imgmend vs Upscayl — Browser Upscaler or Free Desktop App? (2026)

Upscayl is the better pick if you have a decent GPU, want unlimited free upscaling, or need batches and very large output. imgmend is the better pick if you want a quick result in your browser — no install, works on a phone — for a photo or two. Both are built around the same family of AI upscaling models, so the real difference is where the work happens and what limits come with it.

Quick Facts	imgmend	Upscayl
Where it runs	Any browser (processing happens on imgmend's servers)	Desktop app for Windows, macOS and Linux (processing on your own computer)
Price	Free: 2x, 3 images/day. Pro $9.90 one-time	Free and open source
Install	None	Download and install the app
Batch processing	No — one image at a time	Yes
Scale options	2x free, 4x with face enhancement on Pro	Up to 16x
Model choice	One model, no settings to tune	Multiple models to choose from

Upscayl details are from upscayl.org at the time of writing (October 2026). Features change, so confirm on their site.

imgmend: Upscaling in Your Browser

imgmend's upscaler runs on Real-ESRGAN in the cloud, so your own hardware doesn't matter — a laptop without a GPU or a phone works the same as a gaming PC. Upload an image, wait roughly 15–40 seconds, and download the enlarged version.

What imgmend does well

• Nothing to install, no account. Open the page, upload, download.
• Works on any device, including phones and tablets.
• No hardware requirement — speed doesn't depend on your GPU.
• Pro is a one-time $9.90 (not a subscription), and unlocks 4x upscaling with face enhancement and watermark-free downloads.

imgmend limitations

• 3 free images per day, and free downloads carry a small watermark (Pro removes it).
• 2x only on the free plan — 4x is a Pro feature.
• Large photos are downsized before upscaling. To fit the model's memory limits, images above roughly 2 megapixels are scaled down before they're upscaled, and uploads are capped at 10 MB. For very large originals, a local tool will keep more of your source resolution.
• One image at a time — no batch mode.
• Your image is sent to a server for processing. imgmend doesn't store it after processing, but if you need images to never leave your computer, a local app is the safer choice.

Upscayl: Free, Local, and Configurable

Upscayl is a free and open-source desktop app for Windows, macOS and Linux. Because it runs on your own computer, there's no daily cap, no upload, and no per-image cost.

What Upscayl does well

• Completely free with no usage limits.
• Runs locally — your images stay on your machine, which matters for private or sensitive photos.
• Batch upscaling — process many images in one go.
• More control — multiple models, and scale options up to 16x for very large output.

Upscayl limitations

• Needs a desktop install and isn't a simple phone-browser tool.
• Speed depends on your hardware. A modern GPU makes it fast; an older or integrated one can be slow.
• More choices means more to learn — picking a model and scale takes some trial and error if you just want a quick fix.

Quality: Which Looks Better?

Both rely on the same kind of model family (Real-ESRGAN-based upscaling), so for a typical photo the results are similar. The practical differences come from options: Upscayl lets you try different models and scales, which can help on specific material like illustrations or faces, while imgmend gives you one consistent result with no settings. Results vary by image, so the most reliable test is to run your own photo through both.

Which Should You Use?

Choose Upscayl if: you have a reasonably capable GPU, upscale often or in batches, need very large output, or want your images to stay on your own computer — and you don't mind installing an app.

Choose imgmend if: you want to enlarge one or two photos right now, you're on a phone or a computer you can't install software on, or you'd rather not set anything up.

Many people sensibly use both: Upscayl for big or batch jobs at their desk, a browser tool for a quick one-off elsewhere.

Frequently Asked Questions

Is there an online version of Upscayl?

Upscayl is primarily a desktop app. If you want to upscale in a browser without installing anything, imgmend's upscaler is a free browser-based alternative (2x free, 3 images per day).

Is imgmend as good as Upscayl?

For a single photo, results are comparable since both use Real-ESRGAN-style upscaling. Upscayl offers more models, batch processing, and higher scale factors; imgmend offers convenience — no install and no hardware requirements.

Does imgmend upload my photos?

Yes — processing happens on a server, so the image is sent there. imgmend doesn't store it after processing (see the Privacy Policy). Upscayl runs on your own computer, so nothing is uploaded.

Should I denoise before upscaling?

If the photo is grainy, yes — upscaling enlarges noise along with detail. Run it through imgmend's denoiser first, then upscale.

Try the free browser upscaler — no install, no signup →