Why would I need BMP instead of PNG?

Some older Windows software, print workflows, or legacy tooling specifically expects an uncompressed BMP file rather than PNG.

Does BMP output keep transparency?

No. This tool writes 24-bit BMP with no alpha channel — transparent pixels are flattened onto white.

Is the BMP file bigger than the PNG?

Usually, yes. BMP output here is uncompressed, while PNG uses deflate compression.

What is validated before conversion?

The file must actually be a PNG — the tool checks the PNG signature bytes, not just the filename or extension, before decoding.

Are my files uploaded?

No. Conversion runs locally in your browser and does not upload your file to Looty Tools servers.

Illustration of a PNG file card turning into an uncompressed bitmap grid labeled BMP

Image guides

How to Convert PNG to BMP in Your Browser

Converting a PNG to BMP produces an uncompressed 24-bit bitmap that older Windows software and some print or legacy pipelines expect. This guide covers the steps and what to know about transparency and file size.

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Open PNG to BMP →

Step-by-step conversion

Open /tools/png-to-bmp.
Choose a PNG file — the content is validated as real PNG data before conversion.
Select Convert & download.
Save the .bmp file from your browser downloads.

Transparency and file size

BMP output here is 24-bit RGB with no alpha channel, so transparent pixels are flattened onto a white background, the same convention used for JPG output. Because BMP is uncompressed, the resulting file is usually larger than the source PNG.

Privacy

Conversion runs locally in your browser. The file is not uploaded to Looty Tools servers for this workflow.

Convert PNG to BMP FAQ

Why would I need BMP instead of PNG?: Some older Windows software, print workflows, or legacy tooling specifically expects an uncompressed BMP file rather than PNG.
Does BMP output keep transparency?: No. This tool writes 24-bit BMP with no alpha channel — transparent pixels are flattened onto white.
Is the BMP file bigger than the PNG?: Usually, yes. BMP output here is uncompressed, while PNG uses deflate compression.
What is validated before conversion?: The file must actually be a PNG — the tool checks the PNG signature bytes, not just the filename or extension, before decoding.
Are my files uploaded?: No. Conversion runs locally in your browser and does not upload your file to Looty Tools servers.

Related guides

Open the tool

Jump into PNG to BMP when you are ready to process your files.

Open PNG to BMP →

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