Digital communication on social media sites like Facebook often shows casual language patterns, which cause changes in word structures among people from Generation Z. This study is focused on creating an interactive digital dictionary for standard Indonesian words, using the Book Creator tool, with the goal of helping fix mistakes in word forms that often happen when people use social media. The product was created using the ADDIE method, which focuses on the Analysis, Design, and Development phases.It was built based on real mistakes found in Facebook posts and comments. A group of nine experts from fields like media, teaching resources, and language were asked to review the work.Then, fifteen people from Generation Z took part in a small test to see how practical the work was. The quantitative analysis showed that the material experts found it very valid with 90.00%, the language experts also rated it as very valid with 94.67%, and the media experts gave it a valid score of 74.67%, which is good after making some small changes. End-user testing showed a very high practicality score of 91.47%. Book Creator's ability to handle different types of content helped connect casual online language with proper grammar rules, showing that the tool is ready for more testing and use in education.
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