Karaoke Mugen

Karaoke Mugen is open-source software for running karaoke sessions, with an operator managing the queue and guests joining in with requests. It suits hosts who want structure without giving up audience participation. Its strongest case is a flexible, free event tool; its main trade-off is the setup and operating responsibility it puts on the host.

Overview

The software is designed for both private karaoke with friends and public events. Operators manage the playlist while guests can suggest songs from their own devices, leaving the host in control of what actually plays. That balance makes it useful for groups that want input from the room without turning song selection into an unmanaged queue.

Once installed, configured, and up to date, Karaoke Mugen can run offline. Guests must still be on the same Wi-Fi network to participate, so it fits a prepared local event rather than a remote gathering. Some features are optional online services, including update checks, repository song downloads, online accounts, and shortened session URLs.

Key features

Queue and audience controls

Operators can add, remove, reorder, shuffle, import, and export songs, with smart shuffle among the playlist tools. Guests submit requests, and the host selects from them; voting can also let the audience choose what plays next. Quotas for songs or singing time, plus blacklists and whitelists, help keep a busy session manageable, but they require the operator to set the rules.

Automixes, sessions, and quiz mode give hosts additional ways to shape an event. User profiles and favorites can be saved online, and users can connect AniList, Kitsu, or MyAnimeList to get songs from anime they have watched. These options are particularly relevant to anime karaoke groups; they are not necessary for a host who only needs a basic playlist.

Playback and compatibility

The player offers playback controls, automatic volume adjustment, pitch and speed changes, and a synchronized second video player. It accepts video formats supported by mpv and uses ASS subtitles; imports include Ultrastar, Karafun, and KBP. Dual-screen lyrics display supports setups where performers and the audience need separate views. The WebSockets API gives developers a route to build additional interfaces or clients.

Karaoke Mugen can show the currently sung song on a user's Discord profile. Usage statistics are sent to Karaoke Mugen Server only with user consent, a useful privacy control for operators who prefer not to share them.

Pricing

Karaoke Mugen is free: the Karaoke Mugen plan costs free. It is MIT-licensed open-source software, and no paid plan is offered. That makes the full host-and-guest feature set a straightforward choice for organizers who do not want a subscription; there is no paid tier to turn to for a different service level.

Platforms

The maker provides Windows, macOS, and Linux builds, and supports web access for guest participation. Linux binaries require GLIBC 2.31 or higher, which may rule out older systems. The Windows portable version cannot update automatically; users must replace its files from a new ZIP archive, a maintenance drawback for anyone choosing the portable build.

Who it's for

Karaoke Mugen is best for a host who wants to run private parties or public events from a central playlist while still taking requests from the room. Its quotas, filters, voting, and session modes suit organizers who need more control than a free-for-all queue. It is less compelling for someone who wants a turnkey consumer karaoke experience rather than software to configure and operate, or for events whose guests cannot share a Wi-Fi network.

Pros and cons

• Pro: Guests can request songs and vote while the operator retains control of the queue, balancing participation with event management.
• Pro: After setup and updates, offline playback supports local events without a continuing internet connection.
• Pro: Playlist tools, quotas, filters, and multiple event modes give hosts practical ways to manage different group sizes and formats.
• Pro: Free, MIT-licensed software avoids subscription costs and allows additional interfaces through a WebSockets API.
• Con: Guests need to be on the same Wi-Fi network, limiting participation to a shared local setting.
• Con: The operator must configure the software and manage the event; the Windows portable build also needs manual file replacement to update.
• Con: Linux users need GLIBC 2.31 or newer, excluding systems below that requirement.

Alternatives

Compare karaoke software if you want to weigh more options. KaraFun is a freemium option across Android, iOS, macOS, web, and Windows, with a free plan and a £7.99-per-month Premium plan; choose it if you prefer that plan structure and platform range. Karaoke 5 has a free edition whose limits include no synchronization, YouTube downloads, mobile management, or music quiz, so it may fit a simpler desktop setup. OpenKJ is another free, open-source karaoke hosting option, with a free trial and a paid songbook plan starting at $9.99 per month; consider it if that hosting-and-songbook model suits your event better. Nightingale is a free, open-source karaoke app and a reasonable alternative to compare.

Kanto Karaoke Player&Recorder has a free version for Windows with a five-song playlist cap, one-minute recording and MIDI-to-MP3 limits, and no professional use; its Mac free version is another option to compare. Performous is free software with Windows, macOS, and Linux downloads, making it another cross-platform choice to consider. Smule is freemium on Android, iOS, and web, with free access to existing duets and a $19.99-per-month VIP All Access Pass; choose it if joining duets is the priority. TKaraoke is a freemium alternative with a free trial.

Verdict

Choose Karaoke Mugen if you want a free, open-source way to run a host-led karaoke event with requests, voting, and playlist controls, especially when offline operation matters after preparation. Look elsewhere if you need remote guest participation, a more turnkey setup, or a Windows portable build that updates automatically.