The 事實查核助手 is a free Chrome add-on designed for instant verification of text on webpages. Users can select any text and receive immediate feedback on its credibility by clicking a trigger button. This tool consolidates information from various trusted fact-checking sources, including Cofacts, the Taiwan FactCheck Center, and Google Fact Check Tools, allowing for a comprehensive understanding of the content's accuracy. Additionally, it offers real-time news verification from reliable media outlets, making it an essential tool for discerning truth in information.

One of the standout features of this add-on is its optional AI-assisted analysis, which can be activated by setting up a Google Gemini API key. This feature categorizes information into RUMOR, FACT, OPINION, or OUTDATED, providing users with reasoning for the classification. The results are visually represented with color-coded indicators, enhancing clarity in understanding the verification outcome. With a strong emphasis on privacy, the add-on ensures that no personal data is collected or sold, making it a secure choice for users concerned about their information.