Convert ICO to BMP online in seconds — free, with no sign-up. BMP is lossless and ideal for legacy compatibility; usually better converted to PNG or JPG. Your files are encrypted and deleted automatically after 24 hours.
ICO
Icon — A container format for small icons at multiple sizes, used for favicons and app icons.
BMP
Bitmap — An uncompressed legacy Windows format that produces very large files.
How to convert ICO to BMP
- 1Upload your ICO file
Click “Choose a file” or drag and drop your ICO file onto the page — no sign-up or email needed.
- 2Convert to BMP
BMP is already selected as the output. Open Options to fine-tune quality if you like, then click Convert.
- 3Download your BMP file
Your BMP file is ready in seconds — click Download to save it. Files are automatically deleted after 24 hours.
ICO vs BMP
| ICO | BMP | |
|---|---|---|
| Full name | Icon | Bitmap |
| Type | Raster image | Raster image |
| Compression | Lossless | Lossless |
| Best for | website favicons and Windows app icons | legacy compatibility; usually better converted to PNG or JPG |
Frequently asked questions
Does converting ICO to BMP lose quality?
No. Both ICO and BMP are lossless, so every detail is preserved exactly — the conversion is visually and mathematically identical to the original.
What's the difference between ICO and BMP?
Icon (ICO) is lossless and best for website favicons and Windows app icons. Bitmap (BMP) is lossless and best for legacy compatibility; usually better converted to PNG or JPG. Convert ICO to BMP when you need a raster image for legacy compatibility.
Is the ICO to BMP converter free?
Yes — converting ICO to BMP is completely free. There's no watermark, no sign-up and no email required, and you can convert as many files as you like.
Are my ICO files private and secure?
Yes. Your uploads are encrypted in transit, processed privately, and automatically deleted within 24 hours. We never share, sell or look at your files.
Can I convert ICO to BMP on iPhone, Android, Mac or Windows?
Yes. The converter runs entirely in your browser, so it works on any device — iPhone, iPad, Android, Mac, Windows or Linux — with nothing to download or install.
How long does it take to convert ICO to BMP?
Most files convert in a few seconds. Larger files take a little longer, and your upload speed is usually the limiting factor. There's no queue and no waiting for an email.
What else can I convert ICO files to?
Besides BMP, you can convert ICO to AVIF, GIF, JPG, PDF, PNG, PPM and more — see the full list of ICO conversions below.
Other conversions
Last updated July 2026