Beltr — Karaoke From the Songs You Own · $19.99 One-Time

Karaoke. No subscription.
No catalog. No account.

Your music folder, your machine, $19.99 once. Songs you already own become karaoke on your TV.

$19.99

5 songs free  ·  no card  ·  works offline  ·  Mac, Windows, Linux

14-day refund  ·  built by one developer

Real screen recording of the app. No generated footage.

Your music folder is the catalog Runs on your machine. Nothing uploads. $19.99 once. No subscription, ever.

The magic

Press play. Slide to kill the vocals.

This is exactly what Beltr does to any song you own — on your own machine, in a minute or two, with nothing uploaded.

OriginalVocals removed

  “Beltr” — original theme song

Now do it to your songs, free

5 songs free · no card · Mac, Windows & Linux · big installer — the whole engine ships inside, nothing uploads

Almost no work

The hard part is choosing the song.

No converting. No hunting down karaoke files. No typing out lyrics. Point Beltr at the music you already own and it handles the rest by itself — here's the actual app doing it.

01 · Setup

It goes looking for your music.

Setup asks one real question: where's your music? Beltr checks the usual places — your Music folder, an Apple Music library, a folder of karaoke discs — and shows you what it found. One tap connects it.

Nothing gets copied, converted, or moved. Your files stay exactly where they are.

Beltr's Add music dialog: “Connect a folder and every song in it shows up in your library, ready to prepare”, with a one-tap Connect button next to a detected Apple Music folder

02 · Your library

Your collection is the catalog.

Every song in that folder is now sitting in Beltr, searchable by artist, album and genre. There's no separate karaoke catalog to buy from and nothing to prepare in advance.

When someone asks for a song, you find it and hit one button. That's the whole interaction.

The Beltr library browsed by artist: a wall of artist tiles from a connected music folder, each with a song count, alongside Songs, Albums, Genres and Recently Added in the sidebar

03 · The work

Then it does the work while you don't watch.

Beltr strips the vocals, pulls the synced lyrics, maps the pitch and reads the key — on your own machine, one song at a time, entirely on its own. You get named stages instead of a spinner.

And it hands the song over early: the moment it's singable it says so, and finishes the polish in the background.

Beltr preparing a batch of songs by itself: a Working on now list with Separating Vocals progress, songs queued behind it, and one already marked playable while it finishes

04 · Showtime

The room sets itself up.

Press Play and Beltr opens the big screen, starts a room and puts a code and QR on the TV. Phones join by scanning it — no app to install, no pairing, no accounts.

And you don't wait for any of this the first time: Beltr arrives with a song already prepared, so you can sing before you've imported a thing.

A room watching Beltr karaoke lyrics glow on the big screen over a concert backdrop
Try it on 5 of your own songs, free

No card · no signup · Mac, Windows & Linux

The whole collection

Every karaoke file ever made.
And every song that isn’t one yet.

CDG and MP3+G discs, .kar and .mid files and Thai NCN songs play as-is — lyrics and timing read straight from the file, legacy encodings and CJK fonts included. Everything else you own goes through vocal separation on your own machine and comes out a karaoke track. And it exports back out as MP3+G, CDG or .kar for the karaoke machine already in the basement.

CDG MP3+G .kar .mid NCN MP3 FLAC MP4
Live scoring and pitch bar Key change, six semitones either way Music-video backgrounds Practice mode with A-B loop Party games between songs Every phone is a mic and remote Reveal Reel — your best take, saved

See all of it in real screenshots

No subscription

There is no catalog. That’s the point.

Subscription karaoke rents you a catalog: $80–120 a year, and you can only sing what they licensed this month. Beltr has no catalog to rent — your music folder is the catalog, it runs entirely on your own computer, and nobody can remove your songs. That's also why it can cost $19.99 once: no cloud servers to rent, no per-song licensing bill to pass on. One developer, sold once, yours to keep.

