BMP to PNG Converter
Convert uncompressed BMP bitmaps to smaller, lossless PNG in your browser — free and private.
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About the BMP to PNG Converter
BMP and PNG both store every pixel exactly, but PNG adds lossless compression — so you get the same detail in a much smaller, more portable file that modern apps and websites accept. This tool re-encodes your BMP bitmaps to PNG on your own device, with no upload and no watermark, keeping the image pixel-for-pixel identical.
Frequently asked questions
Is BMP to PNG lossless?
Yes. PNG uses lossless compression, so the converted image is pixel-for-pixel identical to the BMP — just in a much smaller, more widely supported file.
Why is the PNG smaller than the BMP?
BMP stores images with no compression, while PNG compresses the same pixels losslessly. That usually cuts the file size substantially with no change to the image.
Is it private?
Yes. The conversion runs entirely in your browser, so your bitmaps are never uploaded to a server.
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