CarveWords is a browser extension available on the Chrome platform. Developed by comprehensible-reader-generator, this free program falls under the category of Browsers, specifically Add-ons & Tools. CarveWords aims to help users expand their vocabulary in any language by practicing retrieval while they read.

The main feature of CarveWords is the highlighting of new words based on the user's vocabulary level. As you browse the web, the extension compares the words in an article to your vocabulary level and instantly shows what percentage of them are familiar to you. This allows you to identify and focus on unfamiliar words, helping you to learn and retrieve them.

CarveWords also provides a feature to keep track of learned, known, and forgotten words, allowing you to practice retrieval. You can adjust the number of repetitions and size of intervals to fit your learning habits, making the extension customizable to your preferences.

Please note that CarveWords is currently in the beta stage, so some roughness on the edges can be expected. However, the developers are actively working on improving the extension and encourage users to provide feedback.

Learn more about the features of CarveWords in the options of the extension or on the developer's website.