ICO to BMP Converter
Convert ICO images to BMP instantly in your browser. No upload, no account needed — fully client-side and secure.
WebP typically reduces file size by 25-35% compared to PNG with equivalent visual quality.
Frequently Asked Questions
Is my image data safe?
Absolutely. 100% of the conversion processing occurs inside your local web browser sandbox. No file chunks or metadata are transmitted to our servers or stored anywhere externally.
Will transparency be preserved?
Converting to lossless formats like PNG preserves full transparency (alpha-channel). If you are converting to JPEG, any transparent sections are rendered as solid background colors (customizable in output settings).
Can I convert multiple images at once?
Yes, you can drop or select multiple files simultaneously. Our tool processes and triggers the sequential download of all assets with a single click.
About ICO
What is an ICO file? An image file format specifically for computer icons in Microsoft Windows. A single ICO file usually contains multiple sizes (e.g., 16x16, 32x32) of the same image.
How to open an ICO file? Windows Explorer, web browsers, and image editors (sometimes requiring plugins).
Typical use of an ICO file: Windows desktop application icons and traditional website "favicons" (the small icon in a browser tab).
Origin of the ICO file: Introduced by Microsoft with Windows 1.0.
Modern alternatives for ICO: For web favicons, PNG and SVG are the modern standards. For Apple apps, the ICNS format is used.
About BMP
What is a BMP file? An uncompressed raster image format. It stores color data for every individual pixel, resulting in extremely high quality but massive file sizes.
How to open a BMP file? Microsoft Paint, Windows Photos, Apple Preview, and almost any image viewer/editor.
Typical use of a BMP file: Historically used as the standard Windows graphic format. Today, it is rarely used outside of legacy software or specific programming environments.
Origin of the BMP file: Developed by Microsoft in the 1980s for the Windows operating system.
Modern alternatives for BMP: PNG provides the exact same lossless quality but with efficient compression, making files a fraction of the size.