Why BMP Files Are So Big and What to Use Instead
BMP is simple but wasteful. PNG keeps the quality and drops the bulk.
What is the BMP to PNG Converter?
BMP files store pixels with little or no compression, so they are huge. This tool decodes your BMP in the browser and saves it as a PNG, which keeps every pixel but compresses the data far better. BMP decoding depends on browser support, so a current browser works best.
How to use it
- Upload a BMP image
- Set the scale if needed
- Download the PNG
Worked example
At 100 percent scale, a BMP becomes a same-size PNG that is usually a fraction of the original file size, with identical pixels.
Should I keep BMP originals?
No need for everyday use. Keep a PNG copy instead, which is smaller and far more compatible.
Frequently asked questions
Is BMP to PNG lossless?
Yes, PNG stores the decoded BMP pixels without loss, only with better compression.
Why are BMP files so large?
BMP rarely compresses pixel data, while PNG compresses it losslessly.