How do I convert BMP to ICO?

Upload your BMP file above. It is converted to ICO automatically (change the output format or quality in the Settings tab if you need to), then click Download. There is nothing to install.

Does converting BMP to ICO lose quality?

Each icon size is scaled down from your image and stored without further compression, so small sizes stay crisp.

BMP stores pixels with no compression at all. Files are large, but very old or simple software that can’t read modern formats can usually read a BMP.

What sizes does the ICO file include?

The standard icon sizes of 16, 32, 48, 64, 128 and 256 pixels, skipping any larger than your image. Browsers and Windows pick the best size automatically.

Is the BMP to ICO converter free?

Yes. Convert, preview and download a single result without creating an account. Premium adds batch conversion (many files into one ZIP) and larger uploads.

Convert BMP to ICO — Favicons and Windows Icons

Convert BMP to ICO online to make a favicon or Windows icon in several sizes. No software to install. Preview one free or batch-convert with Premium.

Drop your BMP file or click to browse

Why convert BMP to ICO?

One ICO bundles the standard 16 to 256 px icon sizes (up to the size of your image), ready for a favicon.ico or a Windows shortcut.
Browsers show the ICO as your site’s tab and bookmark icon when you save it as favicon.ico.

What to expect when converting BMP to ICO

Icons are square, so a non-square image is centred on a transparent square. Sizes larger than your image aren’t created, so start from at least 256 × 256 pixels.
Your original BMP file isn’t changed: you download a new ICO copy.

BMP vs ICO

Tính năng	BMP	ICO
Họ và tên	Windows Bitmap	Windows Icon
Origin	Created by Microsoft for Windows	Created by Microsoft for Windows icons
Nén	Uncompressed	Lossless images at several sizes
Transparency	No (in the 24-bit BMPs most apps read)	Yes — smooth, partial transparency
Hoạt hình	Không	Không
Màu sắc	16.7 million colours (24-bit)	Full colour with transparency
Where it opens	Windows and macOS apps, older software and browsers	Browsers (as favicon.ico), Windows and icon editors
Tốt nhất cho	older Windows programs, embedded devices and tools that need raw pixels	website favicons and Windows app or shortcut icons
Main drawback	very large files and no transparency	icons are square and at most 256 × 256 pixels

In short: choose BMP for older Windows programs, embedded devices and tools that need raw pixels; choose ICO for website favicons and Windows app or shortcut icons.

Frequently asked questions

How do I convert BMP to ICO?: Upload your BMP file above. It is converted to ICO automatically (change the output format or quality in the Settings tab if you need to), then click Download. There is nothing to install.
Does converting BMP to ICO lose quality?: Each icon size is scaled down from your image and stored without further compression, so small sizes stay crisp.
BMP or ICO: which should I use?: Use BMP for older Windows programs, embedded devices and tools that need raw pixels. Use ICO for website favicons and Windows app or shortcut icons. Keep in mind the main drawback of ICO: icons are square and at most 256 × 256 pixels.
What is a BMP file?: BMP stores pixels with no compression at all. Files are large, but very old or simple software that can’t read modern formats can usually read a BMP.
What sizes does the ICO file include?: The standard icon sizes of 16, 32, 48, 64, 128 and 256 pixels, skipping any larger than your image. Browsers and Windows pick the best size automatically.
Is the BMP to ICO converter free?: Yes. Convert, preview and download a single result without creating an account. Premium adds batch conversion (many files into one ZIP) and larger uploads.

Bạn có thể làm gì với BMP to ICO

Xem lại các khả năng chính trước khi bạn bắt đầu.

Convert BMP files to ICO online
Bundle standard icon sizes from 16 to 256 px in one file
Switch to any other output format in Settings
Batch-convert many BMP files into one ZIP
Preview the result before you download

Sử dụng công cụ này

Tham khảo cài đặt

Các điều khiển có sẵn cho BMP to ICO.

Cài đặt

định dạng đầu raDanh sách thả xuống: Chooses the file type you download. The page opens on its own output format; switch to any other format before converting.Tùy chọn: JPGPNGWebPAVIFGIFTIFFBMPICOPDF
Chất lượngThanh trượtPhạm vi: 20–100 · Mặc định: 90: For JPG, WebP, AVIF and image-to-PDF output: higher keeps more detail but makes a bigger file; 60–80 suits most photos. Documents (Publisher, XPS, EPS…) become PDFs with every page and sharp text, with no quality setting.
Chế độ không mất dữ liệuBật / Tắt: For WebP and AVIF output: keeps every pixel exactly (best for logos, graphics and transparency) at the cost of a larger file.
Màu nềnBộ chọn màu: For JPG, BMP and image-to-PDF output, which can’t store transparency: the colour that fills transparent areas (white by default).

Chế độ

Tệp đơn lẻ / Hàng loạtDanh sách thả xuống: Xử lý một tệp hoặc một loạt với các cài đặt được chia sẻ. Tải xuống hàng loạt kết quả dưới dạng một ZIP.Tùy chọn: Tệp đơn lẻHàng loạt

Mở công cụ này

Sử dụng miễn phí · Không cần đăng ký · Không có hình mờTải lên được mã hóa trong quá trình chuyển tiếpĐã bị xóa theo chính sách lưu trữ của chúng tôi

Tools for common next steps after BMP to ICO.

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