Convert HEIC to PNG
Lossless PNG, converted on your own device. The format selector is already set to PNG - switch it to JPG if you would rather have smaller files.
Your photos are converted on your own device and never leave it - nothing is uploaded to a server.
The quality slider applies to JPG and WebP. PNG is lossless, so it ignores the slider and always keeps every pixel.
Should you actually convert to PNG?
For an ordinary photograph, usually not - JPG is the better target. PNG is lossless, which sounds like the premium option and sometimes is, but for a picture taken with a phone camera it mostly buys you a much larger file and no visible improvement. PNG earns its keep when the image has sharp edges, text, transparency, or a future full of edits. Here is the honest split.
| Your image | Best target | Why |
|---|---|---|
| A normal photo from the camera | JPG | Far smaller, no visible difference, accepted everywhere |
| Anything with transparency | PNG | JPG has no alpha channel at all |
| Screenshots, text, diagrams, logos | PNG | Lossless keeps edges crisp; JPG smears them |
| A file you will edit and re-save often | PNG | No extra loss each time you save |
| Uploading to a site with a size limit | JPG | PNG will often be too big to accept |
| Sending by email or messaging | JPG | Same picture, a fraction of the size |
The thing almost everyone gets wrong about PNG
Converting a HEIC to PNG does not recover any quality. This is worth being blunt about, because "lossless" is easy to misread as "better". Your HEIC was already compressed with loss the moment the camera wrote it - detail was discarded then, permanently. PNG is lossless in the sense that it stores whatever pixels you hand it without discarding any more. It cannot rebuild what was never saved.
So the correct way to think about it: PNG protects an image from future loss; it does not undo past loss. That is genuinely valuable if you are about to crop, retouch and re-save a file several times over. It does nothing at all for a photo you are simply going to look at or send to someone. If you want the fuller comparison of what these formats keep and throw away, HEIC vs JPG covers it, and what a HEIC file is explains the format itself.
What PNG costs you in size
Because nothing is discarded, a photograph saved as PNG comes out considerably larger than the same picture as HEIC or JPG - often several times larger. The exact multiple depends on the image: a photo full of fine detail and sensor grain inflates far more than a smooth, simple one, so any single number quoted online is a rough estimate rather than a rule. The reliable way to know is to try it: convert one of your own photos here as PNG, then again as JPG, and compare the two sizes.
One more useful detail: iPhone screenshots are already PNG. The camera is what produces HEIC. So if the file in front of you ends in .HEIC, it is a photograph - which is exactly the case where JPG usually wins.
Converting a whole folder works the same way here as anywhere else on the site: see batch conversion for hundreds of files at once, or converting straight from an iPhone if the photos are still on the phone.
Frequently asked questions
Does converting HEIC to PNG improve the quality?
No, and this is the most common misunderstanding about PNG. Your HEIC file was already compressed with loss when the camera saved it. PNG is lossless, which means it stores whatever pixels it is given without throwing any more away - it cannot recover detail that the HEIC never kept. Converting to PNG protects the image from further loss; it does not undo the first one.
Should I convert my iPhone photos to PNG or JPG?
For ordinary photographs, JPG. It is the format every device, website and print shop expects, and at a high quality setting the difference is invisible while the file is far smaller. Choose PNG when you need transparency, when the image is a screenshot or contains sharp text and graphics, or when you plan to edit and re-save the file repeatedly.
Why is the PNG so much bigger than the HEIC?
Because PNG never throws information away. HEIC squeezes a photo down by discarding detail the eye is unlikely to miss; PNG stores every pixel exactly, so a photograph saved as PNG is typically several times the size of the same picture as HEIC or JPG. The multiple depends on how much fine detail and grain the photo has.
Does PNG keep transparency from a HEIC file?
PNG supports a full alpha channel, so transparency survives where the source has it. In practice iPhone camera photos have no transparency to keep - it matters for graphics and exported artwork rather than for pictures taken with the camera.
My iPhone screenshot is not a HEIC file. Why?
Because iPhone screenshots are saved as PNG already. HEIC is what the camera produces. If the file you are holding ends in .HEIC it came from the camera, which usually means a photograph - and for photographs JPG is the more practical target.
Are my photos uploaded to convert them?
No. The conversion runs entirely inside your browser, on your own device, and no file is ever sent to a server. That is also why there is no cap on how many photos you convert at a time.