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Resize image

Quickly resize images in your browser with batch processing support.100% local processing, zero upload, zero risk.

Add images
Supports JPG/JPEG/PNG/WEBP/GIF/AVIF formats
How to use?
1. Drag and drop images to the upload area or click to select files 2. Choose resize method: by pixels or by percentage 3. Enter target size or scaling percentage 4. Click the resize button to download Supports batch processing with multiple images uploaded at the same time.
Data security notice
Your images are completely secure: • All processing is done locally in your browser • Images are not uploaded to any server • Data is automatically cleared after refreshing or closing the page • Works offline without internet connection
Supported image formats
• JPG/JPEG - Common photo format • PNG - Supports transparent background • WebP - Modern web image format • GIF - Supports animation • AVIF - Next-generation compression format Note: Animated GIFs retain animation after resizing.
Resize method explanation
Resize by pixels: • Set width and height separately • Check "Lock aspect ratio" to automatically calculate the other side Resize by percentage: • Enter scaling percentage (e.g., 50% means reducing by half) • Automatically maintains original aspect ratio
Usage tips
• Web images: 800-1200px width is suitable • Social media: Refer to platform recommended sizes • Email attachments: Recommended to reduce to within 1000px • Mobile viewing: Width should not exceed 1080px
FAQ
Q: Why did the image become blurry? A: Enlarging images may reduce clarity; it's recommended to only reduce size. Q: How many images can be processed? A: Depends on browser performance; generally, 10-20 images run smoothly. Q: Will the file size change? A: Usually, smaller dimensions result in a smaller file size.