You take a photo on an iPhone, try to upload it to a job portal or a government form, and the site rejects the file. The culprit is usually the format: since iOS 11, iPhones save photos as HEIC by default, and plenty of websites and programs still expect JPG. This guide explains what a HEIC file is, why it is so widely refused, and how to convert HEIC to JPG in your browser without uploading your photos anywhere. It also covers what happens to the photo's location data, how Live Photos behave, and the iPhone setting that avoids the problem entirely.
What is a HEIC file?
HEIF, the High Efficiency Image File Format, is a container for images standardized by MPEG. HEIC is the name for HEIF files whose pictures are compressed with HEVC, the same codec (also called H.265) used for a lot of modern video. Apple adopted it as the default photo format with iOS 11 and macOS High Sierra in 2017, and the files carry a .heic extension. You may also see .heif for files from other devices.
The appeal is efficiency. Because HEVC is a newer, more capable codec than the one inside JPEG, a HEIC photo is roughly half the size of a JPEG at similar visual quality. That matters on a phone that takes thousands of pictures. As a container, HEIF can also hold more than one image, a thumbnail, depth information for portrait effects and the usual camera metadata, all in a single file.
| HEIC | JPG | |
|---|---|---|
| Compression | HEVC (H.265) based | JPEG, a format from the early 1990s |
| Typical file size | Roughly half of a comparable JPG | Larger for the same visual quality |
| Extra content | Several images, depth data, thumbnails | One image |
| Support | Apple devices; elsewhere often needs extra software | Practically every device, browser and program |
Why so many sites and programs reject HEIC
JPG works everywhere because every browser and operating system can decode it. HEIC is different. HEVC is covered by patents with licensing terms, which has slowed its adoption outside Apple's products. Chrome and Firefox do not display HEIC images on their own, and Windows usually needs extensions from the Microsoft Store before its Photos app can open them.
For a website, that means a HEIC upload might not display for other users, could not be resized by the server's image library, or would need an extra conversion step. Many upload forms therefore accept only JPG and PNG, and some reject anything with an unexpected extension before even looking at the file. Converting first is the reliable fix.
How to convert HEIC to JPG in your browser
The HEIC to JPG converter does the work on your own device. Your photos are never uploaded, which is worth something when they show your home, your family or a document you scanned.
- Drop one or more
.heicor.heiffiles onto the page. You can add a whole batch at once. - Choose JPG or PNG as the output format.
- For JPG, set the quality with the slider. It runs from 60 to 100 percent and starts at 92.
- Download each converted photo, or click Download all (.zip) to get them in one archive.
Photos are converted one after another at full resolution and come out upright, so a portrait shot stays portrait. In Safari, the browser decodes HEIC itself. In other browsers, the converter loads a decoder based on libheif the first time you use it. It is a few megabytes, so the first photo takes a few seconds longer, and the browser caches it for next time.
JPG or PNG?
Pick JPG for almost everything: uploads, email, messaging and printing. It keeps photo files small and is what forms ask for. PNG is lossless, so it avoids a second round of compression, but for a camera photo it produces a much larger file with no visible gain. Choose PNG only when the image will be edited further and you want to avoid quality loss at each save, or when a form specifically asks for it.
Which quality setting to use
The default of 92 percent is a safe choice that looks the same as the original to most eyes. If a form has a size limit, try 80 to 85 percent: the file shrinks considerably while the photo still looks clean at normal viewing size. Going much lower tends to show blocky artifacts in skies and smooth gradients.
What happens to EXIF and GPS data
An iPhone photo records a lot about itself: the camera model, lens, exposure settings, the date and time it was taken and, if location access is on for the Camera app, the GPS coordinates of where you stood. You can see exactly what your original holds by opening it in the EXIF viewer, which reads HEIC files too.
The HEIC to JPG converter does not copy this EXIF data into the new files. Camera details, the capture date and GPS location are left behind. That is a privacy plus when you post a photo publicly, because the JPG no longer reveals where it was taken. The trade-off is that photo libraries which sort by “date taken” will fall back to the file date, so keep your originals if you are archiving pictures rather than sharing them.
Live Photos and HEIC
A Live Photo is a still image plus a short video clip recorded around it. On the iPhone they appear as one item, but when you copy them to a computer you often get a HEIC still and a separate video file. The converter works on the HEIC part only, so you get the still image as a JPG. The motion part is not converted; if you need it, share the Live Photo from the Photos app as a video instead.
Stop the iPhone from saving HEIC
If you regularly need JPGs, you can change the default. On the iPhone, go to Settings → Camera → Formats and choose Most Compatible. New photos are then saved as JPG, and videos use the older H.264 codec. Existing photos are not changed.
Keep in mind that the files will take up more space, and some capture options, such as recording 4K video at 60 frames per second, are only available with High Efficiency selected. Many people leave High Efficiency on and convert just the photos they need to share.
There is also a middle ground for copying photos to a computer by cable. Under Settings → Photos, the Transfer to Mac or PC option set to Automatic converts photos to a compatible format during the transfer, while Keep Originals copies the HEIC files as they are.
Tips for sharing converted photos
- Compress for upload limits. A full-resolution JPG from a recent iPhone can still be several megabytes. If a form caps uploads at 1 or 2 MB, run the JPG through the image compressor after converting.
- Combine pages into a PDF. When a form asks for one file containing several photographed pages, such as an ID card front and back, put the JPGs into a single document with JPG to PDF. Each image becomes one page, and you can pick A4 or US Letter.
- Check before posting. If you converted with another app, open the result in an EXIF viewer to confirm it no longer contains your location.
- Rename sensibly. iPhone file names like IMG_4821 tell a recipient nothing. A name such as
passport-photo.jpghelps the person on the other end.
Quick summary
HEIC is an efficient, modern photo format that simply is not supported everywhere yet. When a site refuses your iPhone photo, convert it to JPG at full resolution in your browser, choose a quality that fits the upload limit, and remember that the location and camera data stay behind in the original. If you rarely need HEIC, switch the camera to Most Compatible and the problem goes away for new photos.