Convert HEIC to WebP

Convert iPhone HEIC photos to WebP online, free and 100% in your browser. No upload, no signup — get photos that open anywhere in seconds.

How to convert a HEIC photo

  1. Drop or pick a HEIC or HEIF photo from your iPhone or camera.
  2. WebP is already selected as the target; tune the quality slider if you like (default 80).
  3. Convert and save. The photo now opens on any device or app.

Why convert HEIC?

HEIC is the space-saving format iPhones shoot by default — efficient, but most websites, Windows PCs and older apps can't open it. WebP is a modern web format that is typically 25-35% smaller than JPG or PNG at the same quality, with transparency.

Converting to WebP keeps the quality at a noticeably smaller size than JPG — the right choice when the photo is headed for a website.

OptImg decodes the HEIC right on your device and re-encodes it locally, so your photo is never uploaded — unlike most online HEIC converters, which send every image to their servers. That's also why there's no queue and no size limit beyond your device's memory.

Frequently asked questions

Are my iPhone photos uploaded to a server?
No. The HEIC-to-WebP conversion runs entirely in your browser: your photo never leaves your device, there's no queue, and no size limit beyond your device's memory.
Why won't my HEIC photos open in the first place?
HEIC is Apple's default camera format, and most browsers, Windows PCs and older apps can't open it, largely for licensing reasons. Converting to WebP fixes that for good — this tool brings its own HEIC support, so it works in any modern browser.
Will converting HEIC to WebP lose quality?
WebP is lossy, tuned to a visually transparent default (quality 80) you can raise or lower. It usually lands much closer to the HEIC's size than a JPG would.
Is the HEIC to WebP converter free?
Yes: completely free, with no signup, no watermark and no cap on how many photos you convert. There's nothing to install; it runs in your browser.