图像转换软件

Image Upscaler

Increase image dimensions with high-quality browser interpolation, optional sharpening, preview, and PNG or JPG output.

选择一张图片开始Preview a high-quality browser enlargement before downloading.

私有浏览器处理

您选择的文件保留在此设备上,不会上传进行转换。

有用的输出控制

选择影响兼容性、分辨率、质量或页面布局的设置。

直接或 ZIP 下载

直接保存一个结果或在有效的 ZIP 存档中接收多个输出文件。

它是如何运作的

  1. 1

    选择您的文件

    从您的设备中选择支持的图像或文档。

  2. 2

    设置输出

    调整可用的质量、页面、比例或布局控件。

  3. 3

    转换并下载

    运行浏览器工具并保存生成的结果。

What browser upscaling can do

Upscaling increases pixel dimensions and smooths the enlarged result. Sharpening can improve edge definition, but enlargement cannot recreate fine detail missing from the original. This tool uses deterministic browser resampling rather than generative enhancement.

常见问题

Does upscaling create new detail?

No. It interpolates existing pixels and can sharpen edges, but it cannot recover detail absent from the source.

Why is there a pixel limit?

Very large canvases can exhaust browser memory, so the tool blocks unsafe output sizes.

我的图片上传了吗?

No. The enlargement runs in your browser.

Image Upscaler last reviewed: Sep 21, 2026.