Convert ICO to BMP

ICO to BMP converter that runs entirely in your browser. 100% free, no signup, no upload — your files never leave your device. One-click batch conversion.

Conversions

Drop any file here or click to browse

All file types supported

About formats

ICO

ICO is the image container format used for Windows icons and favicons. A single ICO file can bundle multiple sizes and color depths so that the operating system can select the best resolution. ICO is still essential for desktop application icons and website favicons.

Developer: Microsoft
Initial release: 1985
Compression: Uncompressed
Color depth: up to 32-bit
Transparency: Yes
Animation: No

Best for

Windows application icons
Website favicons
Bundling multiple icon sizes
Desktop app icon resources
Browser tab favicon images

Pros

+Bundles multiple sizes and color depths in one file
+Essential for Windows app icons
+Supports transparency
+OS selects the best resolution automatically

Cons

−Limited to icon use cases
−Not suited for general photography
−Less universal outside Windows
−No modern compression

BMP

BMP (Bitmap) is a simple, largely uncompressed raster image format native to Windows. BMP stores pixel data with optional Run-Length Encoding, making it trivial to read and write, but produces very large files. It remains useful as an intermediate, loss-free working format.

Developer: Microsoft
Initial release: 1985
Compression: Uncompressed
Color depth: up to 32-bit
Transparency: Yes
Animation: No

Best for

Lossless intermediate image storage
Windows-native graphics workflows
Simple pixel-data interchange
Uncompressed image working copies
Legacy Windows application images

Pros

+Trivial to read and write
+Lossless and uncompressed
+Supports up to 32-bit color
+No decoding complexity

Cons

−Very large file sizes
−No compression by default
−Not suited for web
−No modern features like animation

How to convert ICO to BMP

1
Select ICO files from your computer, Google Drive, Dropbox, a URL, or by dragging them onto the page.
2
Choose bmp — or any other format you need as a result (more than 200 formats supported).
3
Let the file convert, then download your bmp file right away.

ICO vs BMP

Property	ICO	BMP
Compression	Uncompressed	Uncompressed
Transparency	Yes	Yes
Animation	No	No
Color depth	up to 32-bit	up to 32-bit
Open format	Yes	Yes

When to use ICO vs BMP

ICO

Windows application icons
Website favicons
Bundling multiple icon sizes
Desktop app icon resources
Browser tab favicon images

BMP

Lossless intermediate image storage
Windows-native graphics workflows
Simple pixel-data interchange
Uncompressed image working copies
Legacy Windows application images

Use cases for ICO → BMP

Windows application icons
Website favicons
Bundling multiple icon sizes
Desktop app icon resources
Browser tab favicon images
Lossless intermediate image storage
Windows-native graphics workflows
Simple pixel-data interchange
Uncompressed image working copies
Legacy Windows application images

Frequently Asked Questions

Is converting ICO to BMP free?

Yes. This ICO → BMP converter runs entirely in your browser and is completely free — no account, no credits, no watermark.

Which devices and platforms can I use to convert ICO to BMP?

Any modern device with a current web browser: Windows, macOS, Linux, Android, iPhone and iPad. There is nothing to install — the conversion happens locally.

Are my ICO files uploaded to a server?

No. Files never leave your device. The entire ICO → BMP conversion runs locally in your browser, so your data stays private.

Can I convert multiple ICO files at once?

Yes — batch conversion is supported. Add as many ICO files as you like and convert them to BMP in one pass, then download the results together.

What is the maximum file size?

There is no fixed server-side limit because the conversion happens in your browser. Practical limits depend on the available memory and CPU of your device.

Will converting ICO to BMP lose quality?

No. BMP is a lossless format (or used in a lossless mode here), so the original data from your ICO file is preserved bit-for-bit in the converted result.

Will transparency be preserved when converting ICO to BMP?

Yes. Both ICO and BMP support alpha-channel transparency, so transparent areas of your file are kept unchanged in the BMP output.

How will the file size change after converting ICO to BMP?

Both formats use comparable compression, so the BMP output will be similar in size to your ICO file — typically within 10–20% of each other.

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FREE

100% Free

No hidden fees, no subscriptions, and no limits. Enjoy complete access to all features gratis.

SIGNUP

No Signup Required

Start converting immediately without creating an account or sharing email address.

PRIVACY

Private & Secure

Your files never leave your device. All processing is completed locally for maximum privacy.

BATCH

Batch Conversion

Convert multiple files simultaneously to save time. Fast and efficient multi-file queue.

LOCAL

Runs in Browser

Utilizes advanced client-side WebAssembly technology to process files directly inside your tab.

FORMATS

200+ Formats

Supports a wide variety of formats including images, documents, audio, video, and more.

USER REVIEWS

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