Magpie

Project Overview

Magpie is a lightweight window upscaling tool for Windows. With a set of efficient scaling algorithms and filters, it upscales low-resolution games and small windows to crisp output on modern displays, supporting both fullscreen and windowed scaling behind a WinUI interface.

Make old games and blurry small windows sharp again on 2K/4K screens.

Key Features

• Fullscreen scaling: upscale full-screen game output to your display resolution
• Windowed scaling: upscale a specific window without going fullscreen
• Rich algorithm library: built-in Anime4K, FSR, CRT shaders and more filters
• Built-in effects docs: a wiki cataloging every included effect and its parameters
• WinUI interface: modern settings UI with light and dark themes
• Multi-monitor: scaling across multiple displays

Target Audience

• Retro and low-resolution game players
• Anime viewers using Anime4K
• Users of small apps looking blurry on high-res screens
• Picture-quality tinkerers

Quick Start

1. Download Magpie from Releases and run it
2. Launch your game or target window and trigger scaling
3. Pick a scaling algorithm and fine-tune parameters
4. For old games with DPI issues, set "High DPI scaling override" to "Application" in compatibility settings

Core Advantages

• Lightweight: real-time GPU shader processing with low overhead
• Algorithm breadth: from Anime4K to CRT in one tool
• Active community: UI translations maintained on Weblate
• Free and open source: GPLv3

System Requirements

Item	Requirement
OS	Windows 10 v1903+ or Windows 11
GPU	DirectX feature level 11
License	GPLv3

Notes

• Games without high-DPI support need the DPI override tweak
• Some games' own naive window zooming is worse than their built-in best resolution