Free Online BMP to ICO Converter

Our image converter tool can quickly convert your BMP to ICO while maintaining the highest level of quality and can accept up to 20 files at one time using our batch image file processor. When your ICO image files are ready, you can either download them individually or, for convenience, combine them within a ZIP file.

Select File(s)

Or drag and drop your files here to upload.
A maximum of 20 files can be uploaded at once.

Please note: Your BMP file, once uploaded to our server, will be deleted 15 minutes after upload, so please download your converted BMP file before this time.

Once you've selected your BMP files for upload, our image converter tool will provide you with the option to customize the processing of your images. To configure this, once you have selected an image, you will see a button, which you can click to reveal a set of image conversion options. These options include the ability to resize and rotate your image and to apply a grayscale or negative filter to your BMP.

How to Convert your BMP to ICO Online?

Here are two simple steps to convert your BMP to ICO using our fast and free BMP converter tool.

Upload your BMP file

Click the "Upload a BMP File" button, then select a BMP to upload. The maximum file size is 100MB.

Download your ICO

Click the download link to receive your ICO file.

Frequently Asked Questions

How can I convert my BMP file to ICO?

First, click the "Upload..." button and select your BMP file to upload. Your BMP file will be uploaded to our servers. When the BMP to ICO conversion has completed, you can download your ICO file right away.

How long does it take to convert my BMP to ICO?

We aim to process all BMP to ICO conversions as quickly as possible; this usually takes around 5 seconds; however, this can be longer for certain files, so please be patient.

How accurate is the BMP to ICO conversion?

We aim to provide the best conversion experience. Our tools are under constant review and development, with new features being added every week.

Is there any loss in quality when converting my BMP file?

If you are converting your BMP file to a format that implements lossy compression, then yes, the quality will be reduced; however, the loss in quality is usually not noticeable and can result in much smaller file sizes.

Will the conversion affect the resolution of my converted BMP file?

No. When converting your BMP file, our tool will not perform any resizing of your image, and the resulting file will have the same resolution as your uploaded BMP file.

File format information for BMP and ICO

Extension	BMP
Full Name	Bitmap Image File
Type	Image
Mime Type	image/bmp
Format	Binary
Opens With	Paint.Net

BMP files are used to store bitmap images in a simple and uncompressed manner. Introduced by Microsoft in the 1980s as a standard image format for use with their Windows operating system, the format has evolved over the years and is still relevant today.

Due to the uncompressed nature of BMP files, they can quickly grow in size when using high resolutions. Modern formats such as PNG and JPEG can be used as an alternative when dealing with larger images or images where transparency is a requirement (PNG only).

The BMP format supports different pixel colour depths, allowing creators to minimise file sizes if their content has a lower colour depth. Due to their age and popularity, BMP files can be opened in most modern image editing applications without requiring conversion tools.

Extension	ICO
Full Name	Icon
Type	Image
Mime Type	image/x-icon
Format	Binary

An ICO file is a bitmap graphics format first introduced as part of the Windows operating system as a means of assigning a user-friendly visual indicator for applications that run on the operating system.

Multiple images can be stored within a single ICO file; these images can be of varying sizes and colour depths, with the operating system choosing the most appropriate size when rendering an icon for a specific task.

As the ICO format has been around for many years and is still used today not only by Windows but also by other platforms, it is well supported with many 2D graphics applications able to export to the ICO file format.

Information for converting from BMP to ICO

Our BMP imaging tool will accurately convert your BMP file into a ICO image file using our high-quality internal 2D rendering to create your final ICO ready for download. Your BMP file will be analysed pixel by pixel in order to produce the most accurate conversion possible.