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PI1 File - What is a .pi1 file and how do I open it?

Learn about .PI1 files and view a list of programs that open them.

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What is a PI1 file? A PI1 file is a bitmap image created by DEGAS, a graphics editor developed for Atari ST computers in the 1980s. It contains image data in a low-resolution format of 320x200 pixels and supports up to 16 colors (from the limited Atari palette). The PI1 format is one of several DEGAS image variants, each designed for a specific display mode supported by the Atari ST.

More Information While PI1 files store low-resolution images, other variants such as PI2 and PI3 store medium- and high-resolution graphics. These files are saved in a simple bitmap format that stores the color information for each pixel, optimized for use on Atari's hardware. DEGAS was popular among Atari users for creating pixel art and simple digital graphics that matched the system's display capabilities. However, DEGAS and Atari ST systems are no longer in common use, and the PI1 format is uncommon.

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.PI1 File Extension

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What is a PI1 file?

A PI1 file is a bitmap image created by DEGAS, a graphics editor developed for Atari ST computers in the 1980s. It contains image data in a low-resolution format of 320x200 pixels and supports up to 16 colors (from the limited Atari palette). The PI1 format is one of several DEGAS image variants, each designed for a specific display mode supported by the Atari ST.

More Information

While PI1 files store low-resolution images, other variants such as PI2 and PI3 store medium- and high-resolution graphics. These files are saved in a simple bitmap format that stores the color information for each pixel, optimized for use on Atari's hardware.

DEGAS was popular among Atari users for creating pixel art and simple digital graphics that matched the system's display capabilities. However, DEGAS and Atari ST systems are no longer in common use, and the PI1 format is uncommon.

How to open a PI1 file

You can open PI1 files with various programs, such as XnView MP and Lemkesoft GraphicConverter . To open a PI1 file with XnView MP, select File → Open .

How to convert a PI1 file

XnView MP can convert PI1 files to various file types, including the following formats:

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Programs that open PI1 files

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Category: Raster Image Files

Updated: October 6, 2025

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What is a PI1 file?↓
A PI1 file is a bitmap image created by DEGAS, a graphics editor developed for Atari ST computers in the 1980s. It contains image data in a low-resolution format of 320x200 pixels and supports up to 16 colors (from the limited Atari palette). The PI1 format is one of several DEGAS image variants, each designed for a specific display mode supported by the Atari ST.
How do I open a .pi1 file?↓
You can open PI1 files with various programs, such as XnView MP and Lemkesoft GraphicConverter. To open a PI1 file with XnView MP, select File → Open.
How do I convert a .pi1 file?↓
XnView MP can convert PI1 files to various file types, including the following formats:

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