Upscayl
by Upscayl
Free and open-source AI image upscaler for enhancing low-resolution images with local AI models on desktop.
Upscayl is a free and open-source AI image upscaling application designed to enhance and enlarge low-resolution images. Its desktop application runs on Linux, macOS, and Windows and performs processing locally using AI models and the NCNN/Vulkan backend. Upscayl supports multiple upscaling models, batch processing, customizable output settings, and custom models. The project is based on Real-ESRGAN technology and is designed for creators, designers, photographers, developers, and users who need higher-resolution images without relying on cloud processing.
Provider
Upscayl
Category
AI Image
Available On
Windows, macOS, Linux, Cloud
Launched
Aug 2022
Use Cases
Image Upscaling, Photography, Graphic Design, Digital Art
Best For
Users who need free local AI image upscaling, batch enhancement, custom models, and higher-resolution images
🧠 Models (4)
Real-ESRGANvReal-ESRGAN
Image Super Resolution
Context Window
N/A
Input
image
Output
image
Real-ESRGAN x4plusvx4plus
Image Upscaling
Context Window
N/A
Input
image
Output
image
RemacrivRemacri
Image Upscaling
Context Window
N/A
Input
image
Output
image
UltrasharpvUltrasharp
Image Upscaling
Context Window
N/A
Input
image
Output
image
✨ Features (9)
AI Image Upscaling
Enlarges low-resolution images using AI-based super-resolution models
Local Processing
Desktop Upscayl processes images locally without requiring an internet connection
Multiple AI Models
Provides multiple models for different image enhancement and upscaling needs
Batch Upscaling
Process multiple images in a batch instead of manually processing each image
Custom Models
Allows users to add compatible custom AI models for different enhancement results
GPU Acceleration
Uses Vulkan-compatible GPU hardware to accelerate local image processing
Cross Platform
Desktop application is available for Linux, macOS, and Windows
Cloud Upscaling
Upscayl Cloud provides online AI upscaling with additional cloud-based features
High Resolution Output
Supports large output resolutions and cloud plans can upscale images to very high resolutions
💰 Pricing
✓ Free Plan
✓ Free Trial
✓ Paid Plan
✓ Enterprise
Starting Price
$24.99/month
Billed monthly
API Pricing
Upscayl Cloud uses credit-based pricing; Desktop is free and open source with unlimited local upscaling.
More Info
View pricing page ↗💬 Prompt Library (4)
Choose Upscaling Model
GeneralChoose a suitable Upscayl workflow for an image
I want to upscale this image for [PRINTING / SOCIAL MEDIA / DIGITAL ART / PHOTO RESTORATION]. The original image is [RESOLUTION] and contains [IMAGE TYPE]. Which Upscayl model and settings should I try for the best result?
Prepare Image for Printing
GeneralPlan image upscaling for high-quality printing
I need to prepare an image for printing at [WIDTH] x [HEIGHT] inches and [DPI] DPI. Explain how much I should upscale the image and what settings I should use in Upscayl.
Improve Old Photo
GeneralCreate a workflow for enhancing old photographs
I have an old low-resolution photograph. Explain how I can use Upscayl to improve its resolution and recover useful details while avoiding excessive sharpening or artificial-looking results.
Upscale Digital Art
GeneralImprove resolution of digital artwork
I want to enlarge this digital artwork by [2X / 4X / 8X]. Recommend a suitable Upscayl model and explain how to preserve clean edges, textures, and fine details.
🔗 Integrations (5)
Real-ESRGAN
ai-model
Open-source super-resolution technology used by Upscayl
NCNN
inference
High-performance neural network inference framework used in the Upscayl backend
Vulkan
gpu
GPU compute technology used for accelerated local upscaling
GitHub
development
Hosts the open-source Upscayl project and related repositories
Hugging Face
model-hosting
Can be used as a source for compatible AI models and model resources
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⚠️ Limitations
- •Desktop Upscayl requires a Vulkan-compatible GPU for local image upscaling
- •Integrated GPUs may not work reliably with the desktop application
- •Upscayl cannot reliably fix heavily out-of-focus or severely blurred photographs
- •AI upscaling may generate or infer details that were not present in the original image
- •Cloud features use credits and may require a paid plan after the available free trial
- •Results vary depending on the original image quality and selected model
📚 Sources
- https://upscayl.org(official)
- https://upscayl.org/download(official)
- https://upscayl.org/pricing(official)
- https://github.com/upscayl/upscayl(official)
- https://github.com/upscayl/upscayl-ncnn(official)
- https://github.com/xinntao/Real-ESRGAN(official)