PNG to BMP Converter

Uncompressed Bitmap Conversion

Convert PNGs to high-quality BMP files without server uploads. While PNG is ideal for web use due to its compression, specific legacy software, industrial equipment, and older operating systems often require the raw, uncompressed data found in Bitmap (BMP) files.

This tool performs a pixel-perfect transformation. It decompresses your PNG image and maps it to the standard Windows Bitmap format. Because this process happens entirely in your browser, your sensitive data remains private—no files are ever transmitted to a remote server.

Understanding the Format Change

Switching from PNG to BMP involves removing lossless compression. Expect a significant increase in file size (often 10x or more). This is normal and necessary for applications that cannot process compressed image streams or require specific header information found only in BMPs.

Frequently Asked Questions

Can PNG be converted to BMP?

Yes. Our tool decodes the compressed PNG data and saves it as a raw .bmp file instantly within your browser. This restores the image to an uncompressed state ready for legacy applications.

Why use BMP instead of PNG?

BMP is required for compatibility with legacy software, specific industrial hardware (like CNC machines), and older operating systems that cannot read compressed PNGs. It is also used in some print drivers that require raw pixel maps.

Is a PNG file a bitmap?

Yes, both are raster formats (grids of pixels). However, PNG uses sophisticated compression to save space, while the BMP format typically stores raw, uncompressed pixel data, making it less efficient but easier for simple software to read.

What are the disadvantages of BMP file?

The primary disadvantage is file size. Lacking compression, BMPs take up significant storage space and are too heavy for website use or email sharing. They also lack support for advanced features like color profiles found in modern formats.

Is BMP larger than PNG?

Yes, much larger. Because BMP does not use compression, converting a PNG to BMP often results in a file that is 10 to 50 times larger than the original, depending on the complexity of the image.