Thumbsplus - Webp

Note for security: Always verify the hash of downloaded DLLs. A malicious DLL could compromise your asset management.

Solution: Your version lacks the encoder. Upgrade to ThumbsPlus v11 or use the libwebp plugin method described in Part 4. Alternatively, save as PNG/JPEG first, then use a free tool like cwebp (command line) post-process. thumbsplus webp

ThumbsPlus relies on the Windows Shell. You need to teach Windows to render WebP thumbnails. Note for security: Always verify the hash of

ThumbsPlus is not a recommended tool for WebP management unless you are willing to pre-convert all your WebP files to a classic format. For users with legacy databases who occasionally encounter a WebP file, the best practice is to convert it outside of ThumbsPlus and then re-import it. If WebP is becoming your standard format, migrating to a more up-to-date image manager is the efficient long-term solution. Solution: Your version lacks the encoder

Last updated: 2025 – Based on feature sets of ThumbsPlus v11 and common user reports.

Here’s a detailed feature concept for ThumbsPlus (a popular image management and batch processing tool) that adds full WebP support across its core functionality.