JPG to ICO Converter
Convert a JPG image into a Windows icon (ICO) file. Upload a JPG file, choose an icon size, and download a square .ico file.
Click to upload a JPG image
Your file is processed entirely in your browser
Recommended Settings
Pro Tips
- •Your JPG is scaled to fit within a square canvas of the chosen size, centered with transparent padding if it isn't already square
- •The generated ICO file embeds a modern PNG image, which is supported by Windows Vista and later, as well as most icon viewers
- •Smaller sizes (16-32px) are best for taskbar or file icons, while larger sizes (128-256px) suit desktop shortcuts and app icons
- •The whole file is converted locally in your browser - nothing is uploaded anywhere
Most Popular
Most users convert a logo at 64x64 or 256x256 for a standard app icon
When to Use This Tool
Convert artwork into an ICO file for use as a Windows application's icon.
Turn a logo into a small ICO file suitable for use as a website favicon.
Generate custom icons for Windows desktop shortcuts or file associations.
Create application icons from brand artwork for use across installers, executables, and shortcuts.
How It Works
Read the uploaded JPG file and decode it using the browser's native image support
Scale the image to fit within the chosen icon size, centering it on a square transparent canvas
Encode the square canvas as a PNG image using the browser's native encoder
Wrap the PNG data in a minimal ICO file container with the required icon directory header
100% Private
Files never leave your device. All processing happens locally in your browser.
Lightning Fast
Powered by Custom ICO container for optimal performance on modern browsers.
Secure
No data collection, no tracking, no sign-up required.
Frequently Asked Questions
What happens if my JPG isn't square?
The image is scaled to fit within the square icon size while preserving its aspect ratio, and centered with transparent padding filling any remaining space.
Will this ICO file work on older versions of Windows?
The file uses a PNG-based icon entry, which is supported starting with Windows Vista. For compatibility with very old Windows versions, a classic BMP-based ICO would be needed instead.
Which size should I choose?
Use 16 or 32px for small UI icons like file associations, 48-64px for desktop icons, and 128-256px for high-resolution app icons and modern displays.
Is my image uploaded to a server?
No. The entire file is read, converted, and encoded locally in your browser. Your image never leaves your device.
Does the icon keep its transparency?
JPG doesn't support transparency, so the padding around a non-square image is transparent, but the source artwork itself renders fully opaque, as expected.