Convert HEIC to WebP for smaller web images
WebP is a good fit for photos on websites. Set a quality from 1 to 100, see how big the result is next to your HEIC, and download it.
Drop HEIC photos here, or pick them from your device
Stays on your device. Nothing is uploaded.
Processing on this device
How to use it
- Add one or more HEIC files.
- Set quality. The default is 82, a sensible start for photos on a page.
- Choose colour and metadata options. Date and camera data is opt-in, and GPS has its own box.
- Convert and compare the size shown beside each result, then download.
What it keeps
- Pixel dimensions and the visible orientation.
- Transparency, because WebP supports an alpha channel.
- Accurate colour, with pixels converted to sRGB from the embedded profile by default.
- Optional date, camera and exposure fields.
What it removes or changes
- WebP at normal settings is lossy, so this is a further lossy step after HEIC.
- The size comparison is shown so you can see the real outcome instead of assuming. Some photos come out smaller than the HEIC, others do not.
- Output is 8-bit. HDR gain map brightness is not carried.
- Location is removed unless you tick the GPS box.
Limits
- The encoder is libwebp compiled to WebAssembly and runs in your browser, so very large photos take a while.
- Up to 200 MB per file, 100 megapixels, 200 files per batch.
- Only the primary image is converted, not depth maps or Live Photo video.
Compatibility
WebP displays in current browsers and is accepted by most modern CMSs and image tools. Older desktop software, some email clients and several government or print upload forms still refuse it. If a recipient cannot open WebP, send JPG.
Privacy
The libwebp encoder is served from this domain and runs in a Web Worker. Your HEIC stays in memory in your tab and is never sent anywhere. Close the page and it is gone.
WebP, AVIF or JPG for web photos
JPG is the safest, WebP usually gives smaller files at similar looks and is widely supported by browsers, and AVIF can go smaller still but encodes slowly and is not readable by very old software. For a website you control, WebP is a comfortable middle. For anything you send to people, JPG avoids support questions. The comparison panel in this tool shows what you actually get for your photo.
Troubleshooting
The WebP is bigger than my HEIC.
HEIC is very efficient. Lower the quality, or keep the HEIC and only convert copies that must be WebP. The size comparison tells you when no saving was made.
A program says it cannot open the WebP.
That program predates WebP support. Convert to JPG instead.
Colours look off in the WebP.
Keep the default sRGB conversion. Keeping the Display P3 profile can look flat in apps that ignore profiles.
Frequently asked questions
What WebP quality should I use?
The default of 82 works for most photos. Try 70 to 75 for thumbnails and go to 90 or higher only when you can see artefacts.
Does WebP keep transparency?
Yes. If the HEIC has an alpha layer, the WebP keeps it.
Is WebP always smaller than HEIC?
No. HEIC is often already compact. Check the size comparison on the result.