Wander is a decentralized tool that allows users to explore the small web by discovering random personal websites from the Wander community. It consists of two files, an index.html for the Wander console and a wander.js where users link to other Wander consoles. The tool is fully decentralized, and anyone can host it on their own website. Users can wander to neighboring consoles by clicking on links, and the host console can fetch recommendations from other consoles recursively.