Resize Image
Change width, height, scale, or percentage while keeping the correct aspect ratio.
Drag & drop an image
or choose from your device
How to Use Custom Image Resizer
Select an Image
Upload a JPG, PNG, or WebP photo from your device.
Set Width & Height
Enter target dimensions in pixels, mm, cm, or inches, and lock the aspect ratio if desired.
Resize & Download
Click 'Resize Image' to render and download your resized picture instantly.
About Custom Image Resizer
Our Custom Image Resizer lets you change image dimensions by exact pixels, percentages, or physical print measurements (cm, mm, inches).
Equipped with bicubic high-definition canvas smoothing, it scales images cleanly without jagged edges or pixelation distortion while keeping your files entirely private on your device.
Common Use Cases
- Fitting banner images to exact pixel widths required by blogs and e-commerce websites.
- Scaling down oversized smartphone photos for fast sharing and low data usage.
- Preparing exact photo dimensions for passports, ID cards, and online application forms.
Private & Secure Browser Processing
All processing is executed locally in your browser. Files are never transmitted or stored on remote servers.
Frequently Asked Questions - Resize Image
How do I maintain aspect ratio when resizing?
Keep the 'Lock Aspect Ratio' toggle enabled. When you change either width or height, the other dimension adjusts automatically to prevent distortion.
Can I resize by percentage or presets?
Yes. Switch to the 'By Percentage' tab to scale down photos with one click, or use 'Preset Sizes' for popular social media and display formats.
Does resizing images happen in my browser?
Yes, 100% inside your web browser. No files or images are ever uploaded to any remote server.