If you take photos on an iPhone and publish anything on the web, HEIC vs WebP is a comparison worth your time. Both formats were built to be smaller and smarter than JPEG, but they live in completely different worlds. HEIC rules the iPhone camera roll. WebP rules the open web. Mixing them up is how photos end up broken on websites.
This guide breaks down exactly what each format is, where each one wins, and what to do with your iPhone photos when a website is involved. Spoiler: the answer is almost never “upload the HEIC.”
Meet the two formats
HEIC (High Efficiency Image Container) has been the iPhone’s default photo format since 2017. It is based on HEVC video compression, which is why a full 12MP photo fits in about 1.5MB. It is a brilliant storage format for your phone, and it even carries extras like Live Photos, bursts, and depth data.
WebP is Google’s answer to the same problem, launched in 2010 and made royalty-free for everyone. It offers both lossy and lossless compression, transparency, and animation, and it typically lands 25 to 35 percent smaller than an equivalent JPEG. It is the web-publishing format of choice for performance-conscious sites.
HEIC vs WebP: side-by-side comparison
| Feature | HEIC | WebP |
|---|---|---|
| Created by | MPEG, adopted by Apple (2017) | Google (2010) |
| Compression | HEVC-based, very efficient | Lossy and lossless modes |
| Transparency | Supported, spotty outside Apple | Full alpha channel support |
| Browser support | Safari only, roughly one in eight browsers | All modern browsers (Chrome, Firefox, Edge, Safari) |
| Licensing | Patent-encumbered (HEVC royalties) | Royalty-free |
| Color depth | Up to 16-bit per channel | Mostly 8-bit |
| Best for | iPhone photo storage | Website images, web publishing |
Why HEIC loses on the web
HEIC is technically the better compressor. At the same visual quality, a HEIC photo can be around 50 percent smaller than a JPEG. So why is it not the web’s favorite? Two words: compatibility and patents.
Only Safari displays HEIC natively, and even that support arrived relatively recently. Chrome, Firefox, and Edge will simply show a broken image. Add in the HEVC patent pool, which makes browser vendors wary of full support, and HEIC becomes a format with a fence around it. A beautiful photo that nine out of ten visitors cannot see is not a small file, it is a missing photo.
Why WebP wins for websites
WebP has what HEIC lacks: it works everywhere that matters. Every modern browser renders it, every major CMS handles it, and it is royalty-free, so nobody pays to use it. For a blogger, shop owner, or anyone publishing images online, that combination of smaller files and universal support is exactly what faster pages need.
Google’s PageSpeed and Core Web Vitals reward smaller images, and WebP delivers 25 to 35 percent savings over JPEG with the same visual quality. That is a free speed boost for your site, and speed keeps visitors around.
What should you do with iPhone photos for the web?
If you publish photos taken on an iPhone, never upload the HEIC directly. Convert first. Here is the simple decision:
Choose WebP when
You run a website or blog and want the smallest files with broad browser support. Convert your HEIC photos to WebP before uploading, ideally at a quality setting around 80, and resize to your actual display width. Your pages load faster and your images look identical.
Choose JPEG when
You need the truly universal option. JPEG opens on every device, every email client, and every legacy system ever made. If you are unsure what your audience uses, JPEG never fails. Our free HEIC to JPG converter turns your iPhone photos into share-ready JPEGs right in your browser, no account needed.
A quick note on AVIF
You may have heard of AVIF, the newest contender. It compresses even better than WebP and is also royalty-free. Its only downside is slower encoding and slightly narrower browser support, around 93 to 96 percent versus WebP’s 97 percent. For most publishers today, WebP remains the safest default, with AVIF as the exciting upgrade when your tooling supports it.
Curious how HEIC stacks up against the other classic format? See our HEIC vs PNG comparison, and our practical HEIC to TIFF guide for when print quality is what you need.
Frequently asked questions
Can I use HEIC images on my website?
Technically some browsers will show them, but most will not. Only Safari renders HEIC natively. Convert HEIC to WebP or JPEG before publishing, every time.
Is WebP really smaller than HEIC?
Not usually. HEIC has the edge in raw compression efficiency thanks to HEVC. WebP wins on compatibility and freedom from patents, which matters far more for web publishing.
Why does my website show a broken image icon for iPhone photos?
Almost certainly because the file is still in HEIC format. The browser cannot decode it. Convert to WebP or JPEG and re-upload.
Should I convert HEIC to WebP or JPEG?
For web pages where speed matters, WebP. For maximum compatibility with everything, including email and older systems, JPEG. Both beat uploading HEIC.
Does converting HEIC to WebP lose quality?
Any lossy-to-lossy conversion involves a tiny quality cost. At sensible quality settings it is invisible to the eye. For archival purposes, keep the original HEIC too.
The takeaway
HEIC and WebP are both excellent modern formats, but they serve different masters. HEIC keeps your iPhone library small. WebP keeps your website fast and viewable by everyone. The rule is simple: keep HEIC on the phone, convert to WebP or JPEG for the world. Your visitors will thank you with their attention.
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