BMP to PNG converter
Convert BMP to PNG in seconds, free and unlimited. No upload, no sign-up, no watermark: your image never leaves your device.
Last updated
Quick answer: To convert BMP to PNG, add the BMP file to the iHateFiles BMP to PNG converter and press Convert. The conversion runs in your browser, so the file is never uploaded, and it is free with no sign-up, watermark or size limit. A straight swap between two raster formats, at full resolution.
Should you convert BMP to PNG?
A safe conversion: BMP and PNG are both lossless, so this is a change of container rather than a change to the picture.
Nothing is discarded
BMP and PNG are both lossless, so every pixel survives the move intact. Convert back and forth as often as you like; the image does not degrade.
BMP and PNG side by side
| BMP | PNG | |
|---|---|---|
| Compression | Lossless | Lossless |
| Transparency | Yes | Yes |
| Animation | No | No |
| Written here | Yes | Yes |
What usually goes wrong
About the BMP. The file size surprises people. There is no compression to speak of, so the size depends only on the dimensions, not on how complicated the image is.
About the PNG. People save photographs as PNG and wonder why an email bounces. A photo that is 400 KB as a JPG is routinely 4 MB as a PNG, because lossless compression cannot do much with the noise in a real photograph.
How to convert BMP to PNG
- Add your BMP file. It is read from your disk and stays there.
- Check the settings. The output format is already set to PNG.
- Press convert and the PNG file is saved back to your device.
Questions
How do I convert BMP to PNG?
Open this page, add your BMP file, and press convert. The file is decoded and re-encoded by your own browser and saved back to your device. Nothing is uploaded.
Is this BMP to PNG converter free?
Yes, completely. There is no account, no sign-in, no watermark and no daily limit, because there is no server doing the work. Your own device does it.
Are my files uploaded anywhere?
No. There is no upload endpoint. The conversion runs inside this browser tab, so your file never leaves your device. You can open your browser's network panel and watch: nothing carrying your file is sent.
Is there a file size limit?
No fixed limit. Because the work happens on your machine there is no server quota. The only ceiling is your own device's memory, which for video means very large files may be slow.
Will converting to PNG lose quality?
PNG is lossless, so this step throws nothing away. If the original was already a lossy format, the damage it did cannot be undone, but nothing further is lost.
Can I convert several BMP files at once?
Yes. Add as many as you like and they are converted one after another, then offered as a single ZIP.