PhD in Computer Science (Image Processing) from IIT Delhi with 12+ years experience in image manipulation algorithms. Developed resizing tools used by 5.6M+ users worldwide. Expert in Lanczos resampling, canvas optimization, and batch processing.
What Our Users Say
"Best image resizer I've ever used! The batch processing saves me hours of work and the quality is perfect. Dr. Kushwaha's expertise shows."
AK
Arjun Kumar
Professional Photographer
"The aspect ratio lock is genius. No more distorted images. Perfect for my e-commerce product photos. 5.6M users can't be wrong!"
PM
Priya Mehta
E-commerce Manager
"ZIP download for batch processed images is a lifesaver. Saves so much time! The quality at 90% is indistinguishable from original."
RJ
Rahul Jain
Web Developer
Frequently Asked Questions
Is this image resizer really free?
Yes, completely free with no hidden charges. No signup required, unlimited resizing, no watermarks. Trusted by 5.6M+ users worldwide.
What image formats are supported?
We support JPG, PNG, WebP, BMP, GIF, and TIFF. All major image types are covered. You can also choose output format.
Can I resize multiple images at once?
Yes! You can upload up to 50 images and resize them all at once with batch processing. Apply same dimensions or customize individually.
Will the image quality be preserved?
Our advanced Lanczos resampling algorithm maintains maximum quality. You can adjust quality settings from 1-100% for optimal results.
What is aspect ratio lock?
Aspect ratio lock maintains original proportions. When enabled, changing width automatically adjusts height to prevent distortion.
Is my data private?
100% private! All processing happens locally in your browser. No images are ever uploaded. Military-grade privacy.
Privacy Policy
Last Updated: March 12, 2026
1. No Data Collection
We do not collect, store, or transmit any images you upload. All processing happens locally in your browser using HTML5 Canvas. Your images never leave your device.
2. Local Processing
Your images never leave your device. All resizing is done client-side for maximum privacy and security. No upload, no server storage.
3. No Tracking
We do not track your usage or store any metadata about your images. No cookies, no analytics, no third-party trackers.
4. Local Storage
Your theme preference is saved in your browser's local storage. This stays on your device and is never sent to our servers.
Upload multiple images (up to 50), set desired dimensions, and click "Apply to All". Then click "Resize Images" to process all images simultaneously. Download as ZIP for batch download.
What is the best quality setting?
90% quality offers the best balance between file size and visual quality. For maximum quality, use 100% (larger files). For web use, 80-85% is usually sufficient.
How to resize images without losing quality?
Enable aspect ratio lock to maintain proportions, set quality to 90-100%, and use Lanczos resampling (our default algorithm). Avoid enlarging images beyond original size.
What are the differences between Exact, Fit, and Fill modes?
Exact: forces exact dimensions (may distort). Fit: scales to fit within dimensions (adds padding). Fill: scales to fill dimensions completely (may crop edges).