BMP to PNG Converter
Convert bulky BMP bitmaps into compact, lossless PNG files in your browser.
BMP files store every pixel uncompressed, which makes them needlessly large and poorly supported on the web. PNG keeps the same lossless quality but compresses it, often cutting the file size dramatically.
Conversion runs entirely on your device — nothing is uploaded.
How to convert BMP to PNG
- 1Drop your BMP file into the area above — or click to browse.
- 2The output format is already set to PNG. Adjust the quality settings if the format supports them.
- 3Click convert, then download your PNG file. Everything runs locally — nothing is uploaded.
Frequently asked questions
Almost always. PNG applies lossless compression, so a bitmap that takes several megabytes as BMP can shrink to a fraction of that as PNG with no quality loss.
No. Both BMP and PNG are lossless formats, so converting preserves every pixel exactly — you just get a smaller, more web-friendly file.
No. All processing happens entirely in your browser. Your data never leaves your device — nothing is uploaded to any server.
Yes. Once the page has loaded, the tool works completely offline. For the best experience, install PrivaDeck as a PWA from your browser.
Other conversions
Need a different format?
Open the full image converter to pick from PNG, JPG, WebP, AVIF and ICO, convert in batches, and fine-tune quality.
Open the full Image Converter