Quick Answer
HEIC is Apple's default photo format since iOS 11 in 2017. It stores images at about half the size of JPG at the same quality using the modern HEVC codec, but many apps and Windows PCs cannot open it. To convert HEIC to JPG free, drop the files into a browser converter and download the JPG, or set your iPhone camera to Most Compatible.
To convert HEIC to JPG free, drop your photos onto a browser based converter that runs entirely on your device, then download the JPG. HEIC is the High Efficiency Image Container format, Apple's default photo format since iOS 11 (MDN Web Docs). You take a photo on your iPhone, move it to a Windows PC or Android phone, and get a file your computer refuses to open. It saves storage on the iPhone but causes headaches everywhere else. Here is why iPhones use it, how it stacks up against JPG, and every free way to convert.
What is HEIC and why do iPhones use it?
HEIC stands for High Efficiency Image Container. Apple introduced it as the default iPhone camera format when iOS 11 launched in 2017, a change Apple documents in its support pages. The reason is storage: HEIC stores photos at roughly half the size of JPG at the same visual quality, so a 4MB JPG becomes about a 2MB HEIC. Across thousands of photos, that is a lot of saved space on your phone and in iCloud.
This matters more than ever because phones now take almost all of the world's photos. Photutorial estimates about 1.95 trillion photos will be taken in 2026, with roughly 94 percent shot on smartphones. When a format sits on that many devices by default, its quirks reach everyone. If you are unsure whether to convert every photo, our HEIC versus JPG guide explains when keeping the original HEIC makes sense.
Advertisement
How is HEIC different from JPG?
The short version: HEIC is the newer, more efficient format, and JPG is the universal one. HEIC files are typically 40 to 50 percent smaller than the same photo saved as JPG with no visible quality loss, according to Macworld. It pulls that off using the HEVC (H.265) codec, the same compression used for efficient 4K video.
- File size: HEIC is about half the size of JPG at matching quality.
- Color depth: HEIC supports 16-bit color versus JPG's 8-bit, per Apple, so it holds more tones and handles gradients better.
- Extra data: A single HEIC can carry Live Photos, depth maps, and transparency. JPG cannot.
- Compatibility: JPG opens on essentially everything made in the last 30 years. HEIC does not.
So HEIC wins on the technical scorecard, but JPG wins the one contest that matters when you need to share a photo: it just works. That trade-off is the whole reason converting exists.
Why does HEIC cause so many problems?
- Windows cannot open HEIC without installing extra software
- Android does not support HEIC natively on many devices
- Most websites reject HEIC uploads (Instagram, Facebook, and LinkedIn prefer JPG or PNG)
- Email clients often fail to display HEIC inline
- Many photo editing apps do not support HEIC
- Printers and photo labs may not accept HEIC files
The root cause is licensing. HEIC depends on the HEVC codec, which carries patent licensing that Windows and many other platforms do not bundle by default. That is why your PC can open a JPG instantly but stumbles on a HEIC.
How do you convert HEIC to JPG free?
There are several free routes depending on your device. The browser converter is the fastest and needs nothing installed.
Method 1: Browser-based converter
Drop your HEIC photos onto our HEIC to JPG converter. Conversion happens in your browser with no upload to any server. Multiple photos are supported, and you can download them individually or as a ZIP file. Transfer your HEIC files from the iPhone via USB or AirDrop first, then drop them in.
Method 2: Windows 11 with the Microsoft Store extension
Install the free HEIF Image Extensions from the Microsoft Store. Once installed, Windows Photos and File Explorer can open HEIC directly. Right-click a HEIC file and choose "Save as" to export a JPG. This is the best fix if you regularly receive iPhone photos on a PC.
Method 3: Google Photos
Upload your HEIC photos to Google Photos, which stores and displays them correctly. When you download them again, they come down as JPG regardless of the original format. Handy if you already back up to Google Photos.
Method 4: AirDrop to a Mac
AirDrop your HEIC photos to a Mac and open them in Preview, which reads HEIC natively. Go to File, then Export, choose JPEG, set the quality, and save. Macs also auto-convert HEIC to JPG when you AirDrop to a Windows device or email photos with the Share button.
Should you stop your iPhone taking HEIC?
Change the iPhone camera format to JPG
Go to Settings, then Camera, then Formats, and tap "Most Compatible". Your iPhone now saves all new photos as JPG. Existing HEIC photos stay as HEIC, but every future shot is universal JPG.
The only downside is storage. JPG files are larger, so on a 256GB iPhone shooting typical photos you might use an extra 500MB to 1GB a year. For most people who share photos to Windows, Android, or the web often, that trade is well worth never seeing a HEIC error again. If you rarely leave the Apple ecosystem, leaving HEIC on saves the most space.
For one-off conversions or when privacy matters, our browser-based HEIC converter is the fastest option: no software, no account, no upload. For ongoing convenience, switch your iPhone camera format to Most Compatible.
What should you do after converting?
Converted HEIC photos are full-resolution JPGs, often 3 to 6MB each. If you are sharing them or uploading to a website, run them through our image compressor to shrink the file size, or use the converter's quality slider to control output size during conversion. For social media, use our image resizer afterward: Instagram posts need 1080px wide, LinkedIn photos 1200px, and inline email images 600px. If your conversion needs extend to documents, IWantFreePDFTools.com converts and compresses PDFs in the browser the same way.
What else do people ask?
Why do iPhones save photos as HEIC?
Apple made HEIC the default iPhone camera format in iOS 11 in 2017 because it stores photos at roughly half the size of JPG at the same quality. It uses the modern HEVC codec, supports 16-bit color, and keeps Live Photos and depth data in a single file, which saves iPhone and iCloud storage.
Why can't Windows open HEIC files?
Windows does not include HEIC decoding by default because HEIC relies on the licensed HEVC codec. Install the free HEIF Image Extensions from the Microsoft Store to open HEIC, or convert HEIC to JPG in a browser with no software at all.
Does converting HEIC to JPG reduce quality?
At quality 90 percent or higher, the visual difference is minimal and not noticeable to most people. Because JPG is less efficient, the converted file is usually larger than the HEIC, but on screen it looks essentially the same.
How do you stop your iPhone from saving photos as HEIC?
Go to Settings, then Camera, then Formats, and select Most Compatible. Your iPhone saves all new photos as JPG instead of HEIC. This uses a little more storage but means photos open on every device without conversion.
Is HEIC better than JPG?
Technically yes: HEIC gives smaller files, better color depth, and transparency support. But JPG wins on compatibility, opening on any device, app, or website. Keep HEIC to save space on Apple devices, and convert to JPG when you need a photo to work everywhere.