Format converter / All converters / BMP to PNG converter
BMP to PNG converter
Old Windows bitmaps are huge and half the web refuses them. Convert to PNG without sending the file anywhere.
Pick a file to start.
The converted preview appears here.
BMP is an uncompressed Windows bitmap: simple, old, and often ten times larger than the same image as PNG. This page decodes the BMP with the browser and re-encodes it as lossless PNG locally.
How to use it
Step 1. Drop a .bmp file
Step 2. Check the preview
Step 3. Download the PNG
Questions
- Is the conversion lossless?
- Yes — PNG is lossless, so the pixels are identical to the BMP.
- Why is my BMP not supported?
- Very unusual BMP variants (rare bit depths or RLE compression) may not decode in the browser. The page tells you when that happens.
- Does it upload my file?
- No. Everything runs in your browser.