01 / Photo
Standard
upscayl-standard-4x
General-purpose upscaling for photos
5KM TECH / HiPixel for macOS
Make Your Images
Crystal Clear
Transform blurry, low-resolution images into stunning high-definition quality with AI — a native macOS app built with SwiftUI.
Or install from the terminal
$brew install okooo5km/tap/hipixel
Local by default
Every pixel is processed on your Mac. No uploads, no account, no queue.
Four models, one click
Standard, Lite, High Fidelity, and Digital Art — plus any ncnn model you bring.
Built for batches
Drop hundreds of images and let it work through them while you do something else.
IN MOTION
See it work.
A full pass over a set of images, from drop to export.
QUALITY
Before & After Comparison
Drag the slider to see the difference.
Before
After
AI MODELS
Four AI Models, One for Every Image
HiPixel ships with four built-in Upscayl models — and loads your own.
02 / Fast
Lite
upscayl-lite-4x
Faster processing with lower resource usage
03 / Detail
High Fidelity
high-fidelity-4x
Maximum detail preservation
04 / Art
Digital Art
digital-art-4x
Illustrations, anime, and digital artwork
Bring your own models: drop ncnn-format model files (.bin + .param) in a folder, select it in Settings, and they appear in the model list.
CAPABILITIES
Powerful Features
AI Processing
Four AI Models
Standard, Lite, High Fidelity, and Digital Art — each tuned for different image types
Custom Models
Load your own ncnn-format models from a local folder
Double Processing & TTA
Upscale twice in one pass, with optional Test-Time Augmentation for even better quality
GPU Acceleration
Hardware-accelerated processing with manual GPU selection and custom tile size
Workflow & Automation
Drag, Drop, Done
Images are processed automatically the moment you drop them — hundreds at a time
Folder Monitoring
New images added to watched folders are upscaled automatically
URL Scheme & Shortcuts
Automate everything via hipixel:// or the Upscale Images action in Apple Shortcuts
Zipic Integration
Smart compression after upscaling — the best of both quality and file size
Interface & Experience
Native macOS App
Built with SwiftUI — light/dark appearance, menu bar access, and silent launch
Comparison Viewer
Zoom 1x-5x, pan around, and reprocess with one click
Flexible Output
Save manually or automatically as PNG, JPG, WebP, or the original format — EXIF preserved
Three Notification Styles
HiPixel banner, notch-style, or system notifications — your choice
AUTOMATION
Built for Automation
Script it, schedule it, chain it — HiPixel plugs into any workflow.
# Upscale via URL scheme — every option is a parameter
open "hipixel://?path=~/Pictures/photo.jpg&imageScale=4.0&saveImageAs=PNG&doubleUpscayl=true"Every processing option is available as a URL parameter — model, scale, format, output folder, and more.
Apple Shortcuts
Add the “Upscale Images” action to build your own automations — every option configurable per shortcut.
Zipic Workflow
Upscale with HiPixel, compress with Zipic — the optimal balance of quality and file size.
SUPPORT
Support HiPixel
Your support helps maintain and improve HiPixel!