Free · Open source · Runs on your computer

Put the phones down.
Sing together.

Stagelight turns any song into karaoke. Search for it, and a few minutes later the vocals are gone, the music video is playing and the lyrics light up word by word. Turn on arcade mode and it scores your singing. Your living room just became the stage.

Download for free Try the demo in your browser

Windows · macOS · Linux

Why we built this

We talk to screens more than to each other.

Scrolling through stories isn't the same as being in the same room. Somewhere between group chats and chatbots, we stopped doing the simple, slightly embarrassing things that actually bring people together.

Karaoke is one of the best of them. Nobody is good at it, everyone laughs, and by the third song even the quiet friend wants the microphone. It's hard to stare at your phone while your best friend is murdering a power ballad.

So yes, Stagelight uses AI. To get you off the screen and back to your people.

How it works

Any song. Three steps. One great night.

  1. 1

    Pick a song

    Search right inside the app, or paste a YouTube link. Queue a whole evening's worth while friends arrive.

  2. 2

    The AI does the work

    An AI model removes the lead vocal, the lyrics are found and synced to that exact music video. All on your computer.

  3. 3

    Grab the mic

    Fullscreen on the TV, music video behind you, every word lighting up right when you should sing it. Want to compete? Arcade mode scores every line.

Features

Everything a karaoke night needs.

🎵

Any song you can find

If it's on YouTube, it can be karaoke. No catalogue to wait for, no missing songs.

🎬

The real music video

The original video plays behind the lyrics, in sync with the instrumental. It's downloaded with the song, so no YouTube sign-in pop-ups.

✨

Word-by-word lyrics

Four highlight styles, a bouncing ball and countdowns before every verse. Don't know the song? Bring back a quiet guide vocal.

🏆

Arcade mode

Sing into the mic and score points for hitting the singer's notes: Perfect, Great or Good on every line, combos and a final rank from S to D.

🎉

Party queue

Line up songs and let them prepare in the background while the first one plays.

🔒

Private and free

No account, no upload, no subscription, no ads. Everything stays on your computer.

Fullscreen lyrics with the current line lighting up in gold
Fullscreen, made for the TV
Settings: text size, fonts, highlight styles and colours
Make it yours: size, fonts, colours, styles

Download

Get Stagelight. It's free.

Version 0.1 · About 150 MB, plus a one-time download of the AI engine on first launch.

Windows

Windows 10 and 11

Download .exe

macOS

Apple Silicon (M1 or newer)

Download .dmg

Intel Macs aren't supported: the AI library has no builds for them anymore.

Linux

Ubuntu, Fedora, Arch…

AppImage .deb
"Unknown publisher" warning on first launch?

Stagelight is a free project without a paid code-signing certificate, so your system asks before opening it the first time.

  • Windows: click More info → Run anyway.
  • macOS: open Stagelight once, then go to System Settings → Privacy & Security, scroll down and click Open Anyway. You only do this the first time.
  • Linux: make the AppImage executable: chmod +x Stagelight-*.AppImage.

Prefer to check the code first? It's all on GitHub, and you can run it from source with one command.

Good to know: vocal removal runs on your own computer. A song takes a few minutes on a laptop and much less with an NVIDIA graphics card. Queue songs early and they'll be ready when you are.

Made by one person, for everyone's living room.

Stagelight is free and always will be. If it made your night, you can buy me a coffee, or just give the project a star. Both help a lot.

☕ Buy me a coffee ⭐ Star on GitHub

FAQ

Questions

Is it really free?

Yes. Stagelight is open source under the MIT licence. No account, no subscription, no ads.

Does it upload my music anywhere?

No. The vocal removal and everything else runs on your own computer. Stagelight only talks to YouTube (to fetch the song) and to LRCLIB, a free lyrics database.

Why does the first time with a song take a few minutes?

That's the AI separating the voice from the music, right on your computer. It's done once per song; after that it opens instantly. With an NVIDIA graphics card it's much faster.

What if a song has no lyrics?

If the lyrics database doesn't have it, Stagelight listens to the separated vocal and writes the lyrics down itself. It's not perfect on singing, but it's usually close.

Do I need a microphone?

Only for arcade mode, and any mic works: the one in your laptop, a headset or a USB mic. It compares the notes you sing with the original singer's melody, in any octave, so deep and high voices score the same. Your voice is analysed live and never recorded or sent anywhere. Without arcade mode, just sing as loud as your neighbours allow.

Is this legal?

Stagelight is a tool for private, personal use at home. Songs, videos and lyrics belong to their owners, and downloading from YouTube may be against its terms where you live, so please use it responsibly and don't redistribute what it makes.