Upscale & sharpen
High-quality lanczos resize at 2×, 3×, 4× — not AI, but crisp.
Drop an image, or click to choose
JPG, PNG, WebP, AVIF. Up to 25 MB.
About Upscale & sharpen
Resize images up to 4× their original dimensions while keeping edges crisp. We use a Lanczos resampling algorithm — fast, predictable, and great for typical photos. It's not AI super-resolution, but the result is sharper than the default browser upscale and works on any image format.
Frequently asked questions
Is this AI upscaling?+
No, it's classical Lanczos resampling. For AI-style detail invention on very small images, use a dedicated service like Topaz or Magnific.
What scales are supported?+
2×, 3×, and 4× the original dimensions.
What formats can I output?+
JPG, PNG, WebP, and AVIF.
Is my image uploaded?+
No — upscaling runs server-side with sharp but the file is processed and discarded in-memory.
Will it work on tiny 100×100 images?+
Yes, but you'll see softness at 4× since there's no extra detail to recover.