Convert HEIC to PNG
A lossless PNG copy of every iPhone photo, made on your device.
Done
Open the network tab. It stays empty.
Add files and run the tool to see every request this tab makes.
Your files are processed on this device and never sent to a server. Reload the page to clear everything from memory.
HEIC is the format iPhones and iPads have used since iOS 11. It packs a photo into about half the space of a JPG, but a lot of software still refuses to open it. PNG is the safe choice when you need the picture to open everywhere and you do not want a second round of lossy compression, for example when the photo is going into a design tool, a document, or an archive.
The decoder is libheif compiled to WebAssembly, running inside this tab. Your photo is decoded to pixels in memory and the browser writes the PNG. Expect the PNG to be much larger than the HEIC, often five to ten times, because PNG stores every pixel without loss.
How it works
- Drop your HEIC files onto the page, or tap to pick them. Batches are fine.
- There are no quality settings: PNG is lossless, so the output matches the decoded image exactly.
- Download each PNG, or all of them as one zip.
In your browser, not on a server
Your browser already knows how to decode JPG, PNG, WebP, AVIF and SVG. Stayput draws each image onto an off-screen canvas and asks the browser to encode it again in the format you picked. HEIC input goes through the libheif WebAssembly decoder, and JPEG XL (or AVIF, in a browser without native support) through the Squoosh decoders compiled to WebAssembly, fetched once as program files and cached. Nothing here needs a server because nothing here is beyond what a browser can do on its own.
Compared with upload-based tools: Online converters upload your image, convert it on their machine and hand it back through an ad-covered download page. This does the same conversion with the same codecs, on your device, in less time than the upload.
Verify it yourself. Load this page, turn off Wi-Fi or switch to airplane mode, and run the tool. Or open your browser's developer tools (F12, or Cmd-Option-I on a Mac), pick the Network tab, and watch it while you convert. The panel above does the same count for you.
Questions
Why is the PNG so much bigger than the HEIC?
HEIC uses lossy video-style compression; PNG is lossless. A 2 MB HEIC from a 12-megapixel camera typically becomes a 15 to 25 MB PNG. If size matters more than a lossless copy, use the HEIC to JPG tool instead.
Does the PNG keep the photo’s date and location?
No. PNG has no standard place for camera EXIF data, and browsers do not write it. If you need the metadata, convert to JPG and tick "Keep EXIF metadata".
Are my photos uploaded?
No. There is no server in this process at all. You can load the page, switch your device to airplane mode, and convert.
More image tools
HEIC to JPG
Turn iPhone and iPad photos into JPG or PNG files that open anywhere. Your photos never leave this device.
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PNG, JPG, WebP, GIF, BMP, AVIF, JPEG XL, SVG and HEIC in. JPG, PNG or WebP out. Converted on your device.
Compress & Resize Images
Make photos small enough to email or upload. Batch resize, set a quality, see the savings before you download.
Remove EXIF Data
See what a photo reveals, then delete it. Lossless: pixels are untouched, only the metadata is removed.
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Guides
- What is EXIF data, and what does a photo reveal?The information stored inside a photo file, what it can give away, and how to see and remove it.
- How to open HEIC files on WindowsWhy iPhone photos will not open, the three fixes, and the fastest free way to convert a whole batch to JPG.
- How to reduce an image's file sizeTwo settings do almost all the work. Here are the numbers to use for email, forms, listings and websites.
- JPG, PNG, WebP or HEIC: which image format to useA practical rule for each job, and the conversion to get there.