Worth Hole is a Chrome add-on developed by large.town.sky. It is a two-way link and note-taking tool that allows users to add notes and bi-directional links anywhere on the web for future reference. This tool supports HTML and PDF on the web, making it versatile for various types of content.

One of the standout features of Worth Hole is its compatibility with smartphones, although some functions may be limited. This allows users to access their notes and links on the go. Additionally, Worth Hole enables users to share notes between multiple personal machines or multiple users, making it a great collaborative tool.

Whether you want to summarize research items, keep track of multiple frequently visited websites, or simply organize your online activities, Worth Hole provides a convenient solution. It has received favorable reviews among developers, highlighting its usefulness and reliability.

Please note that Worth Hole is a free add-on in the Browsers category, specifically under Add-ons & Tools.