Free Image Resizer
Change image dimensions effortlessly. Resize by exact pixels or percentage. Maintain perfect aspect ratios automatically. Process multiple images at once. 100% free, no registration required.
Resize Images
JPG, PNG, WebP supported
When to Resize Images
Common scenarios where image resizing is essential
Web Optimization
Large images slow down websites dramatically. Resize to optimal dimensions before uploading. Proper resizing improves page speed and SEO.
Social Media
Every platform has specific image size requirements. Instagram: 1080×1080px, Facebook: 820×312px, Twitter: 1500×500px. Resize for perfect display.
Email Attachments
Most email servers limit attachments to 10-25MB. Resize to 50% or specify smaller dimensions to fit multiple images in one email.
Print Preparation
Print requires specific DPI and dimensions. For 4×6" photo at 300 DPI, you need exactly 1200×1800px. Resize to exact print dimensions.
Profile Pictures & Avatars
Gaming platforms, forums, and professional networks require small, square avatars. Discord: 128×128px, LinkedIn: 400×400px.
Thumbnail Creation
Video thumbnails, product previews, and image galleries need optimized thumbnails. YouTube: 1280×720px, product thumbs: 300-500px.
How Image Resizing Works
Understanding the technology behind quality image resizing
Upload Image
Drag and drop your images or click to select. Supports JPG, PNG, WebP, and more.
Set Dimensions
Enter exact pixel dimensions or use percentage scaling. Lock aspect ratio to prevent distortion.
Preview
See the resized preview before downloading. Compare original vs new dimensions.
Download
Download your resized images. All processing happens locally in your browser.
Frequently Asked Questions
Is this image resizer completely free?
Yes, 100% free with no limitations. Resize unlimited images, no registration required, no hidden fees.
Will resizing reduce image quality?
Downscaling (making smaller) usually preserves quality perfectly. Upscaling (making larger) may introduce blurriness as new pixels are invented.
Are my images uploaded to your servers?
No. All resizing happens locally in your browser using HTML5 Canvas technology. Your photos never leave your device.
Can I resize multiple images at once?
Yes! You can upload and process multiple images in a batch. Each will be resized with the same settings.
What formats are supported?
We support input and output for JPG, PNG, and WebP formats.
Does resizing reduce file size?
Yes, significantly. Reducing dimensions decreases the number of pixels, which drops the file size drastically.