Which is better for the web: WEBP or JPG from HEIC?

WEBP. At the same visual quality, WEBP files are typically 25-35% smaller than JPG, which means faster page loads. All modern browsers display WEBP natively.

Does the conversion upload my photos?

No. The HEIC decoder and WEBP encoder both run in your browser via JavaScript — photos never leave your device.

Why is the first HEIC conversion slower?

The first conversion downloads a small open-source HEIC decoder library (about 1 MB) to your browser. After that, conversions run instantly without re-downloading.

Convert HEIC to WEBP Online Free

Putting iPhone photos on the web? AllConvert converts HEIC to WEBP instantly, right in your browser — giving you the smallest files at great quality. No upload, no account.

Try It Now — Convert HEIC to WEBP

Why convert HEIC to WEBP?

Both HEIC and WEBP are modern, efficient formats — but only WEBP works in web browsers. If your destination is a website, blog, online store or web app, WEBP gives you the best of both worlds: the small file sizes you are used to from your iPhone, in a format every browser can actually display. Compared to converting to JPG, WEBP files are typically another 25–35% smaller.

What happens during the conversion?

AllConvert decodes the HEIC using a small open-source library downloaded on first use (about 1 MB), then re-encodes it as WEBP at 92% quality. Everything runs locally in your browser — your photo is never uploaded to a server.

Other options for iPhone photos

Sharing by email or chat? HEIC to JPG is the most universally compatible. Planning to edit the photo? HEIC to PNG keeps every pixel lossless.

How to convert

Open AllConvert and drop your HEIC file onto the page.
Select WEBP from the format dropdown on the file card.
Click Convert and download your result.

The entire process runs locally in your browser. Nothing is uploaded, and it works on desktop and mobile, in Chrome, Firefox, Safari, and Edge.

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