Fix Low Resolution Images

The tool enlarges images using high-quality interpolation, which makes small images bigger without adding harsh pixelation. It smooths edges and produces a cleaner result than simple scaling. However, it cannot recover detail that was never captured — a very blurry source will become a larger, slightly smoother version.

Generally, images under 500x500 pixels are considered low resolution for modern use. Images under 200x200 are very low resolution. The upscaler is most effective on images that are at least 100x100 pixels — extremely tiny images (under 50x50) will not produce usable results.

Start with 2x. If the result is still too small, try 4x. For a 200x200 image, 2x gives you 400x400 (decent for web) and 4x gives 800x800 (good for most uses). The smaller the source, the more noticeable the softening at higher scale factors.

Upscaling does not remove compression artifacts, but the interpolation process can make them less harsh by smoothing blocky regions. Results are usually stronger when you start with the least-compressed version of the image you can find.

For quick, free upscaling without installing software, this tool is a practical option. It uses the same bicubic interpolation algorithm available in Photoshop. For advanced restoration (denoising, deblurring, detail hallucination), dedicated AI super-resolution tools in Photoshop or Topaz may produce stronger results on very low-quality sources.