HEIC to JPG

1. Choose the photo on your device. Drop a .heic or .heif file onto the panel above, or press Browse photos. On an iPhone you can pick it straight out of your camera roll.
2. Press Convert to JPG. There is nothing to set. The decoder is already in the page, so the photo keeps every pixel it had, is written at quality 90, and never leaves the device it is on.
3. Download the JPG. The panel shows the new size next to the original. Expect roughly double, because JPEG is about half as efficient as HEIC at the same picture.

One JPG, at exactly the pixel dimensions the photo already had. Nothing is scaled, cropped or rotated, and the file is written at quality 90 — high enough that you would struggle to tell it from the original at full zoom.

A HEIC file can hold more than one picture. Live Photos, Portrait depth maps and burst frames all live in the same container, and only the main image is converted. The JPG you download is the frame you see in your camera roll, on its own.

The download keeps the original name inside a Resizo prefix, so a photo that arrived as IMG_4821.HEIC leaves as resizo-converted-IMG_4821.jpg — still recognisable, and obvious which file it came from.

This is the first thing almost everyone tries, and it is worth saying plainly: changing the extension changes the label on the file, not the bytes inside it. A HEIC renamed to .jpg is still HEIF-encoded data, and any program that opens it reads the first few bytes of the file rather than trusting the name.

What you get is either nothing at all or an error about a damaged file — and on an upload form, a rejection after the upload has already finished. The drop zone on this page reads those same first bytes the moment the file lands, so a renamed file is named for what it actually is instead of failing halfway through.

• Application forms — jobs, visas, universities, insurance claims. Most of them list JPG and PNG and stop there.
• Print. Photo kiosks in shops, online print labs and office printers driven from older software mostly do not know what a HEIC is.
• Documents. Dropping a HEIC into Word, PowerPoint or a slide deck someone else will open tends to leave a placeholder where the picture should be.
• Anything you are sending to a mixed audience. A JPG opens on a fifteen-year-old laptop; a HEIC needs software from the last few years.
• Older Android handsets and the apps on them, which read HEIF inconsistently even when the system supports it.

HEIC is roughly twice as efficient as JPEG, so the same picture written as a JPG is usually about twice the size. A 2 MB photo off an iPhone commonly lands somewhere near 4 MB. That is not a fault in the conversion; it is the cost of a format everything can read.

If the form you are filling in has a size cap, deal with it after the conversion rather than before. Compress the JPG to a byte target — the 200 KB and 100 KB pages are set up for exactly that — or cut the pixel dimensions first with the resizer, which shrinks a file faster than any quality setting can.

This converter handles a single photo per pass, up to 20 MB, which covers every still an iPhone produces with room to spare. There is no batch mode for HEIC — the bulk resizer takes JPEG, PNG and WebP only, so a folder of HEICs has to come through here one at a time. Since your own device does the decoding, a run of them is only as fast as the machine you are on, and there is no queue to wait in.

If you are converting the same photos every week, the better fix is upstream — the HEIC tool page walks through the camera setting that stops your iPhone writing HEIC in the first place, and what it costs you in storage.