Now in beta — free to play

Sing it
or lose it.

The party singing game where AI listens to every word. Pick a song, grab the mic, and prove you actually know the lyrics.

Start Playing See how it works
+1 ✓
-1
+1 ✓
Blinding Lights 2:14 / 3:20
Sarah's turn
✓ I been on my own for long enough
Maybe you can show me how to love
Sarah
12
Mike
9
Lena
7

Four steps to
bragging rights

No downloads. No accounts. Just open the link, grab your friends, and sing.

01

Pick a song

Browse the library and choose a hit everyone knows. The instrumental loads — no vocals, just the beat.

02

Add players

2 to 4 players. Enter names, pick your colors. One mic, one device — pass it around like a party.

03

Sing your lines

Each player sings 2 lines, then rotates. The lyrics scroll on screen. The AI listens through the mic in real time.

04

Get scored

Gemini's native audio AI judges every line. Right words earn points. Wrong words lose them. No mercy.

Built for
game night

Everything you need for a proper singing showdown, nothing you don't.

AI-powered judging

Gemini 3.1 Flash Live processes your voice natively — no transcription delay, no lag. It hears what you sing and scores instantly.

Real-time scoring

See scores update live as each player sings. Green for nailed it, red for fumbled. The scoreboard never lies.

Growing song library

Pop, rock, hip-hop, ballads. From The Weeknd to Queen. New songs added regularly. Request your favorites.

2-4 players

Perfect for couples night, friend groups, or family game night. Everyone takes turns, everyone gets judged.

Browser-based

No app to install. Open the link on any laptop, tablet, or phone with Chrome. Just allow mic access and go.

Stats & streaks

Track your longest correct streak, worst fumbles, and all-time win record. The receipts are always there.

Simple rules,
high stakes

The scoring is transparent. No mystery. You either know the words or you don't.

+1

Correct line

Sing the line right and earn a point. Minor pronunciation differences are forgiven.

-1

Wrong word

Get a word wrong and lose a point. Every word counts. No mumbling your way through.

-2

Missed line

Go silent or sing the completely wrong lyrics? That's minus two. The AI knows.

Stop pretending
you know the words.

Prove it. Open JustSing, grab your friends, and let the AI be the judge.