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Your files never leave your device. Converted in your browser, never uploaded.How
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FileInto converts BMP images to PNG in your browser, one at a time or in bulk. Nothing is uploaded. Same pixels, usually a fraction of the size.

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

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

How to convert BMP to PNG

  1. Drop your BMP images on the box above, or choose them. One image or a whole folder of them.
  2. PNG is lossless, 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, or all of them as a ZIP.

What is kept, and what changes

DetailIn your PNGNotes
Size in pixelsThe sameNothing is resized or cropped.
QualityExactly the samePNG is lossless: what you see now is saved exactly.
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

"FileInto couldn't read this image"
The file may be damaged, or not really a BMP. 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 BMP to PNG?
Drop your BMP images on the converter on this page. They convert in your browser straight away; download one PNG, or all of them as a ZIP. No sign-up and no upload.
Is this BMP to PNG converter free?
Yes. Every image converts free, and up to 10 download at a time without an account. For bigger batches, a Day Pass or Unlimited removes the limit.
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 BMP to PNG?
BMP is an uncompressed Windows bitmap. The files are huge, and most websites and apps won't take them. PNG is the safer choice for editing, transparency and sharp graphics.
Can I convert many images at once?
Yes. 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.
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. Every image converts and shows its new size free. Up to 10 images download at a time free, no account needed; a Day Pass ($9 for 24 hours) or Unlimited ($7 a month) has no limit. It works in current versions of Chrome, Edge, Safari and Firefox, on computers and phones.

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