About this tool
Convert BMP to PNG in your browser. Add your file, press the button, and download the result. PNG is lossless, so the file is usually larger than the original and it cannot bring back detail that BMP already lost. Nothing is uploaded, so your files stay private.
How to use it
- Add your BMP files. You can add several at once.
- PNG is already selected as the output format. Adjust quality if you like.
- Press Convert & Download. Several files come as one ZIP.
Frequently asked questions
How do I convert BMP to PNG?
Add your BMP file above and press Convert & Download. It takes a moment and needs no sign-up.
Does converting BMP to PNG change the quality?
PNG is lossless, so the file is usually larger than the original and it cannot bring back detail that BMP already lost.
Can I convert many files at once?
Yes. Add several files and they download together as a ZIP.
Can I also resize the image?
Yes. Open the Resize page to change the size, or the Compress page to set a maximum file size in KB.
Is it free?
Yes. It is free to use, with no sign-up and no watermark.
Are my photos uploaded anywhere?
No. HD Resizer runs entirely in your browser, so your images stay on your device. Nothing is sent to a server, and there is no account or watermark.