BMP to PNG Converter
Upload a BMP bitmap and download it as a compressed, lossless PNG — converted entirely in your browser.
Last updated: May 30, 2026
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Buy me a coffeeWhat is BMP to PNG Converter?
BMP to PNG converts uncompressed Windows bitmap (.bmp) images into PNG files. PNG uses lossless compression and supports transparency, so it keeps every pixel exactly while producing a much smaller file than the raw bitmap.
This converter decodes your BMP with the browser's image engine and re-encodes it as a PNG. Because the compression is lossless, the image quality is identical to the source. Nothing is uploaded to a server.
How to Use BMP to PNG Converter
Drop a BMP file onto the upload area or click to browse
The image is decoded and re-encoded as PNG instantly
Compare the PNG preview with your original
Click Download to save the PNG
Common Use Cases
- Shrinking uncompressed BMP files without any loss of quality.
- Converting bitmap graphics to a web-friendly, widely supported format.
- Preparing screenshots or icons that need crisp, lossless edges.
- Modernising legacy BMP assets to PNG for the web.
Example Input and Output
A 24-bit BMP graphic converts to a smaller, identical-looking PNG.
logo.bmp (1.8 MB, 24-bit bitmap)logo.png (240 KB, lossless PNG)How This Tool Works
The browser decodes the BMP onto a canvas and exports the canvas as a lossless PNG for download.
Technical Stack
Lossless
PNG keeps every pixel exactly — ideal for graphics, logos, and screenshots.
Privacy
Your image never leaves the browser; conversion is fully client-side.