BeltrSubscriptionsFree lyric videos
Monthly cost$0 forever$7–10/moFree, with ads
Your own musicAny MP3 you ownTheir catalogHit or miss
Works with karaoke machinesYes — MP3+G in & outNoNo
Works offlineYesNoNo
UpdatesFrequent, free foreverWhile you pay
Phone remotesAny phoneSomeNo
Live scoringYesSomeNo
Price$19.99 once$80–120/yrFree (limited)

“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 being able to send hype to the screen during a performance — that's been on my list for a long time. I can see value in this!”

r/karaoke
The founder of Beltr, pointing at his Beltr shirt

Why I built Beltr

I got tired of paying rent on my own karaoke nights.

Hi — I'm the one person behind Beltr, and I'm genuinely bad at karaoke. I do it constantly anyway. Somewhere along the way everything became a subscription — even singing in your own living room. So I built Beltr alone, at night (CasaVargas LLC): karaoke the whole family can pile into, on the TV you already own, with the songs you already have. It runs entirely on your own computer, so there are no servers for me to rent and no reason to bill you every month. Yes, the vocal removal is AI — it runs on your computer, not mine, and your files never leave your machine. And if something breaks, you're not emailing a faceless company — you're emailing me, at support@beltr.app.

— Jon

Beltr gets built in the open.

New features get hashed out in the Discord first. Come tell me what's missing.

Join the Discord

Get Beltr

Download free. Singing in two minutes.

Five songs free to start. Pay once when you're hooked. $19.99, forever.

Actively developed · see what’s new →

Installers are 700 MB–1 GB depending on platform: the entire AI engine ships inside. Nothing uploads, nothing runs in the cloud.

Windows without the Store? Download the .exe installer · SmartScreen may ask once — here’s what to expect

Store-reviewed on every platform: the desktop app is on the Microsoft Store, and the free remote and TV apps are on the App Store and Google Play.

$19.99 — one-time, forever

5 free songs included. No subscription, ever. A year of subscription karaoke runs $80–120. Beltr is $19.99 once.

Two ways you can't lose: try it free on 5 of your own songs — no card, no time limit. Buy it and change your mind? Full refund within 14 days — just email support@beltr.app. No forms, no questions.

Secure checkout via Lemon Squeezy — instant license key by email. One key covers 2 devices.

Built by one person — CasaVargas LLC. No servers, no investors, no subscription — that's why it's a one-time price.

Free companions

The desktop app is the only purchase.

Phones join with a QR scan — nothing to install. If you want more, the TV apps and the phone remote-and-mic app are free.

FAQ

Quick answers.

Will it work with my music?

Any MP3, FLAC, or WAV you already own. Beltr also reads karaoke files you already have — CDG and MP3+G discs, .kar and .mid files, and Thai NCN songs — taking their lyrics and timing straight from the file. Nothing streams, and nothing is uploaded.

How does Beltr make a karaoke track?

Add any MP3, FLAC, or WAV from your library and Beltr starts on it automatically: its on-device AI separates the vocals from the instrumental — a minute or two for a typical song, quicker on a recent Apple Silicon Mac and longer on an older CPU-only PC — then syncs the lyrics to the music. Beltr also opens with a song already prepared, so you can sing before you import anything.

Is Beltr a subscription?

No. Beltr is a one-time purchase of $19.99 with a free 5-song trial. No subscription, no accounts, and lifetime updates are included.

Is it safe to install, and can I get a refund?

On Windows you can install from the Microsoft Store, which skips the SmartScreen warning entirely — the direct download is the same app. Either way there's a 14-day refund, no questions asked.

A tool we like

StemDeck pulls a song into up to six parts — vocals, drums, bass, guitar, piano — free, open source, and on your own machine. It is the one to reach for when you want the pieces of a song rather than a karaoke night.

Beltr is on StemDeck's We Recommend list, and they take no money from anyone on it. It costs nothing to use, so a star on the repository is the only thanks it can take.