BMP to PNG Converter
Convert BMP images to PNG for lossless compression with smaller file sizes.
BMP vs PNG: Technical Overview
Why Convert BMP to PNG?
PNG gives you exactly the same image as the BMP, pixel for pixel, at a much smaller size and in a format every website, app and editor handles well. It's the best choice for screenshots, diagrams, icons, pixel art and scanned drawings saved as BMP, where JPG's lossy compression could blur edges.
Converting old BMP archives to PNG saves a lot of disk space without any loss, which makes it a safe choice for preserving images from legacy software, games and early digital projects. PNG is also well suited to further editing, since saving it again never reduces quality.
What Changes During BMP to PNG Conversion
BMP vs PNG: Key Differences
| Feature | BMP | PNG |
|---|---|---|
| Compression | Usually none | Lossless DEFLATE |
| Quality change | – | None, pixel-exact |
| Typical size reduction | – | About 50–95%, depending on content |
| Transparency | 32-bit variant, poorly supported | Full alpha, universally supported |
| Web support | Rarely used | Universal |
| Best for | Legacy software | Screenshots, graphics, lossless storage |
When to Convert BMP to PNG
Shrinking screenshots and diagrams saved as BMP without any loss
Converting Paint or legacy Windows images for use on the web
Archiving old BMP collections from games and software in less space
Using BMP icons and sprites in modern design tools and engines
Preparing scanned line art and drawings for websites
Keeping images lossless while making them easy to share
How to Convert BMP to PNG
- Click 'Select File' and choose your BMP image
- Our system prepares the image
- Click 'Convert to PNG' button
- Wait for the conversion to complete
- Download your PNG image
Processing typically takes a few seconds. For larger files, conversion may take slightly longer. All conversions are free with no daily limits.
Tips for Best BMP to PNG Results
- 1.Use PNG for screenshots, text and graphics; use BMP to JPG for large photos you only need to share.
- 2.PNG is lossless, so you can convert back to BMP later if a device requires it, with no difference.
- 3.Convert batches of BMP files at once to clean up an archive.
- 4.Compress the PNG further with CNVRT's image compressor if needed.
Benefits of Converting BMP to PNG
- Lossless quality preservation
- Smaller file sizes
- Transparency support
- Fast conversion
- No signup required
BMP to PNG — Frequently Asked Questions
Is BMP to PNG lossless?
Yes. Every pixel is kept exactly; only the file compression changes.
How much smaller will the PNG be?
Usually 50–95% smaller. Screenshots and graphics shrink the most; detailed photos the least.
Is transparency preserved?
Yes. 32-bit BMPs with an alpha channel keep their transparency in the PNG.
Should I use PNG or JPG?
PNG for screenshots, graphics and anything that must stay exact; JPG for photos where the smallest file matters most.
Are the dimensions kept?
Yes, exactly the same width and height.
Quality & Security
Secure Conversion
Files are encrypted during transfer and automatically deleted within 60 minutes.
Fast Processing
Optimized servers process your BMP to PNG conversion in seconds.
High Quality
Advanced algorithms maintain the highest possible output quality.
Convert to PNG from Other Formats