Open Source v2.15.0 ✓ Checksum Published

Download Upscayl AI Image Upscaler for Windows PC v2.15.0 for Windows PC

Name: Upscayl AI Image Upscaler for Windows PC
Availability: InStock
Author: Upscayl (open source, Narayan)

Upscayl enlarges low-resolution images up to 4x with AI — restore old photos, sharpen AI art and anime — completely free, offline, and open source, using...

⬇ Direct Download (248.8 MB)

Technical Specifications & System Requirements

Developer Upscayl (open source, Narayan)

Platform & OS Windows 10 / 11 (64-bit)

Package Size 248.8 MB

Architecture x64 (64-bit)

Package Format EXE Installer

Security Verification SHA-256 checksum published

SHA-256 Cryptographic Checksum Computed from the file we serve

              5dd7f58abafae2907fede489324a074cb6959a93c5714f3d0609650ab942ff3c
            

              $ Get-FileHash .\upscayl-ai-image-upscaler-pc.exe -Algorithm SHA256
            

Software notes

The Bottom Line: Upscayl is the easiest recommendation in AI utilities: it does one job — make small images big — visibly well, for free, on your own hardware. Feed it a 640-pixel product photo, a compressed WhatsApp image, a scan of a 1998 family print, or a mid-journey render at the wrong size, pick the right model, and the 4x output genuinely reconstructs plausible detail instead of the smeary blur of traditional resizing. That it runs locally via Vulkan is the quiet superpower: no credits, no queue, no uploading client work or personal photos to a stranger's server, and batch mode happily chews through a whole folder overnight. The physics still apply. Upscayl cannot invent true information — a 64-pixel face stays impressionistic — and results vary by model choice, which new users must learn by experiment (photos, digital art, and sharpening models behave quite differently). Speed lives and dies by your GPU: a discrete card finishes in seconds where integrated graphics may take minutes per image, and very large outputs eat RAM. The interface, while simple, occasionally exposes its cross-platform Electron roots. But the value equation is unmatched: commercial upscalers charge subscriptions for the same underlying ESRGAN technology that Upscayl wraps in a friendly, open-source, zero-cost package. For photographers, designers, archivists and AI-art hobbyists alike, it belongs in the toolbox.

Features

Real AI upscaling up to 4x (16x with double-upscale) using proven Real-ESRGAN-family models, with visibly better detail than conventional resizing.
Completely free and open source — no credits, subscriptions, watermarks, or per-image limits that commercial upscalers impose.
Fully local processing via Vulkan: private by architecture, works offline, and batch mode processes entire folders unattended.
Simple enough for anyone: drag, choose a model suited to photos/art/anime, click — with sensible advanced controls underneath.
This is the official Windows build from the Upscayl GitHub releases — the project's own distribution channel.

Considerations

Performance depends heavily on your GPU; integrated graphics can make large images a minutes-long wait.
It cannot recover detail that never existed — extremely small or damaged sources stay approximate, and picking the wrong model can produce plastic-looking results.
Very large outputs (e.g. 4x of a 24 MP photo) demand substantial RAM and disk space per file.

About & Overview: Upscayl AI Image Upscaler for Windows PC

Upscayl is a free, open-source AI image upscaler (AGPL) that increases image resolution up to 4x while reconstructing detail, using neural networks (Real-ESRGAN family models) running locally on your GPU via Vulkan — no uploads, no credits, no subscriptions. It handles photographs, digital art and anime with selectable models, supports batch processing of whole folders, double-upscale for extreme enlargements, and a simple drag-and-drop interface anyone can use. Because processing is local, your images never leave the PC. A discrete or modern integrated GPU is strongly recommended for reasonable speeds. This download is the official Windows build from the Upscayl GitHub releases.

How to Install & Verify Upscayl AI Image Upscaler for Windows PC

STEP 1

Download and run the installer

Download Upscayl from the official GitHub link on this page and run upscayl-2.15.0-win.exe to install.

STEP 2

Pick an image and a model

Launch Upscayl, drop in an image (or a folder for batch mode), and choose a model — General Photo for pictures, Digital Art for illustrations.

STEP 3

Upscale and save

Set the scale (2x/3x/4x) and output folder, then click Upscayl. First run may take a little longer while the model initializes on your GPU.

Related Windows PC Software & Alternatives

GIMP 3.2.6 • Open Source

Krita 5.2.2 • Open Source

PhotoCraft 0.10.0 • Open Source

Nomacs — Fast Lightweight Image Viewer for Windows PC 3.22.4 • Open Source

ShareX 21.0.0 • Open Source

Inkscape 1.3.2 • Open Source

Frequently Asked Questions & Verification Guide

Is Upscayl really free?

Yes — Upscayl is free and open source (AGPL). There are no credits, subscriptions or watermarks. The same team also offers a separate cloud product, but the desktop app on this page is entirely free and local.

Do I need a graphics card?

A GPU with Vulkan support is strongly recommended — discrete NVIDIA/AMD cards are fastest, modern integrated graphics work but slower. Upscayl cannot run meaningfully on CPU alone.

Does Upscayl upload my images anywhere?

No. All processing happens locally on your machine, which is why it works offline and is safe for personal or client images.

How big can it make an image?

Up to 4x per pass (e.g. 1000px → 4000px), and the Double Upscayl option chains two passes for up to 16x on smaller sources.

Which model should I choose?

Use the General Photo (Real-ESRGAN) model for photographs, the Digital Art/anime models for illustrations and AI art, and Remacri/Ultrasharp variants when you want crisper edges on detailed images.