Image Resizer
Resize images by pixels, percentage, or social media presets. Supports batch processing and maintains quality.
Drop images here or click to browse
Supports JPEG, PNG, WebP, BMP, GIF
Max 50MB per file
What is the Image Resizer?
Why Use This Tool?
100% Private
Instant Batch Processing
Lock Aspect Ratio
Social Media Ready
Common Use Cases
- Resize photos before uploading to websites or e-commerce platforms
- Prepare images for social media posts with platform-specific dimensions
- Reduce image dimensions to improve website page load speed
- Create thumbnails for blog posts, videos, or product listings
- Batch resize exported design assets for different screen densities
- Resize screenshots before attaching to emails or documents
Supported Formats
| Format | Input | Output | Best For |
|---|---|---|---|
| JPEG | Photos, web images | ||
| PNG | Logos, transparency | ||
| WebP | Next-gen web images | ||
| GIF | — | Animations (first frame) | |
| BMP | — | Windows bitmap |
Social Media Size Presets
| Preset | Dimensions (px) |
|---|---|
| Instagram Post | 1080 × 1080 |
| Instagram Story | 1080 × 1920 |
| Facebook Cover | 820 × 312 |
| Twitter/X Header | 1500 × 500 |
| LinkedIn Banner | 1584 × 396 |
| YouTube Thumbnail | 1280 × 720 |
Frequently Asked Questions
1. Does resizing images lose quality?
Downscaling an image (making it smaller) generally preserves quality well. However, upscaling (making it larger than the original) can result in a blurry or pixelated output, as new pixels are interpolated. For best results, always start with the highest resolution source image available.
2. Is there a file size limit for uploads?
Yes, each image can be up to 50 MB. Since processing is done entirely within your browser, very large files may take a moment to process depending on your device's memory and CPU, but they are never uploaded to our servers.
3. Are my images uploaded to any server?
No. This tool is 100% client-side. Your images are processed entirely in your browser using the Canvas API and are never transmitted over the internet. Your privacy and data security are guaranteed.
4. How do I resize to a specific percentage?
To resize by percentage, simply switch to the 'By Percentage' tab and drag the slider to your desired scale (e.g., 50% for half size). The tool will automatically calculate the new dimensions while maintaining the original aspect ratio.
5. Can I resize multiple images at once?
Yes! Our tool supports batch processing. You can upload multiple images, apply your desired resize settings once, and the tool will process all of them simultaneously. You can then download them individually or as a single ZIP file.