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
Choose imagesDrag or click to choose
Opening image…
ICO Viewer Online
- 1
Open a ICO file
Choose a ICO file from your device or drag it into the viewer.
- 2
Inspect the decoded preview
Use Fit, 100%, zoom, rotate, fullscreen and background controls to examine the ICO image.
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Check the format boundary
Before sharing or exporting, review this format-specific point: View the decoded icon dimensions and original file size before converting or using the asset.
What you can check in the ICO viewer
Use this format-specific viewer to inspect the decoded image and file details before you share, publish or convert it.
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.
What stays unchanged
Viewing, zooming, fitting, rotating and changing the preview background do not modify the original file.
Frequently asked questions
Can I open ICO files in ViewerPix?
Open Windows icon and favicon-style ICO files directly in your browser with zoom, fit and file details. ViewerPix opens supported files locally in your browser. Compatibility can still vary with the exact encoding, file size, and browser.
What can I do with a ICO file in Image Viewer?
Open the image, check its format and dimensions, zoom, fit it to the screen, rotate the preview, change the background, and switch between multiple files. Image Viewer is for inspection, not editing or exporting a new image.
Does viewing a ICO file change the original?
No. Viewing, zooming, fitting, preview rotation, and background changes do not modify, compress, or replace the original file.
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.