Desktop · 5 songs free · No card
Try 5 songs free on Mac, Windows, or Linux. Local Demucs v4 vocal separation runs on your machine — nothing leaves your computer. Buy once. No subscription.
Step 1
Pick the build for your operating system. Five songs free, no credit card.
Installers are 700 MB–1 GB depending on platform: the entire AI engine ships inside, so your music never leaves your machine.
For Apple Silicon Macs (M1 and newer). macOS 12 or newer. Signed and notarized by Apple.
Download for MacInstaller for Windows 10 and 11 desktops and laptops.
SmartScreen first launch help →Choose AppImage for portable use, or .deb for Debian/Ubuntu-based distros.
Linux first launch help →New · Free companion app
Beltr Remote pairs with the desktop app you're downloading: scan the room QR on your TV and your phone becomes the wireless microphone, with live scoring. Free on iPhone and Android.
Scan to get the app
First-launch notes
Some platforms show a first-launch prompt before an app builds OS reputation. Each is harmless and takes one click to clear.
Beltr for macOS is signed and notarized by Apple, so it opens normally the first time. No Gatekeeper prompt, no right-click workaround. Drag it to Applications and launch.
Windows SmartScreen may appear because Beltr is still building reputation as a new indie app. Click More info, then Run anyway. The Microsoft Store build skips this entirely.
Full SmartScreen help →On most distros you'll need to mark the AppImage as executable (chmod +x) before running it. The .deb package installs through your package manager on Debian and Ubuntu derivatives.
After download
Indie · desktop-first · yours
Beltr is desktop-first, local-first karaoke software. It's designed for people who want control over their own music library instead of another subscription catalog — a single developer, a focused app, and no streaming service in the middle.
In the box
A full karaoke stack — not just a vocal remover.
Local Demucs v4 splits each song into vocals and instrumental on your machine.
Export to MP3+G / CDG for compatible karaoke machines and players.
Drop in MP3+G or CDG zips and play them next to your AI-made tracks.
Lyrics on the big screen, scoring on the host machine — full party setup.
Guests scan a QR code and queue songs from their phones — no app, no signup.
Real-time scoring adds game-night energy and a per-singer leaderboard.
Beltr films your take and hands you a vertical clip. Made on your machine, shared only when you tap.
Big, readable lyrics that follow the song so anyone can sing along.
One purchase, two devices — covers your laptop and your party machine.
Pricing
Beltr includes a 5-song free trial. Unlock the full app with a one-time $19.99 purchase.
Summer sale
$19.99 one-time — no subscription, ever
One-time · no subscription · lifetime updates
FAQ
Yes. You can try Beltr with five songs before buying — no credit card required.
No. Beltr is a one-time purchase. No subscription, ever. Lifetime updates included.
Windows may show SmartScreen for new indie apps until they build enough reputation with Microsoft. Click More info then Run anyway. The Microsoft Store build avoids SmartScreen entirely.
Yes. The macOS build is signed and notarized by Apple, so it opens normally with no Gatekeeper warning. Drag it to Applications and launch.
Use AppImage for a portable option that runs on most distros without installation. Use .deb if you're on Debian, Ubuntu, or a derivative and prefer your package manager.
Yes. After the AI model downloads on first run, Beltr processes songs locally on your desktop. No internet connection required for separation or playback.
You can unlock Beltr through the secure LemonSqueezy checkout after trying the app. License works on up to 2 devices.
8 GB RAM minimum (16 GB recommended), modern multi-core CPU, ~2 GB free disk space for the AI model. Runs on macOS 12+, Windows 10/11, and Linux.
Each license key works on up to 2 devices — your laptop and your party machine, for example.
Ready when you are
Pick your OS. Five songs free, no credit card, no subscription.
Choose your OSMac, Windows, Linux · One-time $19.99 · 5 songs free, no card