Convert any image to ICO format with multiple sizes and transparency support. Download your PNG to ICO, JPG to ICO, or any format - individually or as a ZIP bundle. Free, fast and private.
or click to browse files
No registration, no limits. Convert images instantly with no waiting.
Processing happens in your browser. Files are never uploaded to our servers.
Download each icon size separately as PNG, or grab all sizes in a ZIP.
Support for PNG, JPG, GIF, BMP, WebP, SVG, and more formats.
Drag and drop your image or click to browse. Accepts PNG, JPG, GIF, BMP, WebP, SVG, and TIFF. For best results with the PNG to ICO conversion, use a square source image.
Choose the sizes you need (16x16, 32x32, 48x48, etc.) or use quick presets for favicon or desktop icons.
Adjust color depth, transparency, and scaling to match your needs. Use 32-bit for icons with transparency, 24-bit for solid backgrounds, or 8-bit for legacy compatibility.
Click "Convert to ICO" then download the combined ICO file, individual PNG sizes, or all sizes as a ZIP archive.
16x16, 32x32, 48x48 - Essential sizes for website favicons displayed in browser tabs, bookmarks, and shortcuts. Use our Favicon Generator for a complete favicon package.
16x16 through 256x256 - Complete set for Windows desktop icons, shortcuts, taskbar, and Explorer views.
All available sizes including 512x512 for high-DPI displays, modern apps, and future-proofing.
ICO (Icon) is Microsoft's standard image format for icons in Windows. Unlike regular images, ICO files can contain multiple sizes and color depths of the same icon, allowing Windows to select the most appropriate version for different contexts.
ICO files are essential for website favicons, Windows application icons, desktop shortcuts, and system icons. Our converter creates properly structured ICO files compatible with all versions of Windows and major browsers. You can also convert from SVG to ICO or WebP to ICO with full transparency support.
Our converter supports all major image formats including PNG, JPG/JPEG, GIF, BMP, WebP, SVG, and TIFF. PNG is recommended for best results, especially if you need transparency. You can also use our dedicated JPG to ICO or SVG to ICO converters.
Yes! After conversion, each icon size is shown as a preview card with its own download button. Click the download icon on any card to save that size as a PNG file. You can also download all sizes together as a ZIP archive using the "Download All as ZIP" button.
For favicons, use the "Favicon" preset which includes 16x16, 32x32, and 48x48 pixels. These sizes cover browser tabs, bookmarks, and shortcuts across all major browsers. For a complete favicon package with all formats, try our Favicon Generator.
Yes! When "Preserve transparency" is enabled and you select 32-bit color depth, the converter fully maintains alpha transparency from PNG, GIF, WebP, and other formats that support it. This is essential for icons that need to blend with any background color.
Absolutely. All conversion is done entirely in your browser using the Canvas API - your image is never uploaded to our servers. This makes the conversion both fast and completely private.
Absolutely! That's one of the key features of the ICO format. Select all the sizes you need, and they'll all be embedded in a single .ico file. Windows and browsers will automatically use the most appropriate size for each context.