VocabSieve (formerly ssmtool) is a universal, cross-platform, language-agnostic, clipboard-based tool that helps you generate Anki flashcards from any source. It is free software under the GNU GPLv3 license, meaning you are free to use, modify, and distribute it, even commercially, as long as it remains under the same license. It is designed to be simple to set up and straightforward, with the ultimate goal of enabling seamless sentence mining during immersion study (reading and watching).