Kethsar

Kethsar is a small, developer-focused publisher whose only public offering is ytarchive, a command-line utility engineered to grab YouTube live-streams and premieres while they are still being broadcast. Built for archivists, data hoarders and researchers who need to capture ephemeral content before it disappears, ytarchive negotiates the same adaptive streaming protocols used by the YouTube player, assembling separate audio and video fragments into a single, playable file without waiting for the broadcast to end. Typical use cases range from preserving 24-hour charity streams and political debates to backing up classroom webinars or gaming marathons that the creator may later delete or set to private. Because the tool runs headlessly it can be scheduled through cron or Windows Task Scheduler, enabling unattended recording of recurring events; advanced users can feed it a list of upcoming stream IDs and walk away confident that the software will reconnect after network hiccups and split output into time-stamped segments if disk space runs low. Lightweight and portable, ytarchive has quietly become a staple in the open-source video-preservation community, complementing rather than competing with conventional YouTube downloaders that only handle finished uploads. Kethsar’s single-product catalogue is available free of charge on get.nero.com, where downloads are sourced from trusted Windows package managers such as winget, always deliver the latest upstream build, and can be queued alongside other applications for unattended batch installation.