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Convert BMP to ICO
BMP is uncompressed, so it wastes space and is impractical on the web. ICO serves as your website’s favicon or a Windows icon and holds sizes from 16 to 256 pixels in one file.
- Free
- No sign-up
- Batch conversion
Why convert BMP to ICO?
To convert BMP files to ICO, drop them on the counter above.
Most files convert in seconds: no queue, no email address, and the ICO result saves straight to your computer or phone.
How to convert BMP to ICO
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Add your BMP files
Drag your BMP files onto the counter, pick them with Choose files or paste from the clipboard with Ctrl+V. You can add several at once.
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Check the settings
The defaults suit most cases. Change quality, size or other options if you like; after a change, one click converts again.
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Conversion starts by itself
Each file is converted to ICO and its row is stamped CONVERTED.
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Download your ICO file
Get the file with Download. With several files you can download them all as one ZIP.
BMP vs ICO
| Property | BMP | ICO |
|---|---|---|
| Full name | Windows Bitmap | Windows Icon |
| Type | Image | Image |
| Compression | Lossless | Lossless |
| Transparency | No | Yes |
| Animation | No | No |
| Vector | No | No |
| Multiple pages | No | Yes |
| Created by | Microsoft | Microsoft |
| Year | — | 1985 |
| Extensions | .bmp .dib | .ico |
| MIME | image/bmp | image/x-icon |
About the formats
BMP
Windows Bitmap
BMP is the native bitmap format of Windows. It usually stores pixels with no compression at all, so it is lossless but files are very large.
ICO
Windows Icon
ICO is the format for Windows icons and website favicons. One file can hold several sizes, from 16×16 up to 256×256.
Frequently asked questions
Is converting BMP to ICO free?
Yes, completely free. No account, no daily limit, no watermark and no queue.
Does it work on a phone?
Yes. It works on iPhone, iPad and Android, with no app to install.
Is there a file size limit?
There is no size limit set by us. Files of hundreds of MB convert too; very large files take longer and are handled more comfortably on a computer than on a phone.
Other conversions
| Family | Give | → | Get | What you gain |
|---|---|---|---|---|
| ICO | BMP | for legacy Windows software · transparency is filled | ||
| BMP | JPG | small photo that opens anywhere · smaller file | ||
| BMP | PNG | lossless, crisp edges | ||
| BMP | WEBP | small file for the web | ||
| BMP | AVIF | smallest image file | ||
| BMP | GIF | plays in every chat | ||
| BMP | TIFF | print and archive quality | ||
| BMP | gathered in one PDF | |||
| JPG | ICO | favicon and Windows icon · photo as it is | ||
| PNG | ICO | favicon and Windows icon · screenshots and logos | ||
| WEBP | ICO | favicon and Windows icon · images saved from the web | ||
| AVIF | ICO | favicon and Windows icon · next-gen image opened | ||
| GIF | ICO | favicon and Windows icon · the GIF’s first frame | ||
| TIFF | ICO | favicon and Windows icon · scanned pages |