The short answer is no. ThumbsPlus does not natively support the WebP format. According to a forum post by a ThumbsPlus user, the developer promised WebP and HEIC support in version 11, but version 11 never materialized. The current latest version is ThumbsPlus 10 (Build 4015), released in June 2018, and it does not include WebP support. This lack of native support is a significant limitation for users who rely on WebP images.
Even though the software cannot open WebP files natively, it does not mean users of ThumbsPlus cannot organize them. Below are two primary methods to manage WebP files if you are committed to the platform.
ThumbsPlus delegates decoding to the host OS. If your Windows 10 or 11 has the "WebP Image Extensions" installed from the Microsoft Store, ThumbsPlus v10 may suddenly "see" WebP files. If you are on a clean Windows install without that extension, ThumbsPlus remains blind. thumbsplus webp
: If you are using an older version that does not natively display WebP, you may need to use external tools like Google's cwebp Android Studio's converter
Recent iterations, specifically ThumbsPlus 10 SP2 and newer releases, have integrated updated graphic libraries to natively decode and encode WebP images. If you are running an older version (such as ThumbsPlus 7, 8, or early builds of 9), upgrading to the latest version is the most reliable way to secure official support. With an updated version, ThumbsPlus can: The short answer is no
Managing a massive library of digital images requires a fast, reliable, and versatile media manager. For decades, has been a go-to desktop solution for photographers, graphic designers, and collectors who need to organize, preview, and batch-edit their graphics.
Advanced users can set up ThumbsPlus’s “Open With” feature: The current latest version is ThumbsPlus 10 (Build
The most reliable way to get WebP working in ThumbsPlus is to install a system-wide codec. This allows ThumbsPlus to "hand off" the file to Windows for rendering.
: Open ThumbsPlus and navigate to Options →right arrow File Mask / Associations .
format can be limited depending on which version you are using. WebP Support in ThumbsPlus Legacy Versions
WebP lossless images are roughly 26% smaller in size compared to PNGs, while still supporting alpha channel transparency.