Convert BMP to PNG losslessly. Better compression than BMP with full lossless quality. Modern format with universal support.
PNG offers what BMP offers — true lossless quality — but with proper compression. A photographic BMP might be 10× smaller as PNG; for graphics with flat colors, the savings are even bigger.
Use PNG when you need to keep every pixel exactly but want a modern, well-supported file format.
Convert BMP to PNG when you need lossless quality preserved (PNG is genuinely lossless; JPG is not) but want a much smaller file than BMP. PNG also supports transparency (BMP technically can but rarely does), modern color profiles, and metadata.
Most online BMP to PNG converters require uploading your files to their servers. We don't. The conversion happens entirely in your browser using the native Canvas API. Your images never travel over the network.
Open your browser's developer tools, watch the Network tab, and convert a file — you'll see code being downloaded but no images being uploaded. Read our take on why client-side image processing matters.
Yes. Free forever, with no signup, watermarks, or file count limits. Same as all our other tools.
No. The conversion happens entirely in your browser using the Canvas API. Your files never leave your device.
Yes. Drop dozens or hundreds of files and download them all as a ZIP. The only limit is your computer's memory.
Up to 100 MB per file. Since processing is local, the practical limit depends on your device.