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.

你们会把我的文件上传到服务器吗？+

不会——这里的每个工具都完全在你的设备上处理文件，不会向服务器上传任何内容。唯一的例外是 AI 工具，它们会把提取的文本（而非文件本身）发送给 Claude 来完成工作。

有文件大小限制吗？+

我们没有人为设置限制，但由于处理过程在你的浏览器中进行，非常大的文件（超过 500MB 或 1000 页）会受到你设备内存的限制，而非我们的限制。