Convertidor de JPG a ICO
Convierte JPG a ICO en línea, gratis. Rápido, sin software. Hasta 100 MB.
Drop your JPG file hereTap to choose your JPG file
or
Max 100 MB
How to Convert JPG to ICO
Upload
Drag and drop your JPG image into the converter above, or click Choose JPG File to browse your device.
Convert
Click Convert to ICO. Our server processes the image and generates a properly formatted ICO icon file. Takes a few seconds.
Download
Click Download ICO to save the icon file. Use it as a website favicon, desktop icon, or app icon — no registration required.
Create ICO Files on Any Device
On Windows
Windows uses ICO as its native icon format for desktop shortcuts, taskbar icons, folder icons, and application executables. To create a custom icon from a JPG photo or logo, simply upload it to our converter and download the ICO file. Then right-click any shortcut, go to Properties > Change Icon, and browse to your new ICO file. No Photoshop or icon editors needed — our online tool works directly in Edge, Chrome, or Firefox.
On Mac
While macOS uses ICNS as its native icon format, ICO files are still needed for web favicons and cross-platform projects. If you are building a website or web app, you need a favicon.ico file that works in all browsers. Our converter works directly in Safari, Chrome, or Firefox on any Mac. Upload your JPG, get an ICO file ready for your website's root directory.
On Linux
Linux desktop environments (GNOME, KDE, XFCE) support various icon formats, but ICO remains important for web development and Wine/Windows application compatibility. Web developers on Linux frequently need to create favicon.ico files for their projects. Our online converter eliminates the need for ImageMagick command-line operations — upload your JPG from any Linux browser and download the ICO instantly.
On Mobile
Creating ICO files on mobile devices is traditionally difficult since there are no native icon editors for iOS or Android. Our web-based converter solves this — upload a JPG photo from your phone's gallery, convert it to ICO, and download the result. Perfect for web developers who need to quickly create a favicon while away from their desktop. Works on iPhone, iPad, and Android.
What is JPG?
JPG (also called JPEG) is the most widely used image format in the world. Developed by the Joint Photographic Experts Group in 1992, it uses lossy compression to reduce file sizes while maintaining visual quality. JPG is the default output format for digital cameras, smartphones, and most image editing software.
JPG supports 24-bit color (16.7 million colors) and is ideal for photographs, gradients, and complex images. However, JPG does not support transparency — every pixel has a solid color. This is important to know when converting to ICO, as icons with transparent backgrounds require a PNG source image instead.
Common JPG file extensions include .jpg, .jpeg, and .jfif. All three are identical in format — only the extension differs. Our converter accepts both .jpg and .jpeg files.
What is ICO?
ICO is the icon file format used by Microsoft Windows and web browsers for favicons. Unlike regular image formats, an ICO file can contain multiple images at different sizes and color depths within a single file. This allows the operating system or browser to pick the most appropriate size for the context.
The most common use of ICO today is the favicon — the small icon shown in browser tabs, bookmarks, and address bars. When you place a favicon.ico file in your website's root directory, browsers automatically display it. Standard favicon sizes are 16×16, 32×32, and 48×48 pixels.
ICO files also support transparency (via alpha channel), 256×256 pixel icons for Windows Vista and later, and PNG compression for larger icon sizes. Windows uses ICO for desktop shortcuts, Start menu entries, taskbar icons, and executable icons embedded in .exe files.
JPG vs ICO: Quick Comparison
| Feature | JPG | ICO |
|---|---|---|
| Purpose | Photographs and images | Icons and favicons |
| Compression | Lossy (adjustable quality) | Uncompressed or PNG-compressed |
| Transparency | Not supported | Supported (alpha channel) |
| Multiple sizes | Single image per file | Multiple sizes in one file |
| Max dimensions | 65,535 × 65,535 pixels | 256 × 256 pixels (per layer) |
| Color depth | 24-bit (16.7M colors) | Up to 32-bit (with alpha) |
| Web usage | Photos, thumbnails, backgrounds | Favicons, bookmarks, PWA icons |
| Desktop usage | Wallpapers, photo viewing | Shortcuts, app icons, folder icons |
| File extension | .jpg, .jpeg | .ico |
| Best for | Photos, complex images | Small icons, branding elements |
Why Convert JPG to ICO?
Create website favicons
Every website needs a favicon — the small icon shown in browser tabs, bookmarks, and search results. The traditional and most compatible format is ICO. By converting your logo or brand image from JPG to ICO, you get a favicon that works in all browsers, including older versions of Internet Explorer that don't support PNG favicons. Place the resulting favicon.ico in your website's root directory.
Custom desktop icons
Windows uses ICO for all desktop shortcut icons, folder icons, and application icons. If you want to personalize your desktop with custom icons made from your own photos or artwork, you need to convert those images to ICO format. Our converter handles this instantly — upload your JPG, download an ICO, and apply it to any shortcut via right-click > Properties > Change Icon.
App and game development
Windows application developers need ICO files for their executable icons. When you compile an .exe file, the icon must be in ICO format. Game developers also use ICO for desktop shortcuts and Steam library icons. Our converter lets you quickly create ICO files from JPG concept art, logos, or screenshots without needing Visual Studio or specialized icon editors.
Progressive Web App (PWA) icons
While modern PWAs primarily use PNG icons, having a favicon.ico as a fallback ensures compatibility across all browsers and platforms. Many PWA manifests include both PNG icons (for the manifest) and an ICO favicon (for the browser tab). Converting your app icon from JPG to ICO gives you the browser-tab icon component of your PWA setup.
Frequently Asked Questions
API de conversión JPG a ICO
Convierte archivos JPG a ICO mediante programación con una sola petición HTTP — procesamiento por lotes hasta 20 archivos, 1000 conversiones al día, gratis, sin registro.
POST /api/v1/batch procesa 20 archivos a la vez →
curl -X POST https://cleverutils.com/api/v1/convert \
-F "[email protected]"\
-F "to_format=ico"