Image converters · OnDevice
HEIC to JPG / PNG
Drop one iPhone photo or a whole folder of them. Conversion runs in a Web Worker on this device. A WebAssembly decoder is loaded only if your browser cannot read HEIC itself.
No upload. Files never leave your device.
Drop HEIC or HEIF files here
You can also paste from the clipboard on some browsers, or use the button below. Multiple files are fine.
Results
No files yet. Nothing is sent to a server when you add them.
Frequently asked questions
Does this upload my photos?
No. Files are read in the browser and processed on your device. The site is static: there is no conversion server to receive the photo. A decoder script may be downloaded the first time it is needed, the same way the page’s own JavaScript is downloaded. That is not an upload of your file.
What is HEIC, and why convert it?
HEIC is the still-image container many iPhones use (HEIF with HEVC). Some apps, browsers, and Windows programs still expect JPEG or PNG. Converting on your device avoids sending the original photo to a third-party converter.
Will quality be lost?
JPEG is a lossy format. The quality slider (default 92) controls how strongly the JPEG is compressed. PNG is lossless for the pixels the decoder produces, so files are larger. The pixels themselves come from the HEIC decoder; a few browsers can decode HEIC natively, and others use the open-source libheif library.
Can I convert many files at once?
Yes. Add multiple HEIC or HEIF files, convert them, then download a ZIP. Live Photos and HEIC files that contain more than one image export each image separately.
Is there a file size limit?
There is no server quota, but your browser’s memory is the limit. This page refuses files larger than 40 MB and may struggle with very large panoramas or long bursts. If a conversion fails, try fewer files at a time.
Which license covers the decoder?
Native browser decoding, when available, uses the browser itself. The fallback decoder is libheif / libde265, shipped as replaceable LGPL-3.0 files. Details, source links, and replacement instructions are on the licenses page.