How to convert BMP to PNG
- Select Choose files, or drop your BMP images on the box.
- Wait a moment. Each file is converted as soon as it is added.
- Select Download for one file, or Download all for a ZIP.
Why PNG is the better home for bitmaps
BMP stores raw pixels, so files are huge. PNG stores the same pixels with lossless compression: when you open the PNG, every colour is identical to the BMP. That makes PNG ideal for screenshots, icons, diagrams, scans of text and line art, where JPG would add blur around edges. PNG is also understood by every browser, phone, website upload form and editor.
What to expect
Pictures with large flat areas, such as screenshots and charts, shrink the most. Photographs contain noise, so the PNG is smaller than the BMP but still large. If a photo needs to be small, convert it with BMP to JPG instead.
Supported bitmaps
The tool uses your browser’s own decoder, so it reads normal 1-bit, 8-bit, 24-bit and 32-bit BMP files. A damaged or unusual file shows an error rather than a broken image.
Tips
- Shrink photos instead with BMP to JPG.
- Convert scanned pages with TIFF to PNG.
- Pull a PNG out of a Windows icon with ICO to PNG.
- Change a PNG to a format with better compression using PNG to WebP.
Good to know
Each file is converted on its own, so a damaged bitmap never stops the others in a batch. File names are kept, and only the extension changes to .png. The original BMP is never modified, and you can compare the two files side by side to confirm that the pictures match. Because PNG is lossless, you can safely edit and save the file again as often as you like.
Everything runs on your device. Your files are never uploaded.