Upscale an image 2× or 4×
Increase image resolution 2× or 4× with high-quality resampling and sharpening — fast, local, and no upload.
How this upscaler works
It enlarges your image in progressive steps using the browser's high-quality bicubic-style resampling, then applies a sharpening pass to recover crisp edges. This is fast, deterministic smart-upscaling — not a neural super-resolution model that invents new detail.
When to use it
Great for making small logos, icons, thumbnails and web graphics larger without the blocky, jagged look of a plain stretch. It smooths and sharpens what's already there rather than hallucinating texture.
Honest expectations
Upscaling can't add detail the original never captured. A tiny, blurry photo won't become razor-sharp — but it will look noticeably smoother and cleaner than a naive resize, and it's produced entirely on your device.
How to upscale image
- Pick a 2× or 4× scale and toggle edge sharpening.
- Drop an image into the zone above.
- Wait a moment while it's resampled and sharpened locally.
- Preview the result and download the enlarged PNG.