Convert BMP to PNG
Identical pixels at a fraction of the bytes. The default correct destination for any bitmap file.
Runs in your browser. Your file never leaves your computer.
- QualityPixel-identical
- SizeTypically 3 to 10× smaller
- DownsideNone; PNG strictly wins
- TimeAs fast as the file reads
A BMP stores pixels raw, which made sense when CPUs were slow and stopped making sense twenty years ago. PNG holds the identical image losslessly at a fraction of the size; there is no downside and no quality decision to make. Old screenshots, exported frames, scanner output and Paint-era files all take the same one-way trip. The conversion runs in your browser and is limited mostly by how fast your disk hands over the bloated original.
Questions
Is anything ever lost going BMP to PNG?
No. PNG compression is lossless; decoding the PNG reproduces the BMP's pixels exactly.
Why did BMP files even exist?
Simplicity: early Windows drew them straight into memory without decompression. Storage was the price, and storage stopped being cheap to waste.
Does this handle huge BMPs?
Yes, within your browser's memory; even large scans convert in seconds.
Related conversions
- BMP to JPGPhotographic bitmaps drop from absurd to ordinary: a 24 MB file becomes a 1 MB JPG that mails and uploads.
- BMP to WebPLossless for graphics, quality 82 for photos, chosen automatically, always a fraction of the bitmap.
- BMP to AVIFThe two extremes of image storage meet: raw bitmaps become the smallest files modern browsers decode.
- BMP to PDFFaxes, scans and legacy exports live as BMPs; filing systems want PDFs. One page, assembled locally.
- HEIC to PNGHEIC to PNG keeps every pixel exactly, for editing, documentation or archiving. Location data is stripped on the way.
- JPG to PNGA lossless container for further editing. Fair warning: photos get big, and no JPG artifacts are healed.
Part of convert images in your browser. Every other conversion is on the conversions index.