options.
Aseprite is available on Windows, macOS, and Linux.

What is a .asb file?

The .asb file format is primarily used by Aseprite, a popular program for creating and editing pixel art and animated sprites. It's designed to store not just static images but also entire animation frames, layers, color palettes, and other metadata essential for game development and animation workflows. This allows artists to keep all elements of their sprite work organized within a single file, making it easy to revisit, edit, and export to various game engines or platforms. Aseprite's extensive features make .asb a go-to format for many pixel artists.

Programs That Open .asb Files

Platform	Program
Windows	Aseprite	Paid	Official
macOS	Aseprite	Paid	Official
Linux	Aseprite	Paid	Official

How to Convert .asb Files

Format	Method
.GIF	Aseprite, Online converters
.PNG	Aseprite, Online converters
.SPRITE SHEET	Aseprite

Common Problems with .asb Files

⚠️ Cannot open .asb file in non-Aseprite software.

The .asb format is proprietary to Aseprite. Export your work to a more universally compatible format like GIF, PNG, or JPG from within Aseprite.

⚠️ Animation playback issues after export.

Ensure you have selected the correct export settings in Aseprite for the desired format (e.g., frame delay for GIF) and check compatibility with the target platform.

Frequently Asked Questions

Is .asb an open-source format?▼

No, the .asb format is proprietary and specifically designed for use with the Aseprite application.

Can I edit .asb files on different operating systems?▼

Yes, as long as you have Aseprite installed, which is available for Windows, macOS, and Linux.

What is the difference between .ase and .asb?▼

Both are Aseprite file formats. .ase is the older format, while .asb is the current, more feature-rich format that supports advanced features like timelines, layers, and more complex animations.

Technical Details

ASB files are binary files that contain a sequence of frames representing an animation, along with associated layer data, palettes, and other project-specific information. Aseprite employs lossless compression for most of its internal data storage to preserve the integrity of the pixel art. The structure allows for efficient loading and manipulation of complex sprite sheets and animations within the Aseprite application.

Did You Know?

Aseprite itself is written in C++ and uses the Skia graphics library.

The .asb format evolved from the older .ase format to accommodate more complex animation and editing features.

Security Information

Like most image files, .asb files themselves do not typically pose a security risk unless they are part of a malicious payload. Always download software like Aseprite from official sources to avoid malware.