Convert PNG to BMP
Convert PNG images to BMP bitmap format. Lossless raw output for legacy apps — transparency flattened to your color.
About the PNG to BMP
BMP has no alpha channel, so transparent PNGs are flattened onto the background you pick before writing the 24-bit bitmap. A custom in-browser encoder handles the whole job with zero uploads.
How it works
Your PNG's pixels are decoded and written as a standard 24-bit BMP. Because BMP has no alpha channel, transparent regions are flattened onto the background color you select before writing — white is the usual choice for documents and print pipelines.
How to use it
Drop one .png file, pick a background color for transparent areas, and convert. Download the .bmp and hand it to whatever legacy system is waiting for it.
Supported formats & limitations
Accepts .png up to 30MB; single file per run; output is uncompressed .bmp, so file size grows substantially — that's inherent to the format, not a bug. Semi-transparent edge pixels blend into your chosen background.
Common use cases
The bridge to BMP-only ecosystems: factory machinery UIs, old point-of-sale software, embedded displays, and vintage games or tools. Anywhere the requirement reads 'must be a .bmp', this gets you there from modern assets.
Frequently asked questions
Where are my images processed?
Everything runs locally in your browser via the Canvas API. Your picture never leaves your machine — there is no upload step at all, so processing is as private as working in an offline editor.
Which input formats does PNG to BMP accept?
Common formats are covered: PNG, each up to 30 MB. Paste from the clipboard, drag and drop, or use the select button.
What are the size and batch limits?
One image is processed per run, up to 30 MB — and you can run it as many times as you like. No signup, no counters, and no watermark on results.
Can I fine-tune the result before downloading?
Yes — settings include Background for transparency. Each run regenerates the preview, so you can compare options before downloading.
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