PixHeic
Convert HEIC to WebP for Webflow Websites
Webflow's asset manager takes JPG, PNG, SVG and WebP — and turns away the HEIC files your phone produces. Convert first and keep the site light.
100% Local — Files Never Leave Your Browser
Convert HEIC to WebP now
Drop your .heic files into the converter and download WebP versions at the original resolution. Decoding runs on your device via WebAssembly, so the photos are never uploaded to a server.
Open the converter Free, no sign-up, no watermark. Conversion happens on your device.Zero uploads
The decoder runs in your browser via WebAssembly. Your files never touch a server, so there is nothing to retain, leak or subpoena.
Assets that stay light
Webflow counts asset weight against your site's performance budget. WebP gets more images in for the same page weight.
Straight into Assets
Converted files drag into the Assets panel and behave like any other image, including in CMS collection fields.
Why the Assets panel refuses your photos
Webflow validates uploads against a fixed list of formats. HEIC is not on it, so the file is rejected outright — usually with a terse error that gives no hint the problem is the format your iPhone chose for you.
WebP is on the list, and Webflow serves it happily to every browser its hosting targets. That makes it the natural destination format rather than a compromise.
Designing with a performance budget
Webflow's own image optimisation helps, but it works from what you give it. Uploading a 6 MB JPEG hero and hoping the CDN saves you is a worse starting point than uploading a well-chosen WebP.
Conversion never changes pixel dimensions here, so crop to your intended display size in Webflow or beforehand — that, plus WebP, is most of the image performance story on a marketing site.
Frequently asked questions
What image formats does Webflow accept?
Webflow's asset manager accepts JPG, PNG, GIF, SVG and WebP. HEIC is not supported, so iPhone photos need converting before upload.
How much smaller is WebP than JPEG?
Typically 25–35% smaller at visually equivalent quality, though the gap varies with the image: photographs with smooth gradients benefit most, while noisy or highly detailed shots benefit least. Measure with your own images rather than trusting a single headline figure.
Is anything uploaded to a server?
No. PixHeic decodes your file with a WebAssembly build of libheif that runs inside your own browser tab, so the image is read from your device into memory and converted there. You can confirm it in your browser's Network tab, or disconnect from the internet after the page loads and convert anyway.