NeoStream Video Grabber is a JavaScript monorepo containing an Electron and React desktop download manager and a Chrome Manifest V3 extension. It is built with npm workspaces, Vite, Zustand, electron-store, and electron-builder, and implements DOM and network media detection, pending queue retry, a token-protected localhost bridge, direct downloads, authorized HLS and M3U8 downloads via FFmpeg, progress parsing, pause, resume, cancel, retry, persistent download history, duplicate prevention, tray and menu-bar behavior, sleep prevention during active downloads, and cross-platform packaging scripts. The extension is currently installed manually from the .crx file until the store link is available.