HEIC to JPEG & PNG Converter: Free, No Upload, No Software

How the conversion works

Conversion runs on a WebAssembly build of libheif, the same decoding library that underpins HEIC support on platforms that handle it natively. Drop or select one or more .heic or .heif files, and each one decodes and re-encodes into your chosen output format without ever leaving your device. Every file in the batch gets its own thumbnail and status, so you can watch conversion progress individually rather than waiting on one combined spinner for the whole set. Switch the output format after conversion and the tool automatically re-converts everything already in the list, so you never end up downloading a file labeled JPEG that's actually still PNG under the hood.

Batch conversion and downloads

Add as many photos as you need in one go. Each finishes independently, and once more than one file is done, a single button lets you download the whole batch as a ZIP instead of clicking download on each thumbnail individually. If a specific file fails to convert, an error message appears next to it while the rest of the batch keeps processing, so one corrupted or unusual file doesn't block the others.

PNG vs. JPEG

PNG is lossless, so you keep every pixel of the original image with no compression artifacts, and it supports transparency if your source photo has any. The tradeoff is a larger file. Choose PNG when you're archiving a photo, editing it further, or need it pixel-perfect.

JPEG compresses the image and produces a much smaller file, which matters when you're emailing a batch of photos or uploading to a site with a size limit. The quality slider controls how aggressive that compression is. A quality setting between 85 and 95 percent looks essentially identical to the original for most photos while still cutting file size substantially; drop below that and you'll start to notice blocky artifacts around fine detail and sharp edges.

Tips for best results

• 🖼️Choose PNG for screenshots, graphics, or any photo you plan to edit again later, since re-compressing a JPEG repeatedly compounds quality loss.
• 📉For photos headed to social media or email, JPEG at 85 to 90 percent quality gives you the smallest file with no visible difference.
• 📦Converting a whole camera roll export at once works better as a ZIP download than downloading dozens of files one by one.

Why iPhones use HEIC

Apple switched to HEIC because the underlying HEVC codec compresses far more efficiently than JPEG's decades-old algorithm, so a HEIC photo often takes up roughly half the storage of a visually similar JPEG. On a phone with limited storage and a camera capturing photos at high resolution constantly, that difference adds up fast across a full camera roll. The catch is that HEVC support on the decoding side isn't universal the way JPEG's has been since the 1990s. Apple's own devices, along with a growing number of modern apps, handle HEIC natively. Windows historically required a separate paid codec, and countless web forms, upload widgets, and older software still simply reject the format outright, which is exactly the gap this converter closes.

Common use cases

People reach for this tool most often right after transferring photos off an iPhone onto a Windows PC and discovering half of them won't open. Others hit it while trying to upload iPhone photos to a site or app that rejects HEIC uploads outright, from a printing service to an old forum. Freelance photographers and designers who receive HEIC source photos from clients use it to convert a whole shoot to JPEG or PNG before dropping the files into an editing workflow that doesn't recognize the original format. In all of these cases, the underlying need is the same: a photo that looks fine on an iPhone but won't open anywhere else, converted to something that will.