Convert Apple iPhone photos to widely supported formats locally.
Drop HEIC files here
We can process multiple photos at once
Apple iPhones capture photos in High Efficiency Image File format (`.heic`) to conserve internal device storage. However, non-Apple operating systems (Windows, Linux), educational portals, and web services frequently reject HEIC uploads. ImageUp compiles a high-performance libheif WebAssembly decoder directly into your browser, allowing you to convert batches of HEIC/HEIF photos to universal JPEGs or lossless PNGs with zero server uploads.
Choose one or multiple `.heic` or `.heif` files from your iPhone, Mac, or PC.
Choose **JPG** for universal compatibility across all devices, or **PNG** for lossless quality.
Click Convert to decode the files locally via WebAssembly and download your converted images.
Runs the industry-standard HEIF decoding library directly in your browser tab without native software installation.
Queue up dozens of camera roll photos at once and download each converted asset individually.
Your private iPhone photos are decoded strictly inside local browser memory. No files are uploaded to cloud servers.
Starting with iOS 11, Apple enabled High Efficiency Image Container (HEIC) by default because its advanced HEVC compression saves photos at roughly 50% smaller file sizes than standard JPEG with equal or better color depth.
Our converter decodes the full 16-bit color matrix and encodes output JPEGs at 92% high-fidelity quality, ensuring that photos look indistinguishable from the camera roll original.
Yes! Because the decoder executes inside the web browser, this tool works flawlessly on Windows 10/11, macOS, ChromeOS, and Linux without installing third-party codecs or software.
No. The WebAssembly decoder runs 100% on your local computer's processor. No photos are ever uploaded or transmitted across the internet.
HEIC saves storage on the iPhone and causes headaches everywhere else: Windows machines, older operating systems, and web portals still reject the format.
This converter produces universal JPEG or PNG files in the browser, no software install and no premium converter. Batch mode handles a whole album at once.
The conversion runs on your computer, so photos never upload, there's no slow transfer over a weak connection, and the output downloads instantly.
Related reading: converting HEIC photos to JPG.