Convert BMP to PNG
Drop your BMP below. Get a lossless PNG at a fraction of the size.
Drop your files here
or click to browse — up to 50 MB per file
Images, PDFs, Word docs, PowerPoints, audio, and more
Privacy first — most conversions happen in your browser
BMP to PNG: lossless compression without the bloat
BMP and PNG both preserve every pixel perfectly — neither uses lossy compression. The difference is that PNG applies lossless compression algorithms (DEFLATE) that dramatically reduce file size. A 6 MB BMP might become 1-2 MB as PNG with zero quality loss. If you need the exact same image in a smaller file without any quality tradeoff, BMP to PNG is the right conversion.
Private, instant, browser-based
OnlyFiles performs the conversion entirely in your browser using the Canvas API. Your BMP file is loaded locally, rendered to a canvas, and exported as PNG — no upload, no server, no waiting. The output preserves the exact pixel data from your original BMP at a fraction of the file size.
When to use this
- Compress a BMP file without losing any quality
- Convert legacy BMP files to a modern, web-friendly format
- Use a BMP image in software or a CMS that expects PNG
Frequently asked questions
Is BMP to PNG conversion lossless?
Yes. PNG uses lossless compression, meaning every pixel is preserved exactly. The file gets smaller without any quality loss — the best of both worlds.
How much smaller is PNG compared to BMP?
PNG files are typically 50-80% smaller than BMP files of the same image, while maintaining identical quality. The exact reduction depends on image content.
Should I convert BMP to PNG or JPG?
Choose PNG if you need lossless quality or the image has text, logos, or sharp edges. Choose JPG if you want the smallest possible file and the image is a photo.