• Print-ready photos: make small images large enough for posters, flyers,
and framed prints.
• Product listings: upscale marketplace or e-commerce photos so they look sharp on
high-resolution screens.
• AI art & graphics: enlarge low-resolution AI images for merch, thumbnails,
and social posts.
• Legacy content: give old phone photos or screenshots a cleaner, bigger version
without re-creating them.
Does this upload my photos?
No. The PlainBench image upscaler runs entirely in your browser using client-side
code. Your photos never leave your computer or phone, and there’s no server-side processing.
Is there a limit to file size?
There’s no artificial limit from PlainBench. Practical limits depend on your device memory and browser.
If a very large image fails at 4×, try 2× instead or upscale from a smaller starting size.
Is this an AI image upscaler?
This tool uses high-quality browser resampling instead of heavy, cloud-based AI models. That keeps it
fast, private, and simple while still giving you clean 2× and 4× results.
If you need more aggressive AI enhancement, you can combine this with other AI tools – but for most
practical use-cases, clean resampling is ideal.
Will it work on iOS and Android?
Yes. The interface is tuned for phone screens with large tap targets and clear
steps. Just open PlainBench in your mobile browser, select a photo from your camera roll, and upscale.