Image Resizer Tool - User Guide
Key Features: Bulk image resizing, format conversion (JPEG, PNG, WebP), aspect ratio preservation, custom quality settings, and instant preview.
Getting Started
Our free online Image Resizer tool helps you resize, compress, and convert multiple images simultaneously. Perfect for optimizing images for websites, social media, or email attachments.
Basic Usage
- Upload images by clicking "Select Images" or drag and drop them into the upload area
- Set your desired dimensions in the width and height fields
- Choose your preferred output format (JPEG, PNG, or WebP)
- Adjust quality settings if needed (1-100)
- Click "Process Images" to resize
- Download individual images or use "Download All"
Features In Detail
Image Upload
- Multiple image upload support
- Drag and drop functionality
- Preview of original images with size and dimensions
Resizing Options
- Custom width and height settings
- Aspect ratio preservation option
- Batch processing capability
Pro Tip: Keep "Maintain aspect ratio" checked to prevent image distortion. The tool will automatically calculate the best dimensions while preserving the original proportions.
Format Conversion
- JPEG: Best for photographs and complex images with many colors
- PNG: Ideal for images with text, lines, and sharp edges
- WebP: Modern format offering better compression and quality
Note: Higher quality settings result in larger file sizes. For web images, a quality setting of 80-90 usually provides a good balance between quality and file size.
Frequently Asked Questions (FAQ)
Q: What's the maximum number of images I can process at once?
A: There's no strict limit on the number of images you can process simultaneously. However, processing very large numbers of images may take longer and depend on your device's capabilities.
Q: What image formats are supported for upload?
A: The tool supports all common image formats including JPEG, PNG, GIF, and WebP for input. You can convert these to JPEG, PNG, or WebP formats.
Q: Is there a file size limit?
A: The tool processes images directly in your browser, so file size limits depend on your device's memory. For optimal performance, we recommend keeping individual files under 10MB.
Q: Why should I use WebP format?
A: WebP offers better compression than JPEG and PNG while maintaining similar quality. It's increasingly supported by modern browsers and can help reduce your website's loading time.
Q: Are my images stored on your servers?
A: No. All processing happens locally in your browser. Your images are never uploaded to any server, ensuring complete privacy and security.
Q: What's the best quality setting for web images?
A: For web optimization, we recommend:
- JPEG: 80-90 quality for photos
- PNG: Best for screenshots and images with text
- WebP: 75-85 quality for optimal compression
Troubleshooting
- If images aren't processing, check that they're in a supported format
- Clear your browser cache if you experience any issues
- Ensure JavaScript is enabled in your browser
- For large images, give the tool more time to process
Best Practices:
- Use WebP format for web images when possible
- Keep aspect ratio enabled to maintain image proportions
- Process similar images together for consistent results
- Preview processed images before downloading