Upscale Image

Enlarge a photo 2×, 3× or 4× with smooth resampling, right in your browser.

Select an image

Click to choose, or drop a file here

Related PDF tools

Resize ImageScale an image to a percentage or an exact pixel width, right in your browser.Compress ImageShrink a JPG, PNG or WebP to a smaller file — by quality or a target size.Crop ImageCrop a JPG, PNG or WebP to any area or aspect ratio, right in your browser.Photo FiltersApply grayscale, sepia, brightness, contrast or saturation to an image.

Upscale Image — frequently asked questions

Is this AI upscaling?+

No. It's a high-quality bicubic resize with light sharpening — it enlarges cleanly but can't add detail that isn't there. True AI super-resolution needs a large model.

Best use?+

Making a small logo or graphic bigger, or bumping a photo up a size for print. A very low-res photo won't become sharp.

你們會把我的檔案上傳到伺服器嗎？+

不會——這裡的每個工具都完全在你的裝置上處理檔案，不會向伺服器上傳任何內容。唯一的例外是 AI 工具，它們會把擷取的文字（而非檔案本身）傳送給 Claude 來完成工作。

有檔案大小限制嗎？+

我們沒有人為設下限制，但由於處理過程在你的瀏覽器中進行，非常大的檔案（超過 500MB 或 1000 頁）會受你裝置記憶體的限制，而非我們的限制。