Drop any MP3 you own. AI strips the vocals in 30 seconds. Lyrics appear on your TV, phones become wireless remotes. Download free — start singing in 2 minutes.
5 songs included free. Mac, Windows & Linux.
Limited Time $29.99 $19.99 — one-time, forever
This is what Beltr does to any song you own.
Demo showing AI-generated karaoke lyrics synced on a TV screen
Lyrics sync word-by-word on any screenDemo showing a phone used as a wireless karaoke remote control
“Just paid for another month of Karafun… I'm VERY interested in your app. Keep going!”
— r/karaoke“Paid for the app this morning. Love the ability to send hype to the screen during a performance — that's been on my personal list for a long time. I can see value in this!”
— r/karaoke“Can't wait to try this out 🤘”
— r/karaoke| Beltr | Karaoke Subscriptions | YouTube Karaoke | |
|---|---|---|---|
| Monthly cost | $0 forever | $7–13/mo | Free but ads |
| Your own music | Any MP3 you own | Their catalog only | Whatever's uploaded |
| Works offline | Yes | No | No |
| Phone remotes | Yes, any phone | Some | No |
| Live scoring | Yes | Some | No |
| Price | $19.99 once | $80–160/year | Free (limited) |
Karafun costs $13/month. Beltr pays for itself in 6 weeks — then it's free forever.
Any MP3, FLAC, or WAV you own — vocals stripped in 30 seconds. Works completely offline, no upload required.
Guests scan a QR code on the TV. No app install, no account. Queue songs, browse the library, vote on what plays next.
Word-by-word synced lyrics on the TV. Real-time pitch scoring. Key transpose to match any voice. If lyrics aren't online, AI generates them locally.
Download. Drop your music. Start singing.
Launch Price $29.99 $19.99 — one-time, forever
5 free songs included. Pay once, own it forever.
Get Beltr — $19.99Runs on Mac, Windows & Linux. 8 GB RAM minimum. ~2 GB disk for the AI model.
SmartScreen may show "Windows protected your PC". Click "More info" then "Run anyway".
Microsoft Store version coming soon — no SmartScreen, one-click install.
AppImage requires libfuse2. On Ubuntu 22.04+: sudo apt install libfuse2. Or use the .tar.gz download.
The latest improvements to Beltr
Your license includes every future update. Here's what we're working on.
Dedicated iOS and Android apps for the remote. Faster, smoother, and built for the best karaoke experience.
Split lyrics across two screens for duets. Each singer gets their own lines highlighted in real time.
Track your best scores, most-played songs, and party highlights. Brag-worthy stats after every session.