Does converting to PNG reduce quality?

No. PNG is lossless, so the pixels are preserved exactly as decoded from your BMP file.

Are my images uploaded to a server?

No. This conversion runs entirely inside your browser, so the image data never leaves your device.

Can I convert several images at once?

Yes. Add multiple files and they are processed one after another, with a queue showing the status of each.

BMP to PNG

Convert BMP images to PNG.

Free

Drag & drop your file here

Choose File

BMP → PNGUp to 50 MB per file

About bmp to png

Turn BMP images into PNG files right in your browser. PNG keeps every pixel while cutting the file size of a BMP. Add as many images as you like — each one is converted separately and can be downloaded on its own or together as a ZIP.

How it works

1Add one or more BMP images by dragging them in or choosing files.
2Pick the output quality — higher quality means a larger file.
3Convert, then download each PNG file or the whole set as a ZIP.

Frequently asked questions

Does converting to PNG reduce quality?: No. PNG is lossless, so the pixels are preserved exactly as decoded from your BMP file.
Are my images uploaded to a server?: No. This conversion runs entirely inside your browser, so the image data never leaves your device.
Can I convert several images at once?: Yes. Add multiple files and they are processed one after another, with a queue showing the status of each.

Related tools

This tool runs entirely in your browser — your file is never uploaded, and the result is discarded when you clear it or close the tab. Read more.