upscayl
Enlarge and enhance low-resolution images using advanced AI algorithms.
Enlarge and enhance low-resolution images locally using advanced AI models.
Upscayl is a desktop application that lets you enlarge and enhance low-resolution or pixelated images using Real-ESRGAN and Vulkan architecture. It suits photographers looking for a local, open-source tool to upscale images without relying on cloud services, provided they have compatible hardware.
What it is
The application runs AI models locally to guess missing details and increase image resolution. It supports custom models from OpenModelDb, batch upscaling, and offers both a graphical interface and a CLI counterpart called upscayl-ncnn.
Who it's for
It suits photographers who need to enlarge low-res files and possess a capable Vulkan-compatible GPU. It does not suit anyone with integrated graphics, out-of-focus blurred photos, or those running older machines without GPU acceleration.
Key features
Real-ESRGAN AI Backend
Enhances pixelated and low-resolution images by predicting missing details.
Custom Model Support
Allows you to load and use community models like Remacri or UltraSharp.
Batch Processing
Queues multiple images for automated upscaling workflows.
Cross-Platform Clients
Provides native installers for Linux, macOS, and Windows.
Up and running in 3 steps
Our honest verdict
What's great
- Runs entirely on your local machine keeping your photo library private
- Supports importing additional custom AI models for varied aesthetic results
- Includes a companion CLI tool for scriptable command-line usage
- Active model ecosystem leveraging research from Real-ESRGAN and OpenModelDb
Where it falls short
- Requires a Vulkan-compatible GPU, leaving most integrated graphics and CPUs unsupported
- Cannot fix out-of-focus or severely blurred photographs
- Batch processing requires waiting for all images to finish before post-processing occurs
Pricing & license
Free under its AGPL-3.0 license. The only cost is running it yourself on your own hardware.
Open remote AI-training roles
767 open remote AI-training roles, updated November 14, 2026; most pay $20–$175 an hour. Zekai lists them free; the application goes to the employer’s platform.
Alternatives
These reviewed AI tools do the same job instantly — from our scored directory.
Use it, or have us set it up
FAQ
Do I need a dedicated GPU for Upscayl to work?
Yes, NCNN Vulkan requires a Vulkan-compatible GPU. It generally will not work with integrated graphics or CPUs.
Can Upscayl fix blurry or out-of-focus photos?
No, it can enhance low resolution and pixelated images by guessing details, but it cannot perform de-blurring or focus adjustment.
