Upscayl GUI

A Lightweight & Portable, dark-mode GUI wrapper for upscayl-bin.exe. Provides a modern interface with native Windows integration for drag-and-drop file/folder handling.

📷 Screenshot

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✨Features

• Small Footprint: The GUI takes up just ~80 KB
• Portable INI Configuration: Stores user settings locally in upscayl-gui.ini
• Dark Mode UI: Custom HTML/CSS interface
• Modern Interface: Modern design with rounded corners (Windows 11)
• Native File Drop Support: Full drag-and-drop support via Windows shell integration
• Folder Batch Processing: Support for batch upscaling of entire folders

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⬇️ Download Upscayl GUI

Download latest version here

⬇️ Download Engine (upscayl-bin.exe)

Download latest version here

⬇️ Download Models (for ease of use, put them in the “models” folder)

Download lightweight fast models here

Download Upscayl models here

Want more models?

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🗂️ File Structure

models\                   (Model files - .bin format)
upscayl-bin.exe           (Engine executable)
upscayl-gui.exe           (GUI App)
upscayl-gui.html          (HTML/CSS UI)
upscayl-gui.ini           (Settings - auto-created)

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⚙️ Settings Structure (upscayl-gui.ini)

[Engine]
path=upscayl-bin.exe
[Options]
modelScale=4
outScale=2
compress=
format=png
models=
modelName=remacri-4x
threads=
tile=0
gpu=
resize=
width=
tta=0
verbose=0

Note

Paths inside the exe folder are stored relatively; external paths remain absolute.

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📚 Batch Processing

When a folder is provided as input:

1. Output path is treated as a target folder
2. Output folder is created if it doesn't exist
3. All Supported files in the input folder are processed