Preview ICO files without an icon editor
Use ViewerPix for a quick browser preview of .ico files used by Windows applications and website icons.
Private · Browser-based · No signup
ICO Viewer Online
Open Windows icon and favicon-style ICO files directly in your browser with zoom, fit and file details.
JPG · PNG · WebP · AVIF · HEIC · HEIF · TIFF · SVG · GIF · BMP · JFIF
Drop images hereor click to choose filesMultiple images supported · Files stay on your device
Opening image…
Inspect the displayable icon image
ICO files can contain multiple embedded sizes or images. ViewerPix currently shows the representation decoded by the browser rather than exposing each embedded frame separately.
Check size and dimensions
View the decoded icon dimensions and original file size before converting or using the asset.
How to use ICO Viewer Online
- 1
Open an image
Choose a supported image from your device or drag it into the viewer.
- 2
Inspect the image
Use Fit, 100%, zoom, rotate, fullscreen and preview-background controls.
- 3
Switch between files
Add more images and use the thumbnail list or arrow keys to move between them.
About ICO Viewer Online
Use the viewer to open the image, inspect its dimensions and format, zoom, fit, rotate, change the preview background, and switch between multiple files.
Frequently asked questions
Does opening an image change the original file?
No. Viewing, zooming, fitting, rotating the preview, and changing the preview background do not modify the source file.
Can I open more than one image?
Yes. Add multiple supported images and switch between them using the thumbnail list.
Are my images uploaded to a server?
No. Supported image processing runs locally in your browser. Third-party decoder code may be loaded only when a format needs it, but your image itself stays on your device.
Private browser processing
ViewerPix processes supported images on your device. Your image files are not uploaded to a ViewerPix application server for this task.