Convert BMP to PNG — Free Online Converter
Convert BMP images to PNG instantly. No registration, no watermarks, files deleted after 5 minutes.
PNG compresses BMP losslessly, typically cutting file size by 60–80 %. The result is shareable in any browser, email client, or application without Windows-specific software.
Convert BMP → PNGHow to Convert BMP to PNG
- Click Convert BMP → PNG above to open the converter.
- Upload your BMP file (drag & drop or click to browse, max 5 MB).
- Select PNG as the target format.
- Click Convert and download your PNG file.
Tips for Converting BMP to PNG
- PNG compresses BMP losslessly, typically reducing file size by 60–80% with no quality change.
- PNG is the recommended modern replacement for BMP in virtually all use cases.
- BMP colour depth (1-bit to 32-bit) is fully preserved in the PNG output.
About BMP and PNG Formats
| Property | BMP | PNG |
|---|---|---|
| Full name | Windows Bitmap | Portable Network Graphics |
| Best for | Uncompressed Windows images | Graphics, screenshots, transparency |
| Transparency | ✗ No | ✓ Yes |
| Lossless | ✓ Yes | ✓ Yes |
| Created by | Microsoft | PNG Development Group |
| Year introduced | 1986 | 1996 |
| Max colour depth | 32-bit (16M + alpha) | 48-bit (16-bit/ch) |
| File extensions | .bmp | .png |
| MIME type | image/bmp | image/png |
About BMP: Bitmap Image File
Uncompressed Windows format with maximum quality but very large file sizes.
Common uses: Windows applications, print production, archiving
Pros: lossless, universal on Windows, simple format
Cons: very large file size, no transparency, not for web
File extensions: .bmp
MIME type: image/bmp
Introduced: 1986 by Microsoft
About PNG: Portable Network Graphics
Lossless format with full transparency support, ideal for graphics, logos and screenshots.
Common uses: logos, icons, screenshots, web graphics, transparent images
Pros: lossless quality, transparency support, sharp edges
Cons: larger file size than JPEG, not ideal for photos
File extensions: .png
MIME type: image/png
Introduced: 1996 by PNG Development Group
Why Convert BMP to PNG?
People convert BMP to PNG to gain transparency support that BMP lacks.
PNG is the standard choice for web graphics with transparent backgrounds — logos, icons, UI components, and overlays all require an alpha channel that BMP cannot provide.
Frequently Asked Questions
Is it free to convert BMP to PNG?
Yes, converting BMP to PNG on convert-image.net is completely free with no registration required.
Will I lose quality when converting BMP to PNG?
No quality loss occurs when converting to PNG, as it uses lossless compression.
What is the maximum file size for BMP to PNG conversion?
The maximum upload size is 5 MB. For larger files, consider compressing them first.
How long does BMP to PNG conversion take?
Most conversions complete in under 5 seconds. Large or complex files may take slightly longer.
What file extension does PNG use?
PNG files use the .png file extension.
BMP to PNG: Privacy & Security
Files are stored temporarily on our server and deleted automatically after 5 minutes. All transfers use HTTPS encryption. No account, no tracking of individual files. See our Privacy Policy for details.