BMP to PNG

PNG gives you the same lossless quality as BMP at a fraction of the file size, with the added benefit of transparency support. RelahConvert converts BMP to PNG entirely inside your browser.

How to Convert BMP to PNG Without Uploading

Select your BMP images.
Click Convert.
Download your PNG.

The Best Free BMP to PNG Converter That Doesn't Upload Your Files

PNG gives you the same lossless quality as BMP at a fraction of the file size, with the added benefit of transparency support. RelahConvert converts BMP to PNG entirely inside your browser.

Why Convert BMP to PNG?

Is there any quality loss when converting BMP to PNG?

No — both BMP and PNG are lossless formats. No quality is lost during conversion.

How much smaller will the PNG be compared to the BMP?

PNG is typically 60–80% smaller than BMP for the same image with no quality loss.

Can I convert multiple BMP files to PNG at once?

Yes — batch conversion is fully supported.

Do you store my images?

Never. All processing happens locally in your browser.

Last updated: 2026-05-24