日文小書僮 is a free Chrome add-on developed by Michelle Chen. It falls under the category of Browsers and is classified as an Add-ons & Tools subcategory. This program is designed to assist users in learning Japanese by providing the pronunciation of Japanese words in short texts.

When browsing Japanese websites and encountering a particular Japanese text that you want to know the pronunciation of, simply select the text and right-click. Choose "以日文小書僮解析" (Analyze with 日文小書僮), and you will be automatically redirected to the "學練日語" (Learn Japanese) website's page for 日文小書僮. The tool will then automatically annotate the pronunciation of the selected Japanese text.

In the latest version of 日文小書僮, the web address of the tool has been modified for improved functionality and user experience.