WebP vs HEIC: Format Differences, Compression, and Compatibility

WebP is the go-to format for web images with 96% browser support, lossy and lossless modes, and transparency. HEIC produces smaller files (up to 50% smaller than JPEG) but only works natively on Apple devices and has almost zero browser support. If your images are going on a website, use WebP. If you are storing photos on an iPhone, HEIC is fine until you need to share them outside the Apple ecosystem.

Compression Performance

HEIC typically compresses 40-50% better than JPEG at equivalent quality. WebP compresses 25-34% better than JPEG in lossy mode and about 26% better than PNG in lossless mode. Head-to-head, HEIC edges out WebP on raw compression efficiency, especially for photographs. But the difference is small enough that WebP's compatibility advantage almost always outweighs it.

Browser and Device Support

WebP is supported by Chrome, Firefox, Edge, Safari, and virtually every modern browser. About 96% of web users can view WebP images natively. HEIC has essentially no browser support. Safari on macOS can display HEIC, but Chrome, Firefox, and Edge cannot. If you embed an HEIC image on a webpage, most visitors will see a broken image. This alone makes WebP the clear winner for anything web-facing.

Features and Flexibility

Both formats support transparency (alpha channel) and animation. HEIC also supports HDR, 16-bit color depth, and storing multiple images in one file (bursts, live photos). WebP supports 8-bit color with transparency, lossy and lossless compression, and basic animation. For web publishing, WebP covers every common use case. HEIC's extra features matter mainly for photography workflows on Apple hardware.

Licensing

WebP is open-source and royalty-free, developed by Google. HEIC is based on HEVC/H.265, which carries patent licensing costs. While Apple absorbs these costs for its own devices, the licensing situation makes HEIC adoption risky for third-party software and browsers. This is a major reason why browser vendors have been slow to add HEIC support and why AVIF (royalty-free, AV1-based) is gaining ground as a next-gen alternative.

When to Use Each

Use WebP for websites, web apps, email images, and any content served over the internet. Use HEIC for local storage on Apple devices where space savings matter. If you receive HEIC photos and need to use them on the web or share them widely, convert them to JPG or WebP first.

Need to convert? Our Image to WebP converter handles any image format in your browser. Got HEIC files from an iPhone? Convert them with our HEIC to JPG tool. For more image format breakdowns, see WebP vs PNG and HEIF vs HEIC.