Read Guide is a reading support tool designed for Chrome users. Developed by 梅ほい, this free add-on aims to enhance your reading experience by hiding the surrounding lines when you want to focus on a specific line.

To use Read Guide, simply navigate to the desired page and select "Reading Guide" from the toolbar. A menu will appear, allowing you to customize various settings before pressing the execute button. You can adjust the size and color of the blindfold gap to suit your preferences. The tool also supports vertical writing, making it versatile for different types of content.

Please note that Read Guide may not work on certain special pages. Additionally, on embedded pages, its functionality may be limited due to Chrome's built-in PDF viewer. However, as a workaround, the tool can still be used on PDF pages by combining it with other PDF viewers as an extension.

Overall, Read Guide is a useful tool for individuals with dyslexia, visual impairments, or difficulty maintaining focus while reading. Give it a try and enhance your reading experience on Chrome!