HEIC to JPG — Convert iPhone HEIC Photos to JPG Online

HEIC (High Efficiency Image Container) is Apple’s default photo format since iOS 11 and macOS High Sierra. It uses HEVC intra-frame compression to store images at roughly half the file size of JPEG at equivalent visual quality. The format is technically superior — it supports 16-bit depth, wide colour gamut, HDR, alpha channels, and multiple images in a single file — but it is not universally supported. Every third-party app, web service, and printing workflow expects JPG.

The problem with HEIC is the friction it creates. You take photos on your iPhone, airdrop or sync them to another device, and then find that the receiving app cannot open them. Microsoft requires users to install a paid codec from the Store. Older web apps and CMS platforms reject HEIC uploads outright. Many email clients render HEIC as a broken image. Converting to JPG is the path of least resistance — JPG is universally decodable, universally uploadable, and universally printable.

This tool handles the conversion directly in your browser. The HEIC file is read into memory, decoded by a ~1.4 MB WebAssembly module built from the libheif library (the same engine that powers Preview.app, Photos.app, and heif-convert on the command line), and re-encoded as JPEG via the browser’s Canvas API. The file never touches a server. There is no upload, no account, no file-size limit beyond what your device memory can hold. The result is a standard JPEG that any device or application can open.

For workflows that require a lossless output format, use the companion HEIC to PNG tool instead. PNG preserves every decoded pixel faithfully, but the file will be significantly larger than the source HEIC. For most sharing and uploading use cases, JPG at 92% quality is the right trade-off — visually indistinguishable from the original at a fraction of the size.