HEIC to ICO Converter

Select files for conversion or just drag and drop them to the upload area

How to convert HEIC files to ICO online?

Step 1.

Upload HEIC-file

Click "Choose File" button to select a heic file on your computer. HEIC file size can be up to 50 Mb.
Step 2.

Convert HEIC to ICO

Click "Convert" button to start conversion.
Step 3.

Download your ICO

When the conversion process is complete, you can download the ICO file.

Information about HEIC and ICO file formats

Name HEIC ICO
Full name HEIC, High Efficiency Image Format ICO - Microsoft icon
File extension .heic .ico
MIME type image/x-icon, image/vnd.-microsoft.icon
Developed by Moving Pictures Experts Group Microsoft
Type of format Raster image Graphics file format for computer icons
Description HEIC is the new standard image format introduced by Apple with its 2017 update from iOS 10 to iOS 11. It is also known under the acronym of HEIF which stands for High Efficiency Image Format. The HEIC format was developed by MPEG (Moving Picture Experts Group) which are otherwise known for video and audio formats such as MP3 or MP4. Being the new default or standard image format for iOS 11 devices, HEIC was designed to replace the JPG format. It's smaller in size with comparable quality while also supporting transparency. Furthermore, HEIC files can contain several images which fits Apple's "Live Photo" functionality. Furthermore, it stores information about image editing like rotation and cropping which enables the user to revert the changes later on. The ICO file format is an image file format for computer icons in Microsoft Windows. ICO files contain one or more small images at multiple sizes and color depths, such that they may be scaled appropriately. In Windows, all executables that display an icon to the user, on the desktop, in the Start Menu, or in Windows Explorer, must carry the icon in ICO format.
Technical details The lossy compressed HEIC format is based on HEVC (High Efficiency Video Compression), which was also developed by MPEG. Together with transparency and the ability to store more than one image, HEIC files can also contain 16-bit colors, whereas JPG files can only support 8-bit. HEIC files still have some compatibility issues, even though they are already posted and saved to social media or cloud storage as JPG images since they are automatically converted. Third-party apps or computer programs can still have difficulties interpreting HEIC files though. Luckily, you can disable saving images as HEIC on a iOS 11 device by going to Settings > Camera > Formats > Most Compatible, which will force iOS 11 to save images in the JPEG format. An ICO file is made up of an ICONDIR ("Icon directory") structure, containing an ICONDIRENTRY structure for each image in the file, followed by a contiguous block of all image bitmap data (which may be in either Windows BMP format, excluding the BITMAPFILEHEADER structure, or in PNG format, stored in its entirety).
File conversion HEIC conversion ICO conversion
Associated programs Apple iOS (iOS), Apple Photos (Mac), Dropbox (Windows, Mac, Linux, iOS, Android) Axialis IconWorkshop, IcoFX, IconBuilder, Microangelo Toolset, Greenfish Icon Editor Pro, GIMP, ImageMagick, IrfanView, ResEdit.
Wiki https://en.wikipedia.org/wiki/High_Efficiency_Image_File_Format https://en.wikipedia.org/wiki/ICO_(file_format)