Bitmap to PNG Converter
Quickly convert your BMP images to PNG format with advanced transparency controls. Upload multiple files, preview results, and download them all at once.
Drag & Drop BMPs Here
Only BMP files are supported. Max 10MB per file.
Or try with these examples
Loaded Images
| Preview | Image Info | Original (BMP) | Converted (PNG) | Size Change |
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Conversion Settings
PNG Transparency Options
Use this % to match similar colors for transparency.
Improve the edges along transparent areas by making them translucent. Radius of edge smoothing.
Daily Usage
0 / 100Professional Bitmap to PNG Conversion
The ultimate tool for converting BMP files to high-quality PNGs with advanced transparency controls.
Advanced Transparency Control
Easily remove backgrounds from BMP images. Select any color to make transparent, adjust tolerance for perfect results, and use our 'Outer Pixels' algorithm for clean subject isolation.
Private & Secure
Conversion happens entirely in your browser. Your images are never uploaded to any server.
High Fidelity Output
Maintain pixel-perfect quality during conversion from BMP to PNG. Optional compression for smaller file sizes.
Batch Processing
Convert dozens of BMP files to PNG simultaneously and download them all as a single ZIP archive.
Frequently Asked Questions
How do I make the BMP background transparent?
Enable the 'Make PNG Transparent' option, select the color you want to remove (e.g., white), and adjust the tolerance. You can also use 'Outer Pixels' to target only the background.
Is the conversion quality preserved?
Yes, BMP and PNG are both lossless formats. The conversion is pixel-perfect unless you enable the optional compression setting.