ICO to BMP Converter
Convert ICO to BMP in your browser. Free, no signup. Conversion files are not uploaded to Format Convertly servers. Learn the formats, then convert when your workflow needs BMP.
An uncompressed bitmap, the most compatible image format there is.
Choose a file or drag and drop
Drop your ICO file here or
Choose file · Drag & drop · Public file link
- Processed on your device
- No conversion file stored on our servers
- Maximum file size: 100 MB
Conversion runs in your browser. Files are not uploaded to Format Convertly servers.
Format comparison
ICO → BMP
- Transparency
- No alpha channel
- No alpha channel
This is a format comparison, not a live conversion preview. Convert a file above to see the real output.
Conversion Settings
Customize the output to match your needs.
Convert Quality
92%Quality slider applies when the target is JPG, WebP, or AVIF.
Resize Image (Optional)
Advanced settings
Additional Options
- Maintain aspect ratio
- Remove metadata (EXIF)Browser re-encoding writes a new file without the original EXIF block.
How to Convert ICO to BMP
Add your ICO
Drop a ICO file into the browser panel. Nothing is sent to a remote queue.
Confirm settings
Review optional quality/size settings, then confirm BMP as the output.
Download BMP
Convert locally and download the BMP file when processing finishes.
Why Convert ICO to BMP?
Private by design
ICO → BMP runs in your browser. Files are not uploaded to a remote conversion queue.
Ready for the next step
Convert when a site, editor, or teammate expects BMP instead of ICO.
Preserve detail
BMP: varies. Typically lossless or lightly transformed for editing and archival use.
Transparency aware
ICO is commonly used for Windows application icons and Classic favicon.ico for websites.
ICO vs BMP
A quick side-by-side before you convert — deeper comparison lives on the full guide.
| Feature | ICO | BMP |
|---|---|---|
| Kind | raster image | raster image |
| Compression | varies | varies |
| Lossy / lossless | Lossless / not lossy | Lossless / not lossy |
| Transparency | Supported | Not supported / N/A |
| Best for | Windows application icons; Classic favicon.ico for websites | Legacy Windows assets; Simple pixel-perfect game or UI sprites from old toolchains |
| Typical size | Small — usually under a few hundred KB | Very large — megabytes even for modest resolutions |
| Browser / web support | Favicon ICO is widely requested; not used as a general <img> format | Technically displayable in some browsers but never preferred — convert first |
| Compatibility | Native on Windows; browsers still request /favicon.ico on many sites | Opens everywhere on Windows desktops and in most desktop editors; convert before web or mobile sharing because files are huge |
Choose ICO when…
- Windows application icons
- Classic favicon.ico for websites
- Shortcut and installer branding
- Multi-resolution desktop icons
Choose BMP when…
- Legacy Windows assets
- Simple pixel-perfect game or UI sprites from old toolchains
- Teaching raw bitmap concepts
- Quick conversion source into PNG/JPG
What happens to image quality?
Transparency in ICO will be flattened when saving BMP. BMP compatibility: Opens everywhere on Windows desktops and in most desktop editors; convert before web or mobile sharing because files are huge An uncompressed bitmap, the most compatible image format there is.
Tip
Keep an original copy of your ICO file if you may need to reconvert later.
Does BMP support transparency?
BMP does not keep transparency — BMP does not support an alpha channel. Convert to PNG, WebP, AVIF, or SVG when you need transparent backgrounds.
BMP format guide →What happens to transparency when converting to BMP?
ICO can include alpha, but BMP cannot. Transparent regions are flattened onto a solid background during conversion.
BMP format guide →ICO · BMP
Related converters ICO
Related converters BMP
Frequently Asked Questions
More on quality loss: conversion quality guides · problem-solution guides
Does converting ICO to BMP reduce quality?
Often no for lossless or remux-style paths. Quality drops when you re-encode with lossy settings, downscale, or flatten features like transparency.
Can you recover quality after converting?
Not from a lossy output alone. Return to the original master (or a better source). Converting to a lossless format does not resurrect discarded detail.
Where can I learn more about conversion quality?
Browse Format Convertly’s Quality guides for topics like whether conversion reduces quality, JPG↔PNG myths, WebP/MP3/MP4 tradeoffs, recovery limits, and generational loss — each links to the right converter.
What is a ICO file?
ICO is a Windows icon container that can hold multiple raster sizes for app and favicon use. ICO packages one or more bitmaps (and sometimes PNGs) so Windows and browsers can pick the right resolution for a shortcut or favicon. Design in PNG/SVG first, then build an ICO when a platform still requires the classic container.
Is ICO lossy or lossless?
ICO is typically lossless or non-destructive in common use (varies).
What is a BMP file?
BMP is an uncompressed (or lightly packed) Windows bitmap raster image. BMP is a simple pixel grid historically tied to Windows Paint and older games. Files are easy to decode but enormous compared with PNG or JPG, so convert BMP when you need to share, archive, or publish the image.
Is ICO to BMP private?
Yes. The file is processed locally in your browser and is not uploaded to Format Convertly servers.
Will quality always be perfect?
It depends on the formats. Lossy sources cannot regain discarded detail; complex documents may need cleanup after conversion.
Ready to Convert Your Files?
ICO to BMP privately in your browser.