Image guides
BMP vs PNG: File Size, Compression, and Use Cases
BMP and PNG can both store images without lossy compression, but PNG adds real compression and much broader web and software support.
Ready to try the tool this guide describes?
File size and compression
BMP typically stores pixels uncompressed, so files are large. PNG uses lossless compression, usually producing a smaller file for the same image with no quality loss.
Compatibility and use cases
BMP is a legacy Windows format with limited web support. PNG is the standard lossless format for the web, screenshots, and general editing, with support for transparency.
When to convert
Use /tools/bmp-to-png when you want a smaller, lossless file that opens reliably in browsers and modern editing tools.
BMP vs PNG FAQ
- Is PNG always smaller than BMP?
- Usually yes, since most BMP files are uncompressed and PNG compresses losslessly.
- Where do I convert BMP to PNG?
- Use /tools/bmp-to-png.
- Does BMP support transparency?
- Some BMP variants can include an alpha channel, which PNG can preserve if the browser decodes it.
- Are conversions local?
- Yes, on Looty Tools dedicated converters.
- Is this conversion lossless?
- Yes — PNG encoding here does not discard image detail.
Related guides
- Convert BMP to PNGConvert a BMP (bitmap) image to PNG locally: choose the file and download a lossless, more broadly supported image.
- BMP to PNG Without UploadingLearn how Looty Tools converts BMP to PNG privately in your browser using native browser image decoding, with no file upload.
- BMP vs JPGCompare BMP and JPG for file size, compression, and compatibility, and see when converting BMP to JPG is the better choice.