Comparisons
JPG vs PNG vs WebP vs HEIC: Which Image Format Should You Use?
A clear comparison of the four most common photo formats — compression, quality, transparency, compatibility and the best use for each.
· 2 min read
HEIC to WebP Converter
Turn iPhone HEIC photos into lightweight WebP images for websites, blogs and online stores — without uploading them anywhere.
Processed locally in your browser
Converted on your device. Your photos never leave this browser.
How to use the HEIC to WebP
- 1
Add your HEIC photos
Drop HEIC files onto the converter or select them from your device.
- 2
Choose size and quality
WebP is preselected. In Options, set a maximum width such as 1920 px and pick a quality level.
- 3
Download WebP images
Convert and download individual files or all images in a ZIP ready to upload to your site.
Why use this tool
- Smaller than JPGWebP usually produces noticeably smaller files than JPG at similar visual quality.
- Supported by every modern browserChrome, Edge, Firefox and Safari all display WebP images.
- Transparency supportUnlike JPG, WebP can keep transparent backgrounds from HEIC images.
- Resize for the webDownscale large iPhone photos to web-friendly dimensions in the same step.
Why use WebP on websites?
Images are often the heaviest part of a web page. WebP was designed to reduce that weight: at comparable visual quality, WebP files are typically smaller than JPGs. Smaller images load faster, use less mobile data and help Core Web Vitals such as Largest Contentful Paint.
Every current major browser supports WebP, and most content management systems — including WordPress, Shopify and Squarespace — accept WebP uploads.
Recommended settings for web images
- Size: a 12- or 24-megapixel iPhone photo is far larger than any screen needs. For full-width images choose Max 1920 px; for content images Max 1280 px is usually enough.
- Quality: Balanced is a good default for photos on the web. Use High for hero images and photography portfolios.
- Metadata: choose Remove all for public web images. It removes camera details and GPS location and saves a few kilobytes.
Browser support and local conversion
Chrome, Edge and Firefox can create WebP files natively, so conversion is instant. Safari cannot yet create WebP images from a canvas, so HEIC.IS automatically switches to a WebAssembly WebP encoder on iPhone, iPad and Mac Safari. Either way the conversion runs on your device.
WebP or AVIF?
AVIF can compress even further than WebP, but encoding is slower and support in older software is weaker. WebP remains the most practical modern format for most sites. If you need maximum compatibility — for example for email newsletters — use HEIC to JPG instead.
Frequently asked questions
Is WebP better than JPG?
For websites, usually yes: WebP files are typically smaller at similar quality and support transparency. For emailing or printing, JPG is still more widely accepted.
Does Safari support WebP?
Yes, Safari displays WebP images on iPhone, iPad and Mac. HEIC.IS also creates WebP files in Safari using a built-in WebAssembly encoder.
What size should web images be?
Rarely more than 1920 px wide. Use the Size option to downscale iPhone photos while converting — this saves far more space than lowering quality.
Will WebP keep transparency from HEIC?
Yes. WebP supports an alpha channel, so transparent areas are preserved.
Related guides
Image formats
The Best Image Formats for Websites
WebP, AVIF, JPG, PNG, SVG — and why HEIC doesn't belong on the web. A practical guide to choosing image formats for fast, good-looking websites.
· 2 min read
Guides
How to Reduce HEIC File Size (Without Ruining Your Photos)
HEIC is already efficient, so shrinking iPhone photos is mostly about resolution and format. Here's what actually works for email, uploads and saving storage.
· 2 min read