Nothing leaves this device. Open your browser's Network tab and watch — your file never appears.
One iPhone photo or five hundred. Drop the whole lot in at once and every HEIC is converted on your own device, then handed back as a single zip. Free, no sign-up, no file-size cap, and nothing is uploaded.
Why your phone makes a file nothing will open
Since iOS 11 the iPhone camera has saved photos as HEIC, which stores the same picture in roughly half the space of a JPG. The catch is that HEIC is built on HEVC, a patent-encumbered video codec — so Chrome, Firefox and most upload forms simply cannot read it. You get a photo your own laptop will not open.
This is not a rare annoyance. In May 2020, students photographing handwritten answers for College Board AP exams had uploads fail because the portal accepted only JPG and PNG — and iPhones were sending HEIC.
On an iPhone, this page downloads no decoder at all
Safari can already read HEIC, because macOS and iOS have the codec built in. So the page tries your browser first and only fetches the 376 KB WebAssembly decoder if your browser genuinely cannot do the job. On Chrome and Firefox it downloads once, when you drop your first file — never on page load.
Live Photos give you the still
A Live Photo is a container holding a still image and a short video. Converting it gives you the still frame, which is what you actually wanted, and the page tells you when it found one.
You can also stop your phone making them
If you would rather not convert anything again: on iPhone go to Settings → Camera → Formats and choose Most Compatible. New photos will be JPG. Photos you already took stay HEIC, which is what this page is for.
Nothing is uploaded, and camera data is left behind
Photos carry EXIF metadata including, very often, GPS coordinates of where they were taken. Because the picture is redrawn onto a canvas before saving, none of that survives into the converted file. And none of it is sent anywhere: the decoding happens in your browser, and the page's security policy forbids this site from opening a connection to anywhere but itself. Here is how that is enforced.
How to convert HEIC to JPG
- Drop in the .heic or .heif photos straight off your iPhone.
- Pick the JPG quality, and a KB limit if the form demands one.
- Press Convert and download JPGs that every site accepts.
All 39 HermitFile tools
Every one of them runs in your browser. Nothing you open is uploaded, and nothing is stored.