Remove Background and Save as Transparent WebP

A transparent WebP is a WebP image with the background removed via an alpha channel. It works like a PNG but typically produces a smaller file. WebP was developed by Google to compress images efficiently. Unlike JPEG, WebP supports full transparency (lossless alpha), so you can remove a photo's background and save the result as WebP. This Convertify tool creates such cutouts, giving you a transparent WebP ready for the web. Because WebP uses modern compression, it often yields smaller files than PNG for similar images. If you need a transparent PNG instead, try our background remover.

Choosing between WebP and PNG for your background removal depends on the image content. WebP often yields smaller files when the subject has smooth or uniform backgrounds. Convertify's tests show WebP can be 20 to 40% smaller than PNG for typical photos. However, we are honest: if your cutout has very fine hair or highly detailed edges, PNG's DEFLATE compression can sometimes produce a smaller file. Both formats preserve transparency. Try both options in Convertify's UI (choose WebP or PNG) to see which works best. See our background remover for a PNG output if needed.

Transparent WebP works best where the final surface is a website, a web app, or a modern CMS. Hero images and banner graphics benefit most: the subject overlays a colored or gradient background, and the smaller WebP size cuts page weight noticeably on mobile. E-commerce sites see the same effect on product cards and category thumbnails, where dozens of images load together and every kilobyte matters. Blog thumbnails and article header graphics are another natural fit, especially on content sites that serve mobile-first audiences. Testimonials, pricing card illustrations, and progressive web app assets all read the same way: modern browsers render transparent WebP correctly, and the file size advantage translates directly into faster loads. If your original images are very large, resize them first with our image resizer before background removal for the best balance of quality and load speed.

WebP's alpha channel is always stored losslessly, which matters more than it sounds for cutout images. When RGB colors are compressed with lossy mode, the transparency data stays exact. That means your subject's edges remain sharp with no fading, halo artifacts, or shimmer around fine details. Convertify encodes both the alpha channel and the RGB colors losslessly by default for background-removed images. If you need the smallest possible file, run the WebP output through our Compress WebP tool afterward. Even with lossy RGB compression, the alpha channel stays pristine, so your cutout keeps clean edges throughout further processing. This is a real difference from formats like JPEG (which has no alpha at all) and from lossy WebP in some other tools.

Most modern browsers support transparent WebP. Google Chrome and Edge (Chromium) have supported WebP since 2010. Firefox added support in 2019. Safari gained full WebP support in version 14 (late 2020) on macOS and iOS. Opera also supports it. Internet Explorer and very old mobile browsers do not support WebP.

On the platform side, WordPress 5.8 and later accept WebP uploads like any image. Shopify and many CDNs will automatically serve WebP to browsers that can display it. Your images remain PNG for browsers that do not support WebP.

Image editors like Photoshop (2022+), Affinity Photo, GIMP, and Photopea open transparent WebP files natively. Note that some older viewers, like the default Windows photo app, may not render the transparency correctly.

Convertify uses a Rust backend with libvips and an ONNX model (ISNet) to remove backgrounds. When you upload an image, libvips resizes a copy to the model's input size. The ISNet model then predicts a mask of the subject. We scale that mask back to full size, apply it as an alpha channel, and encode the result to WebP. We encode in lossless mode for the transparency (and for RGB by default) to keep quality high. All processing happens in memory and no files are written to disk. The result is a transparent WebP file ready for download. On our server, this process takes about 4.2 seconds on average (95th percentile 9.6s, max ~13s) per image.

Your image is sent to our server over HTTPS and processed entirely in memory. Convertify never writes the image to disk during background removal, and no temporary copy is kept after the WebP is returned. There is no account, so nothing is tied to a persistent identifier. Server logs record only anonymous request metadata (timing, size) with no image data attached. We do not use your images to train the ISNet model or any other model, and we do not share your images with anyone. After the transparent WebP is delivered back to you, all data related to your request is immediately discarded from memory.

Convertify accepts HEIC, HEIF, PNG, JPG, JPEG, WebP, AVIF, TIFF, BMP, and GIF as input, up to 20 MB per image. You can process up to 10 images at a time in one batch. The output is always a transparent WebP at your original resolution, with the same aspect ratio as your input. If your input file is larger than 20 MB, use our image resizer to shrink it first. After background removal, if you need the result in a different format for a specific tool, run the WebP through our WebP to PNG or WebP to JPG converter. To further reduce file size, use Compress WebP.