Free and Open Source AI Image Upscaler for Linux, MacOS and Windows
GitHub Repo

Free and Open Source AI Image Upscaler for Linux, MacOS and Windows

@the_ospsPost Author

Project Description

View on GitHub

Upscayl: The Open Source AI Image Upscaler You Should Know About

Ever tried enlarging a low-res image only to end up with a blurry mess? Traditional upscaling often sacrifices quality, but AI-powered tools like Upscayl change the game—and the best part? It’s free, open source, and works across Linux, macOS, and Windows.

Upscayl (pronounced "upscale") uses machine learning models to sharpen and enhance images without the pixelation you’d expect. Whether you’re restoring old photos, prepping assets for a project, or just curious about AI image processing, this tool is worth a look.

What It Does

Upscayl is a desktop app that leverages AI models (like Real-ESRGAN) to upscale images while preserving—or even improving—details. Unlike basic resizing, it reconstructs textures and edges, making images crisper. It supports batch processing, multiple AI models, and formats like PNG and JPEG.

Why It’s Cool

  • Privacy-first: Runs locally—no uploading your images to a cloud service.
  • Cross-platform: No favoritism here; Linux, Windows, and macOS are all supported.
  • Custom models: Swap between different AI models depending on your needs (e.g., photos vs. illustrations).
  • Active community: With 38k+ GitHub stars and frequent updates, it’s clearly resonating with users.

How to Try It

  1. Grab the latest release from GitHub or the official site.
  2. Install it (deb, rpm, AppImage, or EXE—your pick).
  3. Drag in an image, pick a model, and let the AI work its magic.

Final Thoughts

Upscayl isn’t just another niche tool; it’s a legit alternative to paid upscalers like Topaz Gigapixel, especially for devs who value open source. The UI is straightforward, and the fact that it’s self-contained (no internet needed) is a huge plus. If you’ve been wrestling with pixelated assets or just want to experiment with AI upscaling, give it a spin.

Follow us @githubprojects for more cool projects.

Back to Projects
Project ID: 1955977210202087540Last updated: August 14, 2025 at 12:58 PM