Convert ICO to BMP
Free, fast ICO → BMP. No watermarks, no sign-up.
How to convert ICO to BMP
1. Upload ICO
Drop your ICO file into the converter above.
2. Confirm BMP
Output is already set to BMP. Adjust only if you need to.
3. Download
Convert and download your BMP file instantly.
Format Details
ICO
ICO is the Windows icon file format used to display icons for applications, files, folders, and shortcuts in the operating system. It can contain multiple image sizes and color depths within a single file, ensuring icons look sharp at different display scales and DPI settings. ICO files are also used as website favicons — the small icon displayed in browser tabs, bookmarks, and address bars.
imageBMP
BMP (Bitmap) is one of the oldest raster image formats, developed by Microsoft for the Windows operating system. It stores pixel data in an uncompressed or minimally compressed form, resulting in large file sizes but perfect lossless quality. BMP is widely supported across Windows applications and is commonly used as an intermediate format in image processing workflows.
imageConverting ICO to BMP: what actually changes
ICO to BMP is one of the conversions this site performs, but the two formats are not interchangeable containers. Here is what the file keeps, what it loses, and how to get a result you can use.
What .ICO and .BMP each hold
.ICO is a image format built for sharing, editing or publishing a picture, storing pixels, dimensions and colour depth. .BMP is a image format built for sharing, editing or publishing a picture, storing pixels, dimensions and colour depth. Converting between them is a decision about which of those two jobs the result needs to do.
What changes in the conversion
Both files belong to the image category, so this is a like-for-like repackage: the same kind of content, stored in a different container. What changes is how .BMP encodes pixels, dimensions and colour depth — not what the file is about.
Quality and file size
Both .ICO and .BMP are lossless, so the content itself survives the trip intact. The main difference is how efficiently each format packages pixels, dimensions and colour depth — which is what changes the file size.
When this conversion is the right one
Reach for .BMP when the software, device or platform you are sending to expects it — the content is the same image, only the packaging differs. The reverse direction works the same way, so you can always convert back from .BMP to .ICO using the same tool.
Tips for a clean ICO to BMP conversion
Start from the original file
Convert the .ICO you started with, not an earlier .BMP output. Every extra round trip costs quality and can accumulate formatting drift.
Check the real type, not the extension
Image/x-icon becomes image/bmp. If a file was renamed rather than converted, it will fail to open — rename it back to its true extension before uploading and the conversion will recognise it.
Watch transparency and animation
If the .ICO has a transparent background or animation, confirm .BMP supports it. Where it does not, the background is flattened onto a solid colour and only the first frame survives.
Limits worth knowing
Uploads are capped per file (30 MB, or 100 MB for video) and processed temporarily — nothing is kept as a permanent copy. For huge image files, split or compress the source first.
Frequently Asked Questions
How do I convert ICO to BMP?
Upload your ICO file on Convertek, select BMP as the output format, then click Convert. Your BMP file will be ready to download instantly.
Is the ICO to BMP converter free?
Yes. Converting ICO to BMP on Convertek is completely free with no watermarks. Fair upload limits apply (typically 30 MB per file).
Is my file kept after conversion?
No. Files are processed temporarily and not stored permanently. Converted downloads are available only in your browser session.
What is the difference between ICO and BMP?
ICO and BMP are different file formats with distinct use cases. Converting between them lets you use your file in software or workflows that require the BMP format.