JJaKaK
Simple timer. Implemented as PWA, so you can install it as an app directly from your browser.
ttodo
Simple to-do management app. Uses local storage to save data.
BbaKey
Shortcut key search service. Quickly find keyboard shortcuts for various programs.
Extractor
Video subtitle extraction service. Extract subtitles from YouTube and other video platforms.
Zheon
YouTube video AI summarization service. Quickly grasp key content of long videos.