Convert BMP to PNG
Drop BMP files and download lossless PNGs at the same dimensions. BMP stores pixels uncompressed, so the files are large and awkward to upload. PNG keeps every pixel but compresses losslessly, which usually makes the result much smaller.
PNG suits the content BMP is often used for: screenshots, diagrams, UI captures, logos, and flat graphics with sharp edges. For photographs, WebP or JPEG would shrink the file further.
What you get
- Lossless output. No compression artifacts; the pixels match the BMP.
- Smaller files. PNG is usually far lighter than an uncompressed BMP.
- Sharp edges kept. Good for text, lines, and flat color.
Decoding note
Standard BMP files decode directly in the browser. Some older or uncommon BMP variants are handled by a built-in decoder that loads once per tab the first time you convert one. Width and height are preserved either way.
Batch and privacy
Add multiple files, convert, and use Download all as ZIP for the whole set. Conversion runs in your browser through Web Workers, in parallel; nothing is uploaded, and metadata is dropped when the image is re-encoded.