OpenKJ vs Vocaluxe

OpenKJ is open-source karaoke hosting software for karaoke DJs, built and tested for Linux, macOS, and Windows. It integrates with OpenKJ Songbook, which supports web-based song search and submissions. Singers can use Songbook apps for iOS and Android to browse or search a songbook, submit songs with requested key changes, and save favorites. The web submission site can also serve as a venue kiosk, and sign-up requests are sent directly to the host computer. Songbook can optionally display download-vendor catalogs; the project says these are updated daily. OpenKJ SongShop supports purchasing and downloading karaoke files on the fly, with PartyTyme listed as the only available vendor. OpenKJ Tools provides utilities for ReplayGain adjustment, archive handling, zip compatibility, and filename capitalization. Those tools are marked experimental, and the project recommends backing up the library before using them. OpenKJ is free; Songbook starts at $9.99 per month and has a one-month free trial.

Vocaluxe is a free, open source singing game for up to six players. Participants sing into microphones and receive scores based on pitch and rhythm, using songs in the UltraStar format. Players can create tracks, sing duets with different notes, or use medley mode for shortened song selections. Party options include challenge mode and Tic-Tac-Toe. Profiles can contain pictures and appear in high-score lists, with webcams available for taking profile photos. Lyrics support multi-screen display. Controls include keyboard, mouse, gamepads, WiiMotes, and smartphones. The Free plan costs nothing and includes up to six players; there is no free trial. Portable versions are provided for releases. Vocaluxe is listed for Linux, web, and Windows, but Linux users must compile it themselves and the maker says Linux has no official support. Help is available through the community Discord and GitHub wiki. The project wiki says there are currently no active developers.