Convert JPG to ICO — Quick Favicon
Need a quick favicon from a JPG? KoalaPic converts your image to a multi-resolution ICO file. Note that JPG lacks transparency, so the favicon will have an opaque background — PNG or SVG sources are preferred for favicons.
Image converter
Drag and drop files or folders here, or
HEIC, WEBP, AVIF, TIFF, BMP, SVG, GIF, PNG, JPG, PDF, CR2, NEF, ARW, DNG — up to 50MB each, or 50 from a folder
Your Recent Conversions
·
Image
Camera
Exposure
Location
Color Profile
Format Details
What to try
Image Comparison
Conversion Options
Ctrl+Z undo · Ctrl+Y redo
·
Modern format with excellent compression. Limited browser support.
Apple's format. Excellent quality at small sizes.
Lossless format. Large files, ideal for print/archival.
256 colors max. Best for simple graphics.
Uncompressed bitmap. Very large files.
Vector trace. Best for logos and simple graphics. Not a pixel-perfect conversion.
Same format? You might want to compress instead.
SSIM-optimized — finds the lowest file size at your chosen visual fidelity.
Need to crop first? Use the Crop tool. Want to adjust or filter? Try the Editor.
Resize tool → Live preview, percentage scaling, and dimension presets.
Tip: Use PNG or WebP for transparent output. Standalone tool →
Lossless format — files can be large
GIF is limited to 256 colors
Best for logos, icons, and line art. Photos produce stylized results.
BMP files are uncompressed and can be very large. Consider TIFF (LZW) or PNG for lossless with smaller file sizes.
Leave empty for all pages. Multi-page PDFs produce a ZIP.
Conversion complete!
Enjoying KoalaPic? Share it with others.
Settings snapshot
Manage Custom Presets
No custom presets yet. Use the "+ Save" button to create one.
Image Comparison
Keyboard Shortcuts
General
JPG vs ICO Comparison
| Feature | JPG | ICO |
|---|---|---|
| Full Name | Joint Photographic Experts Group | Icon File Format |
| Lossy Compression | ✅ | ❌ |
| Lossless Compression | ❌ | ✅ |
| Transparency | ❌ | ✅ |
| Animation | ❌ | ❌ |
| Browser Support | All browsers, all devices | All browsers (favicon) |
| Color Depth | 16.7M (24-bit) | 16.7M (24/32-bit) |
| Typical Use | Photos, web images, email attachments | Website favicons, Windows application icons |
| Year Introduced | 1992 | 1985 |
Why Convert JPG to ICO?
Sometimes you need a favicon fast and a JPG is all you have. While PNG or SVG are better source formats for favicons (due to transparency support), a JPG-sourced ICO works fine for solid-background icons.
How to Convert JPG to ICO
Upload a square JPG (or crop will be applied).
KoalaPic generates a multi-size ICO with standard favicon dimensions.
Download and deploy as favicon.ico.
Quality Note
JPG doesn't support transparency, so the favicon will have an opaque background. For favicons with transparent backgrounds, use a PNG or SVG source instead. Square JPG images produce the best results.