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Upscalr

DESKTOPComing Soon · Q3 2026
  • macOS

AI-powered image upscaling — enlarge images 2x or 4x with RealESRGAN and CoreML

Upscalr uses the RealESRGAN neural network via Apple's CoreML to upscale images with stunning quality. Tile-based processing splits images into 512x512 tiles with weighted blending for seamless results on high-resolution files. Batch processing, drag-and-drop input, before-and-after side-by-side previews, and Finder integration via right-click context menu. Supports PNG, JPEG, TIFF, WebP, HEIC, GIF, and BMP. Automatically optimizes for Apple Silicon's Neural Engine with model prewarming for instant first upscale.

What it does

2x and 4x upscaling with RealESRGAN
Tile-based processing for high-res files
Batch processing with progress tracking
Before-and-after side-by-side preview
Finder integration via right-click context menu
Supports PNG, JPEG, TIFF, WebP, HEIC, GIF, BMP

Who this is for

Photographers and designers who need to enlarge images without losing quality.

Specs

Platform
macOS
Built With
Swift & SwiftUI
Requires
macOS 13+
Telemetry
None
Built with:SwiftUICoreMLRealESRGANFinderSync
image upscalingAI upscaleRealESRGANCoreMLimage enlargementsuper resolutionneural engine

Upscalr is coming Q3 2026

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