HEIC to PNG converter
PNG is the format design tools, bug trackers and documentation systems tend to insist on. Drop an iPhone photo here and it comes out as a PNG, decoded on your own machine.
Who needs a PNG out of an iPhone photo
This is rarely about viewing the photo. It is about what happens next: a design tool that will not place a HEIC, an issue tracker that only accepts PNG attachments, a print workflow, or a document template that was set up years ago and never taught any newer format.
PNG is also the honest choice when the photo is going to be edited and re-saved several times. It is lossless, so each save writes exactly what it was given. A JPG loses a little every round trip, and after four or five it starts to show.
What the PNG does to the picture
- Nothing is thrown away. PNG stores the picture exactly as it was decoded, so this is the one conversion here that adds no compression loss of its own.
- The file gets much bigger. Expect roughly 15 to 25 MB from a 12-megapixel phone photo. That is normal and not a fault.
- Transparency, if there is any, survives. Camera photos have none, but a HEIC exported from an app rather than shot on a lens sometimes does, and here the see-through areas stay see-through — nothing is painted underneath.
Converting a HEIC to PNG
- PNG is already selected above.
- Drop your HEIC photos in, or click to browse.
- Download the result. It never left your device.
There is no quality setting to choose here, because PNG has none — the file is whatever the picture makes it.
Why nobody can tell you the size in advance
Every other target on this site takes a quality value. PNG takes none — not "quality 100", none at all, because the format has nowhere to put one. So the only thing deciding how big your PNG comes out is the picture itself, and that makes the answer genuinely unpredictable rather than merely hard to look up.
Measured on a single 12-megapixel frame: an area of flat colour writes to 0.2 MB, and dense photographic detail at the same pixel count writes to 18 MB. A ninety-fold spread, same camera, same resolution. This is PNG doing what it was designed for — it compresses by finding runs and repeats, and a photograph contains almost none.
Which is why "how many times bigger than the HEIC" has no answer worth quoting. The HEIC’s size tells you how compressible that scene was for a video codec; the PNG’s size tells you how compressible it is for a pattern matcher. Those are two different measurements of two different things, so a 1 MB HEIC and a 3 MB HEIC of the same subject land in much the same place.
One ceiling worth knowing about, because it is this page’s and not the others’. PNG is capable of 16 bits per channel, and a recent iPhone HEIC can hold 10-bit HDR. What comes out of here is 8 bits per channel in sRGB, because the photo is decoded into an ordinary browser canvas on the way through and that is what a canvas is. On a photo headed for a screen you will not see it. On a photo you are about to push hard in an editor, it is worth knowing that the extra range was already gone before the PNG was written.
Questions about HEIC and PNG together
Is PNG really lossless if HEIC was lossy?
Yes, but the loss already happened. The HEIC was compressed lossily by the camera. PNG preserves perfectly what it is handed, so nothing further is lost, but it cannot restore detail the camera discarded.
My 1 MB photo became a 17 MB PNG. Is that right?
Yes, that is the expected result for a 12-megapixel photo, and it does not depend much on what the HEIC weighed. Convert to WebP instead if you want transparency and lossless-looking quality without the weight.
Can I get a 16-bit PNG out of this?
No. The picture passes through a browser canvas, which is 8 bits per channel in sRGB, so that is what is written. A desktop editor is the right tool if you specifically need the deeper file.
Does the photo keep transparency?
Camera photos have no transparency to keep. The question matters for HEIC images exported from an app rather than shot on a camera, and there PNG does preserve see-through areas exactly.
Nothing is uploaded
It runs on your device. Turn the network off mid-conversion and it still finishes — or check any converter yourself.
Free, and no account
No signup, no watermark, no upgrade prompt. No size cap beyond your own device, and up to 50 pictures a go.
If PNG turns out to be the wrong target
- HEIC to JPG The iPhone photo that Windows refuses to open.
- HEIC to WebP Keeps HEIC-like file sizes, but the web can actually read it.
- WebP to PNG The one to pick when the image has a transparent background.
- JPG to PNG When something downstream will only take a PNG.
Or open the image converter to pick any combination, and the image compressor when the problem is size rather than format.