画像ツール 100% ブラウザ内プライバシー

無料オンライン画像トリミングツール

SNSやWeb用に写真を正確なサイズに切り抜きます。回転や反転、ズーム操作にも対応。

Drag and drop an image here, or click to browse

Supports JPG, PNG, WebP up to 50MB

or press Ctrl+V to paste from clipboard

使い方

Three simple steps to process your files

Drag and drop your JPG, PNG, or WebP photo into the canvas area, or paste directly with Ctrl+V.

Select standard aspect ratios (1:1, 16:9, 4:3, 9:16) or free-form, then adjust zoom and rotation as desired.

Choose your preferred file format (JPG, PNG, WebP) and quality level, then download your cropped image instantly.

主な機能

Instant presets for social avatars (1:1), YouTube thumbnails (16:9), Instagram stories (9:16), and print standards.

Freely resize crop boundaries with intuitive draggable corner and edge handles.

Rotate photos clockwise or counter-clockwise and flip horizontally or vertically prior to cropping.

Zoom in and pan smoothly across the canvas to capture the exact detail you need.

Cropped pixels are rendered using smooth bicubic canvas interpolation for maximum image sharpness.

Image processing runs entirely within your browser memory. Your images are never uploaded or stored.

FAQ

What aspect ratios are supported?

You can choose between Free-form, 1:1 (Square), 16:9 (Widescreen), 4:3 (Standard), 9:16 (Story/Reels), 3:2, and 2:3.

Can I rotate and flip my image before cropping?

Yes. The cropper provides one-click 90-degree rotations in both directions as well as horizontal and vertical flipping.

Will cropping reduce my photo resolution?

Cropping extracts the native pixels within your chosen frame without unnecessary downsampling, preserving maximum visual detail.

Are my photos uploaded to any server?

No. All cropping and canvas manipulations take place strictly in your local browser sandbox.

画質を落とさずにピクセル、割合、SNSプリセットでJPG、PNG、WebPの画像サイズを変更。

品質コントロールとリアルタイム比較で画像のファイルサイズを効果的に削減。

JPGやPNG画像を、用紙サイズや余白を自由に設定できるPDF文書に変換。