Convert BMP to PNG

Convert your bitmap BMP files, often large and uncompressed, into lightweight lossless PNG. Batch processing directly in your browser.

Example:
Drag and drop your BMPs here, or click to browse. 60 MB max per file.

Why convert BMP to PNG?

The BMP format usually stores the image without any compression, which creates very large files that are poorly suited to the web or email sharing. PNG applies lossless compression: the quality remains pixel-for-pixel identical, but the file is significantly lighter and much better supported by modern browsers and tools.

Will I lose quality by converting my BMP?

No, converting to PNG is lossless: every pixel of the original image is kept exactly as it is. Only the file size changes (usually in your favor), not the visual quality.

Can I convert several BMPs at once?

Yes, select or drag and drop multiple BMP files at once: each one is converted independently and you can download each resulting PNG separately.

100% local processing in your browser via WebAssembly: your images never leave your device.