HEIC to WebP: a web-ready still from a phone

A page or a CDN wants WebP, and the camera file is still a HEIC. Convert that one photo in the browser and publish the WebP, while the HEIC stays the original. This is the WebP variant of the HEIC converter, and it runs in the browser only. The quality slider goes from 1 to 100 and starts at 85. The tool decodes the HEIC to a PNG, then writes WebP with canvas.toBlob at quality divided by 100, so the default 85 becomes 0.85. One file per run. A .mov sitting beside a Live Photo is video, so add the HEIC still, not the movie. Memory on the device is the practical limit. WebP is the file you publish. Keep the HEIC if you might crop, print, or encode again later. Look at the WebP at 100 percent before you upload it to the site, and lower the slider only when the byte budget is real. Start at 85 and look at the WebP at the size the page will show it. Type in a screenshot and a fine edge in a product photo are the places a lower setting shows first. Move the slider only when the byte budget is real, then encode again from the HEIC, which stays on your device as the camera original. The slider runs from 1 to 100. The converter decodes the HEIC to a PNG in the browser, draws that onto a canvas, and writes WebP with canvas.toBlob at the slider divided by 100, so 85 becomes 0.85. One file is the run. A .mov beside a Live Photo is video, so add the still. WebP is the file you put on a page, in a CDN, or in a folder a site already accepts. JPEG is the sibling when a legacy inbox is the destination, and PNG is the sibling when you want a lossless edit master. This page is the publish step: one photo, a quality you can see, and a download you check before you replace a live image. If the tab feels tight on a very large still, convert the photo you are about to publish and leave the rest of the roll for a second pass. Browser-only means the encode happens on the device you are using, and the practical limit is memory in that tab.