Blitzloop

What Blitzloop is

Blitzloop is open-source karaoke software intended to recreate a Japanese karaoke experience. It displays video and lyrics on a screen, while users control playback remotely through a browser. Users need to prepare songs for the software; a separate public repository contains songs whose authors have permitted their use. Those repository songs may be used with Blitzloop and for performances only when neither the performance nor an event advertising it charges a fee. The project supports track creation and provides a single-screen lyrics display. Blitzloop is free, with GPL-2.0 and GPL-3.0 listed for the software; the song repository has different licensing terms. The project describes itself as a work in progress, and installation and use require manual effort. Its listed requirements include Python 3, JACK, freetype, OpenGL, and mpv built with librubberband support. Linux installation instructions cover Arch Linux, Debian, and Gentoo. macOS installation calls for Xcode and Homebrew. After installation, users open the browser interface at port 10111. The guide also documents running without JACK using the --no-audioengine and --mpv-ao=coreaudio options.