You're in good company:
Zamzar has converted over 510 million files since 2006
Convert different files into black and white
You can use Zamzar to process a wide range of different files - just click on a format to get started:
Why convert BMPs to black and white?
Imagine you’re working with an old bitmap (BMP) image, and it’s taking up far more space than expected. Even though BMPs are known for their high quality, they’re also notoriously large, especially when stored in full colour. Converting your BMP to black and white can dramatically shrink the file size, making it quicker to open, share, or store without sacrificing essential detail.
You might also want a black-and-white BMP for practical or design reasons. Monochrome bitmaps are perfect for icons, logos, or technical drawings where clarity matters more than colour. They print cleanly, scale well, and keep a consistent appearance across different screens and devices.
An online file converter makes it effortless to switch your BMP from colour to crisp black and white, preserving sharpness while cutting down on size. It’s a simple way to make your images lighter, clearer, and more versatile.
Fast Downloads
Zamzar has been around since 2006, and in that time we have worked day and night to make sure your files get converted as quickly as they possibly can.
Secure
All traffic to and from our servers is secured by transport-level security, using 128-bit SSL to encrypt the data sent between your systems and ours.
Very Experienced
We’ve built up quite the armoury of file conversions, with over 1100 different file conversions now supported.
Real-time Conversions
Even though your file is converted in real time, you can still get a copy of the converted file sent to your email address should you need it.