BMP to PNG Converter
Convert BMP images to PNG in your browser. Nothing is uploaded, nothing is watermarked, and every option is available to everyone.
Drop your images here
or click to browse your files
Up to 200 files at a time, 200 MB per file. These limits protect your browser from running out of memory, they are not commercial restrictions.
This image is being read and converted by your own browser. It is never uploaded.
How to do it
Step 1: Drop your BMP files onto the page, or click to choose them. You can also paste an image straight from the clipboard.
Step 2: PNG is already selected as the output. Adjust the quality or size if you want to.
Step 3: Press Convert. The work happens in your browser, so nothing is uploaded.
Step 4: Download the PNG file, or download everything as a ZIP if you converted several.
Why convert BMP to PNG?
PNG stores exactly the same pixels as the BMP while compressing them properly, so nothing is lost and the file gets much smaller.
The right choice for screenshots, diagrams and anything with text.
PNG also brings its own advantage here: every pixel is preserved exactly, so text and sharp edges stay crisp.
BMP compared with PNG
The two formats are built for different jobs, and the differences decide whether this conversion is the right one. BMP and PNG differ mainly in these respects.
| Aspect | BMP | PNG |
|---|---|---|
| Compression | Usually none at all. | Lossless. The file is compressed, but no image information is thrown away. |
| Transparency | Sometimes, in 32-bit files, though many programs ignore it. | Yes, with 256 levels of opacity per pixel. |
| Software support | Good on Windows, patchier elsewhere. | Universal. |
| Best suited to | Output from older Windows software, scanners and some scientific tools. | Screenshots, logos, icons, diagrams and anything with text or flat colour. |
Questions
Are my BMP files uploaded anywhere?
No. The conversion runs entirely in your browser. Your files are read from your device and never sent to a server, because this site has no server that receives them.
Does converting to PNG lose quality?
No. PNG stores every pixel exactly as it was given, so the conversion itself adds no loss. Anything the BMP had already discarded cannot be brought back, however.
Can I convert several BMP files at once?
Yes. Add as many as you like, convert them together, and download the results individually or as a single ZIP. Progress is shown per file and overall.
Is there a file size limit?
There is no commercial limit and no account. There are technical limits, because a browser has finite memory: very large images are flagged before conversion, and the tool says plainly when a device may struggle rather than freezing.
Does it cost anything?
No. Every format and every feature is available to everyone. There is no paid tier, no watermark and no sign-up.