2026 年 3 月更新

Free AI Image Upscaler

Enlarge and enhance your images 2x or 4x with sharper detail — perfect for prints, product listings, and displays. 100% free, no sign-up.

Drop an image here or click to upload PNG, JPG or WebP

最大ファイルサイズは10MBです。サインアップさらに詳しく。

How to Upscale an Image in 3 Steps

Upload your image, pick 2x or 4x, and download a sharper, enlarged version.

Upload Your Image

Choose a PNG, JPG, or WebP file from your device. Drag-and-drop works too.

Choose 2x or 4x

Pick how much to enlarge. The upscaler reconstructs edges and detail so the result stays sharp.

Download the Result

Get a high-resolution PNG ready for printing, listings, wallpapers, or displays.

Why Choose Our Image Upscaler

Sharper, Not Blurry

Edge and detail reconstruction keeps enlarged images crisp instead of soft or pixelated.

2x and 4x Options

解像度を 2 倍または 4 倍にします。 Pro では、大きなプリントやディスプレイに 4x を使用できます。

Print-Ready Output

Turn a small digital photo into a higher-resolution file suitable for posters and canvases.

No Watermarks

Download clean results. Usage follows your active account plan limits.

Deleted Within One Hour

Uploaded and generated images are automatically deleted from our servers within one hour. No copies are retained.

Any Device, Any Browser

Works on desktop, tablet, and mobile browsers — no app to install.

AI Image Upscaler FAQ

Quick answers about 2x vs 4x upscaling, supported formats, print quality, privacy, and file size limits.

How does the AI image upscaler work?

The upscaler enlarges your image while reconstructing edges and detail so the result stays sharp instead of turning blurry or pixelated. Upload a photo, choose 2x or 4x, and download the enlarged version in a few seconds.

What is the difference between 2x and 4x upscaling?

2x doubles the width and height of your image (4x the total pixels), while 4x quadruples the width and height (16x the total pixels). Use 2x for a quick quality boost and 4x when you need a small image blown up for printing or large displays. 4x upscaling is available on Pro plans.

What image formats are supported?

PNG、JPG、JPEG、WebP 画像をアップロードできます。アップスケールされた結果は、細部を保持し、どのエディターやデザインツールでも機能する高品質の PNG として提供されます。

What's the maximum file size?

You can upload images up to 10 MB. Because upscaling multiplies the pixel count, very large source images are capped on the Free plan to keep processing fast — Pro plans allow larger inputs and 4x output.

アップスケーリングすると、ぼやけた写真が完璧に鮮明になりますか?

Upscaling reconstructs and sharpens detail that is present in the image, so results are dramatically better than a plain stretch. It cannot invent detail that was never captured, so an extremely blurry or tiny source has limits — but most photos gain a clear, noticeable improvement.

Is my image data safe and private?

Yes. Uploaded and generated images are automatically deleted from our servers within one hour after processing. We never store, share, or reuse your images for any other purpose.

Can I upscale images for printing?

Yes. Upscaling is one of the best ways to prepare a small digital photo for print. Enlarge to 2x or 4x first, then send the higher-resolution file to your printer for crisper posters, photo prints, and canvases.

何かソフトウェアをインストールする必要がありますか?

No. The upscaler runs entirely online in your browser. There is nothing to download or install, and it works on desktop, tablet, and mobile.