Free BMP Converter

Drop the JPG or PNG files in the box at the top of this page. BMP is already selected as the output for each one, so press Convert All, then save each BMP or use Download All for one ZIP. It's free and needs no account.

Color pictures become standard 24-bit BMPs with no compression. Grayscale or few-color images can come out as smaller 8-bit or 4-bit files instead, and there's no setting yet to pick the bit depth.

BMP keeps every pixel with no compression, so its size depends on width and height, not on the picture. In our test a 1.80 MB JPG photo of 5376 by 3072 pixels became a 47.25 MB BMP. For a smaller BMP, set a smaller width in Resize first.

Yes. Add your BMPs, open Output Format and choose JPG, PNG, WebP, TIFF or another format, then press Apply to all files and Convert All. For a page that starts on the right format, use the BMP to JPG or BMP to PNG converter.

Not on this page, since the format menu lists image formats only. Convert the BMP to JPG or PNG here first, then add those files to the free Image to PDF tool. That tool takes JPG, PNG, WebP, AVIF and HEIC, but not BMP itself.

BMPs made here can't, because clear areas are filled with a solid color first, white unless you pick another. Going the other way works: a 32-bit BMP with an alpha channel keeps its see-through areas when you convert it to PNG or WebP here.

Yes. BMP is short for bitmap, the Windows image format that uses the .bmp file ending. People also say bitmap for any picture made of pixels, which includes JPG and PNG. This converter opens files ending in .bmp; .dib files aren't accepted yet.

Windows Photos and Paint, Preview on a Mac and most web browsers can show a BMP. If an app or website refuses yours, convert it to JPG or PNG here, since nearly every app accepts those. Nothing needs to be installed to do that.

Yes. There's no sign-up, watermark or daily limit. We log basic usage such as editor time, never file names or contents. Your files are converted by a worker in this tab and never reach our servers; only the image engine is downloaded, once.

Bitmap Image File (BMP) uses uncompressed compression with excellent quality output. It does not support transparency and does not support animation. Typical file sizes are very large.

When you need uncompressed images for Windows applications or system use. Best use cases include windows applications, simple graphics, system icons. When file size matters or for web/mobile applications.

Key advantages of BMP: No compression artifacts. Simple format structure. Universal Windows support. Exact pixel representation. However, keep in mind: very large file sizes, no compression.