Make a PNG from one browser-decodable BMP. Check output dimensions and choose whether to retain available transparency or add a solid fill.
Use PNG for bitmap artwork or screenshots whose decoded pixels should avoid another lossy encode. If the browser decodes the BMP as opaque, the conversion cannot infer a transparent background.
Your input stays on this device for this operation. We don’t upload or store it.
Use PNG for bitmap artwork or screenshots whose decoded pixels should avoid another lossy encode. If the browser decodes the BMP as opaque, the conversion cannot infer a transparent background.
Use lossless encoding for the rendered pixels.
Keep available transparency or fill it with a color.
Choose one BMP file
Keep PNG selected and choose Transparency
Review the dimensions and download the PNG
Browser-decodable BMP → PNG by default
Convert a BMP diagram to PNG for a document editor that accepts PNG.
An opaque white pixel stays white. Use the color-based background remover if white pixels need to become transparent.
