How to convert BMP to PNG
- Add your BMP images. Drag them onto the box above or click to browse, you can add a whole batch.
- Convert. Press Convert to PNG.
- Download. Save each PNG file, or grab them all as one ZIP.
Why convert BMP to PNG?
Convert bulky BMP bitmaps to compact, lossless PNG, smaller files with no quality loss, plus transparency support.
What is BMP?
BMP is an uncompressed bitmap format. It preserves full quality but produces very large files, so it’s rarely used for sharing online.
What is PNG?
PNG is a lossless image format with full transparency support. It keeps every pixel perfect, which makes it ideal for logos, icons, screenshots and graphics with sharp edges, though files are larger than JPG.
How the formats compare
| Format | Compression | Transparency | Animation |
|---|---|---|---|
| PNG | Lossless | Yes | No |
| JPG | Lossy | No | No |
| WebP | Either | Yes | Yes |
| GIF | Lossless, 256 colours | Yes, 1-bit | Yes |
| AVIF | Either | Yes | Yes |
| BMP | Uncompressed | Rarely | No |
GIF transparency is the odd one out. A pixel is either fully visible or fully invisible, with nothing in between, which is why GIF logos often show jagged edges against a background they were not designed for. PNG and WebP both store 256 levels of transparency instead, so their edges blend properly.
Frequently asked questions
Is it really free?
Yes. No sign-up, no watermark, and no limit on how many files you convert.
Can I convert in bulk?
Yes, add many BMP files at once and download them together as a ZIP.
Does converting to PNG add transparency?
No. PNG supports transparency, but your BMP file has none to carry over, so the result is fully opaque. You would need to remove the background separately.
What happens to my EXIF and location data?
It is dropped. The image is redrawn to a canvas and re-encoded, which carries the pixels across and leaves the metadata behind, GPS coordinates included.
Related converters: JPG to PNG · WebP to PNG · AVIF to PNG · GIF to PNG