AI image upscaler in your browser

Upscale one image at a time with browser-based AI processing. Your image is not uploaded to our server.

Upload one image

This tool processes a single JPG, PNG, or WebP image. Large images can be slow or fail on low-memory devices.

Choose one image to start.

Original

No image selected.

Upscaled

Output will appear here.

What is sent over the network?

Your image pixels are processed locally in your browser and are not uploaded to ToolsForImage. To keep this free tool affordable, the browser may download TensorFlow.js and AI model files from public CDNs such as jsDelivr/GitHub. Those files can be cached in your browser for future use.

What is not supported?

Batch upscaling is not supported right now. Process one image at a time to avoid browser memory issues and keep the tool usable on normal laptops and phones.

Performance notes

The first run can take longer because the AI model must download. Photo quality mode uses Real-ESRGAN at 4x and is slower than the illustration model. If your browser runs out of memory, try a smaller image or switch to the Real-CUGAN illustration model at 2x.

Frequently Asked Questions

AI Image Upscaler 是免费的吗？

是的。AI Image Upscaler 可在浏览器中免费使用。

这个工具免费吗？

是的。ToolsForImage 工具免费使用，无需创建账号。

我的文件会上传到服务器吗？

不会。本站当前图片工具会在您的浏览器中处理所选文件，而不是上传到我们的后端。

它可以离线使用吗？

页面和所需浏览器库必须先加载。工具加载后，图片处理会在浏览器本地完成，但本站不是专用离线应用。

最大文件大小是多少？

由于文件在本地处理，图片处理没有服务器端上传限制。实际限制取决于浏览器、设备内存和图片尺寸。

支持批处理吗？

此页面一次处理一张图片。如有可用批量版本，请使用批处理工具菜单。

可以在手机上使用吗？

可以。该工具可在现代移动和桌面浏览器中使用，具体取决于设备内存和浏览器支持。