Imupscale on Mac with a palm photo, resolution presets, Detail and Turbo engines, crop controls and TIFF export.

Built for Apple Silicon. Powered by Core ML & Metal.Look closer

Local.Unlimited.One payment.

Upscale images on your Mac for life. No credits to spend.

100% local image processing.
Unlimited image upscaling.
Pay once for a lifetime license. No monthly fees. No Imupscale account required.

Download · try free for 50 days

Download first. Buy the lifetime license when you are ready.
Mac App Store release coming soon.

Unlimited. Every image you want.

Private. Every pixel stays local.

Yours. One payment. Keep creating.

02 — LOCAL IMAGE UPSCALING

Upscale images.
Keep every detail local.

See what happens when you upscale an image with Imupscale. Slide between the original photo and the actual exported result.

Detail Engine · Real-ESRGAN

Original → Imupscale

Palm leaves from the actual Imupscale TIFF export, originally 5120 by 3423 pixels.

Original palm photograph at 718 by 480 pixels, shown at the same display size.

Original 718 × 480Upscaled 5120 × 3423

Drag to compare. Use arrow keys when the slider is focused.

Actual output. Optimized web previews.
AI can alter or invent details. Results vary by image.

03 — HOW THE MAC APP WORKS

Import, upscale,
export locally.

An image upscaler that feels at home on your Mac. From a single photograph to a whole folder, keep your workflow moving.

Drop it in.

Add images, folders or a picture from your clipboard. Pick your resolution and crop.

Make it bigger.

Choose your engine. Your Mac processes the images locally with Core ML and Metal.

Keep the result.

Compare the details, then export in PNG, JPEG, WebP or TIFF. Save to your chosen folder.

Imupscale processing the supplied palm image locally, showing the enhancement steps and export progress. — From your files to your finished image. All on your Mac.

04 — TWO LOCAL AI ENGINES

Choose quality
or faster processing.

Take the detail-first route or keep things moving. Both engines run on your device and are included in the app.

Maximum quality

Detail Engine

For the images that deserve a closer look. Choose a quality-focused approach to AI image enlargement.

Real-ESRGAN technology

Faster processing

Turbo Engine

For a faster workflow. Give your images more room while keeping your next project in motion.

Real-CUGAN technology

YOUR IMAGES DON'T NEED A ROUND TRIP.

The cloud can sit this one out.

Image processing happens on your Mac. No picture uploads, no processing server, no Imupscale account. Apple handles App Store purchases and activation.

ON-DEVICE
100%
IMAGE PROCESSING

05 — ONE-TIME LIFETIME LICENSE

Unlimited images.
No monthly fees.
No credits.

Try every part of your workflow for 50 days.
When you're ready, unlock a lifetime license with one payment.

ImupscaleLifetime licensePAY ONCE

$39.99one-time lifetime license · unlimited images

50-day free trial
One-time lifetime unlock
Both AI engines included
Unlimited image processing
Local processing on your Mac
No subscription or automatic renewal

Try free for 50 days

Mac App Store release coming soon.
Apple Silicon · macOS 15 or later

A FEW THINGS TO KNOW

Good questions.
Straight answers.

How do I upscale an image on Mac?

Open Imupscale, import your image and choose a target resolution. Select Detail Engine or Turbo Engine, then start processing. Compare the result and export it to your chosen folder.

Is this an online image upscaler?

Imupscale is a native macOS app. This website shows an interactive comparison of a supplied photo and its actual result. Your own images are processed in the app, locally on your Mac.

How does the 50-day free trial work?

The planned App Store version includes a free 50-day trial activated in the app. You can purchase the lifetime unlock during or after the trial. It does not automatically turn into a paid plan. After the trial, a purchase is required to process new images; your exported files remain yours.

Are there credits, image limits or monthly fees?

No. The lifetime unlock is a one-time purchase with no per-image credits or recurring subscription. Processing speed and supported image sizes depend on your Mac and the app's technical limits.

Can I upscale images offline?

Image processing runs locally using models included in the app. An internet connection may be needed for App Store downloads, purchase activation and restoring purchases.

Which Macs and export formats are supported?

Imupscale requires a Mac with Apple Silicon and macOS 15 or later. Export your results as PNG, JPEG, WebP or TIFF.

Does AI recover the exact original details?

AI estimates and reconstructs detail; it cannot guarantee that new details match the original scene. Always review your results. Only process images you have the rights and permissions to use.