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FileInto converts PNG images to 24-bit BMP bitmaps in your browser, one at a time or in bulk. Nothing is uploaded. Every pixel is kept; transparent areas become white.

  • Never uploaded, stays on your device
  • One image or hundreds
  • See the size saved
Drop your PNG images hereOne image free, or a whole batch with a Day Pass. Each converts to BMP on this device.Stays on your device. Never uploaded.

Have a different file, or need a different one? Click or above.

How to convert PNG to BMP

  1. Drop your PNG images on the box above, or choose them. One image or a whole folder of them.
  2. BMP is uncompressed, so there is no quality setting.
  3. Each image converts on this device straight away, with its old and new size next to it.
  4. Download one file free, or a whole batch as one ZIP with a Day Pass or Unlimited.

What is kept, and what changes

DetailIn your BMPNotes
Size in pixelsThe sameNothing is resized or cropped.
TransparencyFilled with whiteBMP has no transparency, so see-through areas become white.
QualityExactly the sameBMP stores every pixel as it is, with no compression.
File sizeMuch largerWithout compression a 12 megapixel photo is about 36 MB. That is what BMP is: use it only where it is asked for.
Photo details (EXIF)RemovedCamera, date and location details are not copied into the new file, so it is safe to share.
ColoursKept, in standard sRGBWide-colour and HDR pictures are converted to standard colour, which every screen and app shows the same way.

Problems and fixes

The background turned white
BMP has no transparency, so see-through areas are filled with white. To keep them, convert to PNG instead.
The BMP is much bigger than my file
That is normal: BMP has no compression, so it stores every pixel in full. If the program accepts PNG, PNG keeps every pixel too at a fraction of the size.
"FileInto couldn't read this image"
The file may be damaged, or not really a PNG. Open it in your photo app; if it shows there, save a fresh copy and try again.
It is slow with hundreds of photos
Large batches use every core of your device but still take a moment per photo. Keep the tab open; the images convert a few at a time and the ZIP is built at the end.

Questions

How do I convert PNG to BMP?
Drop your PNG images on the converter on this page. They convert in your browser straight away; download one BMP, or all of them as a ZIP. No sign-up and no upload.
Is this PNG to BMP converter free?
Yes, one image at a time, with no account and no sign-up. Converting many images at once, with one ZIP to download, needs a Day Pass ($7 for 24 hours) or Unlimited.
Are my images uploaded anywhere?
No. Your browser decodes and re-encodes each image inside this tab. Your file never reaches our servers, and nothing about it does either: not its name, its size or how many rows it has.
Why convert PNG to BMP?
PNG is lossless and keeps transparency, which makes it right for screenshots, logos and graphics, but large for photos. BMP is the safer choice for older Windows programs, embedded screens and apps that only take bitmaps.
Can I convert many images at once?
Yes, with a Day Pass or Unlimited. Drop as many as you like, or a whole selection from a folder. They convert a few at a time on your device and download together as one ZIP. Free converts one image at a time.
Does it work on iPhone and Android?
Yes, in current Safari, Chrome, Edge and Firefox, on phones and computers. On a phone, choose the images from Photos or Files.
What are the limits?
Images up to 50 MB each. Free converts one image at a time, no account needed. Converting many at once, with one ZIP to download, needs a Day Pass ($7 for 24 hours) or Unlimited ($9 a month). It works in current versions of Chrome, Edge, Safari and Firefox, on computers and phones.

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