Convert Images to BMP Online

BMP output stores the decoded image as bitmap pixels. It does not restore detail already lost in a JPEG, and resizing can change pixels. Files are often larger than compressed image formats.

32-bit BMP files support alpha transparency, but support varies by application. For transparent images, PNG is often a better choice. Standard 24-bit BMP does not support transparency.

BMP does not support animation. If you convert an animated GIF to BMP, only the first frame will be preserved. Use GIF or WebP for animated images.

BMP supports various color depths: 1-bit (monochrome), 4-bit (16 colors), 8-bit (256 colors), 16-bit, 24-bit (16.7 million colors), and 32-bit (with alpha). 24-bit is most common for photos.

Yes, you can convert up to 20 images to BMP at once. Simply upload multiple files and download them all as a ZIP archive when conversion is complete.

Yes! You can optionally resize images during conversion. Choose from preset widths (1920px, 1200px, 800px, 640px) or enter a custom width. The tool maintains aspect ratio and only downscales - it won't upscale small images. You'll see the converted file size before downloading.

Yes, free with no hidden costs, watermarks, or account requirements. All processing happens in your browser, so there's nothing to pay for.

This tool processes selected files in your browser without uploading them to our application server.