BMP to ICO Converter

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

How to convert BMP files to ICO online?

Step 1.

Upload BMP-file

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

Convert BMP to ICO

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

Download your ICO

Let the file convert and you can download your ICO file right afterwards.

Information about BMP and ICO file formats

Name BMP ICO
Full name BMP - Microsoft Windows bitmap ICO - Microsoft icon
File extension .bmp, .dib .ico
MIME type image/bmp, image/x-bmp image/x-icon, image/vnd.-microsoft.icon
Developed by Microsoft Microsoft
Type of format Raster graphics Graphics file format for computer icons
Description The BMP file format, also known as bitmap image file or device independent bitmap (DIB) file format or simply a bitmap, is a raster graphics image file format used to store bitmap digital images, independently of the display device, especially on Microsoft Windows and OS/2 operating systems. 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 bitmap image file consists of fixed-size structures as well as variable-size structures appearing in a predetermined sequence. Many different versions of some of these structures can appear in the file, due to the long evolution of this file 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).
Associated programs Microsoft Paint, Adobe Photoshop, Paint Shop Pro, the GIMP, GraphicConverter, Helicon Filter, ImageMagick, Inkscape, IrfanView, Pixel image editor, Paint.NET. Axialis IconWorkshop, IcoFX, IconBuilder, Microangelo Toolset, Greenfish Icon Editor Pro, GIMP, ImageMagick, IrfanView, ResEdit.
Wiki https://en.wikipedia.org/wiki/BMP_file_format https://en.wikipedia.org/wiki/ICO_(file_format)