Upscayl Review 2026: Is the Free AI Upscaler Actually Good?

I ran 200 real photos through Upscayl in 2026, low-light shots, blurry portraits, old scans, and small product images. Here is the honest verdict on whether the free, open-source AI upscaler can replace tools that cost $199.

Upscayl launched as an open-source side project. By 2026 it has 35,000+ GitHub stars, 12 AI models, and a Mac, Windows and Linux desktop app that runs entirely offline. It costs zero dollars. Forever.

That sounds too good. So I tested it.

I ran the same 200 photos through Upscayl, Topaz Photo AI, Gigapixel AI and Let's Enhance over three weeks. The results surprised me in two directions, one good, one bad.

This review tells you exactly where Upscayl wins, where it falls apart, and whether you should still pay for the paid tools.

Upscayl vs Paid AI Upscalers: Quick Comparison

This table compares Upscayl against the three paid tools most readers ask me about. Winner badges show where Upscayl actually beats the paid options.

What Upscayl Actually Is (And Isn't)

The team behind it ships updates roughly every two months. The 2.15 build I tested in February 2026 added Apple Silicon optimisation, double-click batch loading, and the new Ultramix Balanced model.

The Models, In Plain English

Upscayl ships with around 12 models. You only need to know four:

• Real-ESRGAN is the safe default. Best for general photos, landscapes, and product shots.
• Remacri is sharper. Best for textures, fabrics, architecture and anything with fine detail.
• Ultramix Balanced is new in 2026. Best for skin tones and softer photos where Remacri looks fake.
• Digital Art is for illustrations, anime, and game screenshots. Do not use it on real photos.

The other models are variations and experiments. Most readers can ignore them.

My Test Scores After 200 Real Photos

I scored Upscayl across the categories that actually matter when you upscale photos. These scores reflect testing on photos from real users, not cherry-picked stock images.

The 6.2 for faces is the score that will surprise people. Faces upscaled by Upscayl look slightly plastic, especially eyes and lips. If portraits are your main use case, you need Remini or Topaz Photo AI instead.

Before and After: What 4x Actually Looks Like

This is a representative sample from my test set. Left shows a 480px source crop, right shows the 1920px Upscayl output using Remacri x4. Notice how the brick texture stays sharp without the artificial smoothing other tools add.

When Upscayl Is the Right Tool

After three weeks of testing, here is the honest match between Upscayl and real reader use cases:

• Etsy product photos: Yes, especially with Remacri x4 on flat-lay shots. See our Etsy enhancer guide.
• Old family scans: Yes for the upscale step. Then run a face-aware tool over the result for portraits.
• Real estate listings: Yes for wide shots. Skip it for interiors with heavy noise.
• Anime and digital art: Yes, the Digital Art model is genuinely the best free option on the market.
• Wedding portraits: No. Faces look slightly plastic. Use Remini or Topaz instead.
• Low-light night photos: No. Upscayl has no denoiser, so it amplifies grain.
• RAW workflow in Lightroom: No. Upscayl does not read RAW. Use Lightroom AI Denoise instead.

Pros and Cons (Honest Version)

How to Use Upscayl in 5 Minutes

This is the exact workflow I use to get the best results. Following these steps will save you the trial and error most first-time users hit.

1. Download from the official site only Go to upscayl.org and grab the installer for your operating system. Avoid the random GitHub mirrors and Softonic listings, those bundle adware.
2. Install and launch The installer is around 380MB. Open the app. There is no sign-up, no email gate, no upsell screen. Drag your image into the centre panel.
3. Pick the right model Use Real-ESRGAN for general photos, Remacri for textures and details, Ultramix for skin tones, and Digital Art for illustrations. Do not just leave the default.
4. Choose 4x scale 4x is the sweet spot. 2x is too conservative, 8x and 16x amplify any flaws and take much longer. Leave the output format as PNG for quality.
5. Save and review at 100 percent Always check the output at full size, not zoomed out. Look at faces, hair edges, and smooth surfaces. If you see plastic skin or halos, swap to Ultramix and re-run.

Upscayl vs The Alternatives: What Should You Actually Use?

Upscayl is free, so there is no pricing card for it. Here are the three tools you should consider next to it, with my honest take on when each one is worth paying for.

My honest recommendation: Install Upscayl today, it costs nothing and handles 80 percent of jobs. Buy Topaz Photo AI only if you regularly enhance portraits or shoot RAW. Skip Gigapixel unless you print large.

Upscayl FAQ