BMP to PNG converter
Convert BMP images to PNG right in your browser. Nothing is uploaded, so it’s fast and private.
Drop files inside the box. They stay on your device. How we know
Open in its own tabNothing is uploaded
Files are converted inside your browser tab.
Works offline
Once the page has loaded, turn off Wi-Fi and it still converts.
Free, up to 50 at once
No sign-up, no watermark, no waiting.
How to convert BMP to PNG
- 1
Drop your BMP images into the box, or tap Choose files.
- 2
Check the settings if you like.
- 3
Download each PNG file, or all of them as one ZIP.
About the formats
BMP is an uncompressed Windows bitmap format. Files are large, and many websites don’t accept them.
PNG is a lossless image format with transparency. It is ideal for screenshots, logos and graphics, but photos saved as PNG are much larger than JPG.
Questions
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Updated October 17, 2026