Image Resizer
Resize images to any dimension — by pixel or percentage, with aspect ratio lock
Runs in browser
Files stay on your device
Bulk processing
Drag files here or click to browse
Supported formats
85%
Higher quality = larger file size
How does image resizing work?
Convertly resizes images directly in your browser using the HTML Canvas API. No file is ever sent to a server — resizing happens instantly on your device, keeping your files completely private.
What output formats are supported?
You can resize and save as JPG, PNG, or WebP. Use PNG to preserve transparency, JPG or WebP for smaller file sizes.