Image Resizer Online
Use this free online Image Resizer tool to change image dimensions by pixel size or percentage. Choose output format and quality.
Click or drag image here
Supports JPG, PNG, WebP, GIF
How it works & FAQ
Browser-Based
Why this is secure?
Image resizing is done entirely in your browser using HTML5 Canvas. Your images are never uploaded to any server.
Step-by-Step Guide
- 1Upload your image (JPG, PNG, or WebP).
- 2Enter the new width and height in pixels, or set a percentage scale.
- 3Click 'Resize' and download the resized image instantly.
Frequently Asked Questions (FAQ)
Can I resize while keeping the aspect ratio?
Yes. Lock the aspect ratio by clicking the chain icon — changing one dimension automatically updates the other.
Will resizing reduce image quality?
Scaling down looks sharp. Scaling up significantly beyond the original size will cause pixelation.
Which formats are supported?
JPG, PNG, and WebP images are supported. The output format matches the original.
Zero Data Leaks
Your images are resized locally in browser memory. Nothing is sent to any server.