Convert BMP to PNG
Turn old BMP images into PNG files with crisp edges and transparency.
Runs on your device. Your files are never stored.
Short answer
To convert BMP to PNG, add your files to FileFleet, adjust the quality if you like, and download the PNG files, zipped if there are several. It runs in your browser, so nothing is uploaded. In our test, a 2400 × 1350 photo went from 9.27 MB to 4.01 MB as PNG.
- Price
- Free
- Account
- None needed
- Your files
- Never stored
- Limits
- No daily limit, no watermark
- You get
- PNG images, zipped if there are several
- Works on
- Phones and computers
BMP vs PNG
PNG keeps every pixel exactly like BMP does, but compresses them losslessly: the same image in a much smaller file.
| Feature | BMP | PNG |
|---|---|---|
| Full name | Windows Bitmap | Portable Network Graphics |
| Introduced | 1985 | 1996 |
| Compression | Usually none | Lossless |
| Transparency | Rarely supported | Yes |
| Animation | No | No (the APNG variant is rarely used) |
| Best for | Old Windows software that needs raw pixels | Screenshots, logos, text and graphics with sharp edges |
| Opens in | Windows and most image apps; not accepted by most websites | Every computer, phone, app and website |
What happens to file size
| Test image | BMP | PNG | Change |
|---|---|---|---|
| A 2400 × 1350 photo | 9.27 MB | 4.01 MB | -57% |
| A 1440 × 860 website screenshot | 3.54 MB | 140 KB | 26× smaller |
About the two formats
BMP
BMP stores every pixel with no compression at all, so even simple images take megabytes. It’s mostly found in old software, scanners and exports.
PNG
PNG stores every pixel exactly, with no quality loss, and supports transparent backgrounds. That makes it ideal for graphics and screenshots, but photos saved as PNG are very large.
How to convert BMP to PNG
- 1Add your BMP files.
- 2Adjust the quality if you like.
- 3Download the PNG files.
Questions
Do my files get uploaded?
No. BMP to PNG runs entirely in your browser, so your files never leave your device. Close the tab and they're gone.
Is it really free?
Yes. No account, no daily limits and no watermark on your files.
Is BMP to PNG lossless?
Yes. Every pixel stays exactly the same; the file is just stored more efficiently.