Convert PNG to BMP Online Free
Convert PNG images to uncompressed BMP bitmap format. Required by certain legacy applications, industrial equipment, and development workflows that need raw pixel data.
To convert PNG to BMP, drop your PNG file into the converter. ChangeThisFile creates a 24-bit uncompressed BMP from your PNG image. Transparent areas are rendered on a white background since standard BMP doesn't support alpha transparency. Conversion is instant and runs entirely in your browser.
Convert PNG to BMP
Drop your PNG file here to convert it instantly
Drag & drop your .png file here, or click to browse
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PNG vs BMP: Format Comparison
Key differences between the two formats
When to Convert
Common scenarios where this conversion is useful
Industrial equipment input
CNC machines, laser cutters, embroidery machines, and other industrial equipment often only accept BMP files. Convert your PNG designs to BMP for these systems.
Embedded systems development
Microcontrollers and embedded displays frequently use raw BMP for simplicity. Convert PNG graphics to BMP for firmware and embedded UI development.
Vintage software compatibility
Older versions of Windows software, retro computing projects, and DOS applications work best with BMP. Convert modern PNG assets for these environments.
Image processing research
BMP's uncompressed pixel grid is ideal for academic and research image processing work. No compression artifacts to account for, and the pixel data is easy to read programmatically.
How to Convert PNG to BMP
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1
Select your PNG file
Drag and drop your PNG into the converter, or click browse to choose it. Works with any PNG regardless of color depth or transparency.
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2
Converted to raw BMP
The browser decodes the PNG and writes the pixel data as an uncompressed 24-bit BMP. Transparent areas are composited onto a white background.
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3
Download the BMP
Save the BMP file. Note that it will be considerably larger than the PNG since BMP uses no compression.
Frequently Asked Questions
Significantly larger. A 1MB PNG might become 10-15MB as a BMP. The exact increase depends on the image dimensions. BMP stores 3 bytes per pixel (24-bit) with no compression.
Standard 24-bit BMP does not support transparency. Transparent areas in your PNG are composited onto a white background. If you need transparency in BMP, some specialized software accepts 32-bit BMP with alpha.
The pixel content is preserved losslessly (BMP stores exact pixel values). The only change is that transparent areas become white. No quality is lost for opaque pixels.
PNG and BMP are completely different file formats with different internal structures. Renaming the extension will not create a valid BMP file. You need proper format conversion, which is what this tool provides.
The converter creates standard 24-bit BMP files (8 bits per red, green, and blue channel). This is the most widely compatible BMP format across legacy and modern systems.
Yes. Drop multiple PNG files into the converter and each will be converted to BMP independently.
Yes, perfectly. Pixel art converted from PNG to BMP retains exact pixel colors with no quality loss. BMP is actually well-suited for pixel art due to its uncompressed nature.
No. The entire conversion runs in your browser using JavaScript. Your PNG files are never uploaded to any server, making this safe for any type of image content.
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