Moodle Cleaner is a free Chrome add-on designed to improve the user experience of the HKU Moodle page by offering convenient navigation features. This tool allows users to filter and display courses based on specific academic years, semesters, and course code prefixes, enabling a more tailored view of their course offerings. Users can easily input their desired filters, and the Cleaner will adjust the displayed courses accordingly, ensuring that only relevant information is presented.

Additionally, Moodle Cleaner enhances navigation by providing direct links to filtered courses in the top navigation bar, allowing seamless movement between pages without returning to the homepage. The user configuration settings are saved to the cloud and linked to the user's Google account, ensuring that preferences are synchronized across all devices. This functionality greatly facilitates access to course materials and streamlines the overall Moodle experience for users.