BMP
VS
PNG
BMP vs PNGComplete Format Comparison Guide
PNG is better than BMP in virtually every scenario. It offers lossless quality with dramatically smaller files, transparency support, and universal compatibility. BMP is a legacy format with no practical advantages for modern use.
Updated April 10, 2026
None vs Lossless compression
Side-by-side analysis
Feature-by-Feature Comparison
| Feature | BMP | PNG |
|---|---|---|
| Full Name | Bitmap Image File | Portable Network Graphics |
| File Extension | .bmp | .png |
| Compression | None | Lossless |
| Transparency | No | Yes |
| Animation | No | No |
| Color Depth | Up to 32-bit | Up to 48-bit |
| Max Colors | 16.7 million (24-bit) | 16.7 million (24-bit) or 281 trillion (48-bit) |
| Browser Support | Good | Universal |
| Typical File Size | Very Large | Large |
| Year Introduced | 1986 | 1996 |
Full Name
BMP
Bitmap Image File
PNG
Portable Network Graphics
File Extension
BMP
.bmp
PNG
.png
Compression
BMP
None
PNG
Lossless
Transparency
BMP
No
PNG
Yes
Animation
BMP
No
PNG
No
Color Depth
BMP
Up to 32-bit
PNG
Up to 48-bit
Max Colors
BMP
16.7 million (24-bit)
PNG
16.7 million (24-bit) or 281 trillion (48-bit)
Browser Support
BMP
Good
PNG
Universal
Typical File Size
BMP
Very Large
PNG
Large
Year Introduced
BMP
1986
PNG
1996
File Size Comparison
Scenario: A screenshot at 1920 × 1080 pixels, 24-bit color
BMP
.bmp
5.9 MB
PNG
.png
980 KB
Note: Both formats store identical pixel data. PNG's compression reduces the file to about 1/6th the size with zero quality loss.
When to Use Each Format
BUse BMP when...
- You are working with legacy Windows applications that require BMP input
- You need completely uncompressed pixel data for specialized processing
- Your workflow explicitly requires the BMP format (rare)
- You are interfacing with embedded systems that only accept BMP
Best for
Windows system graphics and iconsUncompressed image storage when quality is paramountSimple image processing pipelinesLegacy Windows application compatibility
PUse PNG when...
- You need lossless image quality (PNG does this with much smaller files)
- You want transparency support
- The image is for web, email, or any modern digital distribution
- You want broad compatibility across all operating systems and browsers
- You need efficient storage without sacrificing quality
Best for
Screenshots and UI elementsGraphics with text overlaysImages requiring transparencyLogos and iconsLine art and diagrams
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BMP vs PNG FAQ
Common questions about BMP and PNG image formats
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