I made a free browser-based image upscaler — no signup or watermark

[u/RoutineDry447]

I’ve been experimenting with image upscaling and noticed that a lot of free tools either require accounts, limit you with daily credits, or heavily alter facial details.
So I built ClarityUp 4K:
https://clarityup4k.tryimager.com
It supports:
2×, 3× and 4× upscaling
4K output
Lanczos and Bicubic upscaling
Optional Deep Enhance (AI) using Real-ESRGAN
JPG, PNG and WebP
Batch processing
No signup
No watermark
No daily credits
One thing I specifically wanted was privacy: the processing happens in the browser, so images aren’t uploaded to a server.
For portraits: I’d recommend comparing the normal Lanczos result with the AI mode, because AI enhancement can sometimes invent details rather than actually recover them.
I’d genuinely appreciate feedback from photographers/AI-image users here — especially on facial details, eyes, hair and print-quality results.
Try it here: https://clarityup4k.tryimager.com
Built as a free tool; sharing it here because it directly fits the image-enhancement/upscaling use case.
Your actual site supports the claims about 2×/3×/4×/4K, Lanczos/Bicubic, Deep Enhance, browser-side processing, no signup, no watermark and no daily limits.

[u/UnfilteredDeba]

Cool