Image Resizer made simple
Resize multiple images online for free. Scale to any dimensions, percentage, or use popular presets for social media and web.
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Drag & drop or browse to select multiple images to resize
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Supports PNG, JPG, WebP, AVIF, SVG, GIF · Max 20MB per file · Batch resize supported
Resize your images
Click on any image in the queue to preview original vs resized
Select an image to preview
Waiting for resize
Ready to download
Your resized images are ready for download
Files are automatically deleted after 1 hour
Supported formats
All major image formats supported
The Ultimate Guide to Resizing Images Online
Everything you need to know about resizing images for web, social media, and print
What is an Image Resizer?
An image resizer is a tool that changes the dimensions of images. Whether you need to resize multiple images online for social media, web design, or printing, our free image resizer lets you scale to exact pixel dimensions, percentages, or use popular presets—all in batch mode.
Why Batch Resize Images?
Save Time
Resize hundreds of images at once instead of one by one. Perfect for photographers and content creators.
Social Media Ready
Resize all your images to the exact dimensions required for Instagram, Facebook, Twitter, and more.
Consistent Results
Apply the same resize settings to all images for consistent quality and dimensions across your entire set.
Understanding Resize Modes
📐 Custom Dimensions
Set exact width and height in pixels. Perfect for when you need precise dimensions.
📊 Percentage
Scale images by a percentage (10% to 200%). Great for quick resizing.
📋 Preset Sizes
Choose from popular social media, web, and print presets. One-click resizing!
📦 Fit to Box
Resize to fit within dimensions while maintaining aspect ratio. Adds padding if needed.
🖼️ Cover Box
Resize to cover dimensions exactly. Crops to fill the box while maintaining aspect ratio.
💡 Pro Tip: Use "Fit" for images that must be fully visible, "Cover" for backgrounds and banners where cropping is acceptable.
Popular Resize Presets
| Platform | Dimensions (px) | Aspect Ratio | Use Case |
|---|---|---|---|
| Instagram Square | 1080 × 1080 | 1:1 | Posts, Profile |
| Instagram Portrait | 1080 × 1350 | 4:5 | Posts, Stories |
| Instagram Story | 1080 × 1920 | 9:16 | Stories, Reels |
| YouTube Thumbnail | 1280 × 720 | 16:9 | Video Thumbnails |
| Facebook Post | 1200 × 630 | 1.91:1 | Link Posts |
| Twitter Header | 1500 × 500 | 3:1 | Profile Banners |
| Pinterest Pin | 1000 × 1500 | 2:3 | Pins, Graphics |
| Web Banner | 1920 × 1080 | 16:9 | Hero Images |
Pro Tips for Batch Resizing
- Use Maintain Aspect Ratio to prevent distortion
- Enable Upscaling only when you need to enlarge images
- Choose WebP format for the best quality-to-size ratio
- Use presets for social media to save time
- Add suffix or prefix to easily identify resized images
Frequently Asked Questions About Resizing Images
How do I resize multiple images online?
Upload all your images at once, choose your resize settings, and click "Resize All". All images will be resized with the same dimensions and settings.
What is the difference between Fit and Cover?
Fit resizes the image to fit within the dimensions while maintaining aspect ratio (may add padding). Cover resizes to cover the dimensions exactly (may crop).
Can I resize images without losing quality?
Yes! When resizing down, you don't lose quality. For resizing up, we use high-quality interpolation. We also support high-quality output formats like PNG and WebP.
What image formats are supported?
We support PNG, JPG, JPEG, WebP, AVIF, SVG, GIF, BMP, ICO, HEIC, and TIFF formats for both input and output.
How do I resize images for social media?
Select the "Preset Size" mode and choose your platform from the dropdown. We have presets for Instagram, Facebook, Twitter, LinkedIn, Pinterest, and more.
Is this image resizer free to use?
Yes! Our image resizer is completely free to use with no sign-up required. You can resize as many images as you want, completely free.