Convert BMP to ICO

Easily convert your BMP files to ICO format online.

Or drop files here

This free online tool lets you convert your files from BMP to ICO format quickly and easily. You can also batch convert BMP to ICO format by uploading multiple BMP files above.

How to convert BMP to ICO?

  1. Drag and drop your BMP files in the upload box above
  2. Click on the blue "Convert to ICO" button to start conversion
  3. Once the conversion finishes, click the “Download” or “Download All” (Zip archive of all files) to download your ICO files.

What file types are supported?

This BMP to ICO converter supports conversion of BMP files such as .bmp, .dib to ICO image format. Max file size supported is: 1GB.

What is a BMP (Bitmap) file?

Bitmap (BMP) is a pixel-based file format that stores two-dimensional images, generally without any compression. BMP utilizes a dot matrix data structure called raster graphics, which establishes the color depth of the image. BMP is mostly used for digital publishing of photographs. However, due to the lack of compression, BMP files are usually large.

How to open a BMP file?

BMP can be device-dependent or independent. BMP opens readily in the Microsoft Paint application and is often associated with Microsoft operating systems. Despite the association with Microsoft, a device-independent BMP, or DIB, can open on almost any device, operating system, or application. 


In addition to opening BMP files, many applications can be used to create them, such as Adobe Illustrator. Should you need to convert the BMP into a vector-based image, then consider using CorelDRAW. Other applications that can open BMP files include Adobe Photoshop, Microsoft Photos, Apple Preview, Apple Photos, and ColorStrokes.


Developed by: Microsoft Corporation

Initial Release: 20 November 1985

Useful links:

https://en.wikipedia.org/wiki/BMP_file_format

https://docs.microsoft.com/en-us/windows/win32/gdi/bitmaps


What is an ICO file?

ICO files contain pixel-based images that can have up to 256 x 256 pixels, 24-bit color, and 8-bit transparency. ICO files offer a convenient place to store and scale the images needed to display the icons so that Windows users can associate an image with an application.

How to open an ICO file?

Use Windows IconMaker to open, edit, and create an ICO file. CorelDRAW is an excellent program for opening, editing, and creating ICO files. To convert ICO files, consider using our online ICO Converter. Often, ICO files are converted to and from other file types to use certain images as icons or to save the icon image into an editable or portable format.


A popular program for manipulating ICO files is GNU Image Manipulation Program (GIMP). ICO is supported by Mac, Linux, and Windows operating systems. Other programs that can open ICO files include Microsoft Paint, Apple Preview, or IrfanView.


Developed by: Microsoft

Initial Release: 20 November 1985

Useful links:

https://en.wikipedia.org/wiki/ICO_(file_format)

https://www.webdesignerdepot.com/2009/03/operating-system-interface-design-between-1981-2009/

Convert Your BMP files to other formats

FreeConvert.com can convert your BMP files to these other formats:

Convert other files to ICO format

FreeConvert.com can convert your other files to ICO format: