For Professional Karaoke DJs

Built for Professional Karaoke DJs Who Take Their Craft Seriously

You run shows 3–7 nights a week. You manage hundreds of singers, thousands of songs, and an audience that expects a seamless experience. NexaDeck gives you Rust-powered audio and professional show control. NexaLive connects your audience with zero-friction digital requests. Together, they replace every piece of legacy karaoke software you've been tolerating — and add capabilities no competitor can match.

Join the BetaExplore Products

Invite-only beta · Mac, Windows & Linux

The KJ Struggle Is Real

Every Working KJ Knows These Problems

Professional karaoke DJs have been underserved by software for over two decades. The tools that were built for Windows XP are still the industry standard. Paper slips still litter DJ booths. Key changes still sound robotic. And the DJ is still chained to a laptop in the corner. It doesn't have to be this way.

×
Legacy software was designed for Windows XP

Most professional karaoke software was built in the early 2000s and has seen minimal innovation since. The interfaces look dated, the codebases are brittle, and crashes during live shows are an accepted reality. PCDJ Karaoki, CompuHost, and Karma all share this legacy — functional, but frozen in time.

NexaDeck is built from the ground up with modern technology

A Rust-powered audio engine, modern React-based interface, and architecture designed for reliability. NexaDeck was built in the 2020s for the 2020s — not patched from a codebase that predates the iPhone.

×
Paper slips create chaos and frustration

Patrons write illegibly on scraps of paper. Slips get lost, duplicated, or misread. The DJ can't verify if a song is in their library until they manually search. Singers have no idea where they are in the queue or how long they'll wait.

NexaLive replaces paper with zero-friction digital requests

Audience members scan a QR code, search the full song catalog, and submit requests in 30 seconds — no app download, no account creation. The DJ sees requests with automatic library matching. Singers track their queue position in real time.

×
Windows-only locks out Mac and Linux DJs

PCDJ Karaoki is Windows-only. CompuHost is Windows-only. Karma is Windows-only. If you're a DJ who prefers macOS — or a venue that standardized on a different platform — your options are severely limited. KaraFun offers Mac support but forces a streaming-only model.

NexaDeck runs on Mac, Windows, and Linux from day one

Built with cross-platform technology, NexaDeck delivers the same professional experience regardless of your operating system. Your choice of hardware never limits your choice of karaoke software.

×
No mobile control — you're tethered to the laptop

When a patron has a question, when you need to adjust the rotation from the stage, when you want to mingle with the crowd — you can't. Legacy karaoke software has no concept of remote control. The DJ booth is a prison.

NexaLive Mobile DJ Panel works from any phone, anywhere

Play, pause, skip, manage rotation, handle requests, and control your entire show from your phone. The Mobile DJ Panel connects through the cloud — it works from any network, anywhere in the venue, even from a different building.

×
Key change sounds robotic and unnatural

Most legacy karaoke software offers basic pitch shifting that introduces audible artifacts — metallic tones, chipmunk effects, and unnatural warbling. Professional singers notice immediately, and it degrades the performance.

Rust-powered audio with professional DSP processing

NexaDeck uses SoundTouch DSP with independent pitch shift (plus or minus 12 semitones) and tempo control (0.5x to 2.0x). Multiple DSP modes including Rubberband for natural pitch preservation and Turntable mode for vinyl-style effects. Studio-grade audio quality that singers and audiences can hear.

×
No way to build your brand or promote shows

Legacy software treats the DJ as invisible. There's no web presence, no show schedule, no way for new patrons to discover you online. Your marketing is limited to the venue's Facebook page and word of mouth.

NexaLive gives every DJ a branded discovery page

Every DJ gets a branded hub page with live show status, upcoming schedule, browsable songbook, and QR code access. Share your page on social media, print it on business cards, and let new audiences find your shows.

See It In Action

The Professional KJ's Toolkit

Every screen, every view, every tool — designed by working DJs for working DJs. Here's what your show looks like with NexaDeck + NexaLive.

DJ Performance View

DJ Performance View

Your command center during a live show. See the current track, upcoming rotation, key and tempo controls, audience display preview, and incoming requests — all in one view designed for the pressure of a live performance.

Library Manager

Library Manager

Search across your entire CDG and MP4 collection with instant results. Smart filters by artist, genre, decade, and version. MusicBrainz metadata enrichment and BLAKE3 duplicate detection keep your library clean and organized.

Song Request Kiosk

Song Request Kiosk

What your audience sees when they scan the QR code. A fast, mobile-friendly song browser with full-text search, genre filtering, and one-tap requests. No app to download, no account to create — just music.

Mobile DJ Panel

Mobile DJ Panel

Control NexaDeck from your phone — anywhere in the venue. Play, pause, skip, adjust key and tempo, manage the singer rotation, and handle incoming requests. Works through the cloud, so it connects from any network.

Watch It Work

Watch a Professional KJ Run a Show with NexaDeck

See how NexaDeck + NexaLive work together during a live karaoke show — from setup to the first song request to managing a packed rotation at peak hour.

Watch a Professional KJ Run a Show with NexaDeck
A Day in the Life

How a Professional KJ Uses NexaDeck + NexaLive at a Typical Show

Follow a working KJ through a typical weeknight show to see how NexaDeck and NexaLive transform the entire experience — from load-in to last call.

6:30 PM — Load-In

Setup Takes Five Minutes, Not Thirty

You arrive at the venue and plug in your laptop. NexaDeck launches and your entire library is ready — no re-scanning, no waiting for indexing. You connect to the venue's projector for the audience display and pull up the DJ Performance View on your laptop screen. Your buffer music playlist starts automatically. While speakers warm up, you open NexaLive on your phone and confirm your show is live — the QR code on the venue's table cards is already pointing to tonight's show page.

7:00 PM — Doors Open

Requests Start Flowing Before You Touch the Mic

The first patrons walk in, scan the QR code on their table, and start browsing your song library. Within minutes, your NexaDeck request queue has three incoming songs — each automatically matched against your local library with confidence scores. You accept them with one tap from your phone while chatting with the bartender. No paper slips. No walking back to the booth. No shouting across the bar.

7:30 PM — First Singer

Professional Audio From the First Note

Your first singer takes the mic. She's requested a song that's a little high for her range. You drop the key by two semitones from your phone using the Mobile DJ Panel — the pitch shift is seamless, natural, powered by SoundTouch DSP. CDG lyrics scroll on the audience display with your custom branding. The audience screen shows the upcoming rotation, so the next three singers know they're on deck.

9:00 PM — Peak Hour

Managing a Full Rotation Without Breaking a Sweat

Twenty-five singers in the rotation. Requests are flowing in every few minutes. You're on the dance floor, encouraging a nervous first-timer, while managing the queue from your phone. NexaDeck's smart rotation handles fair ordering — regulars don't cut in line, new singers get balanced placement. A singer marks herself "away" from her phone when she steps out for a cigarette. The rotation automatically adjusts. When she comes back, she's slotted back in without you lifting a finger.

10:30 PM — Late Night

The Crowd Is Engaged Because the Tech Works

Patrons check their queue position from their phones. They browse upcoming songs and discover tracks they didn't know you had. A group at the back table submits five requests in a row — each one confirmed and queued in seconds. Someone tweets your NexaLive show page and a few new faces walk in. This is what modern karaoke looks like: the audience is part of the show, not waiting on paper slips.

1:00 AM — Last Call

Clean Wrap and Tomorrow's Show Is Already Set

You announce last song. NexaDeck shows the remaining rotation — three singers left, and each one knows their position. After the final performance, buffer music fades back in automatically. You close your laptop. NexaLive marks your show as ended. Your hub page already shows your next show's date and venue. Load-out takes five minutes. Tomorrow's show at a different venue will be just as smooth — same software, same library, same workflow.

Everything You Need

Feature Summary for Professional KJs

NexaDeck + NexaLive together deliver the most complete professional karaoke toolkit available. Here's everything included for working DJs.

NexaDeck — Show Control

  • Rust-powered audio engine with sub-millisecond latency
  • Independent pitch shift (±12 semitones) and tempo control (0.5x–2.0x)
  • Multiple DSP modes: SoundTouch, Rubberband, Turntable
  • CDG+MP3 lyrics, MP4 video karaoke, and audio-only playback
  • Smart singer rotation with drag-and-drop queue management
  • Away status, duplicate prevention, configurable insertion strategies
  • Multi-display output: DJ view + audience screen
  • CDG lyrics display with scrolling singer marquee and custom branding
  • Library search with instant results across 10,000+ songs
  • MusicBrainz metadata enrichment and BLAKE3 duplicate detection
  • Buffer music system with automatic background playback
  • Cross-platform: Mac, Windows, and Linux
  • Offline-first: shows run without internet connectivity

NexaLive — Audience Engagement

  • QR code song requests — scan, search, tap, done in 30 seconds
  • Full-text search and genre filtering across your entire song library
  • No app download required — works in any mobile browser
  • Real-time queue position and wait time tracking for singers
  • Automatic library matching with confidence scoring
  • Mobile DJ Panel — control your show from any phone, any network
  • Play, pause, skip, key change, and rotation management from mobile
  • Venue kiosk mode with PIN-protected exit and auto-reset
  • Branded DJ hub page with live status and upcoming schedule
  • Show discovery — let new audiences find your karaoke nights
  • WebSocket-powered real-time updates — no page refreshing
  • Cloud-based show management dashboard
  • Bulk catalog import in minutes

Why Professional KJs Are Switching to NexaDeck + NexaLive

The professional karaoke DJ industry has been underserved by technology for far too long. While every other entertainment vertical has modernized — live sound engineers use digital mixers with iPad control, mobile DJs use intelligent music analysis and cloud-synced libraries, wedding planners use sophisticated CRM and planning tools — karaoke DJs are still running software that was designed when Windows XP was cutting-edge.

This isn't a criticism of the DJs themselves. Working KJs are some of the hardest-working entertainers in the nightlife industry. A typical professional KJ manages a rotation of 20–40 singers per night, curates a library of thousands of songs, handles the technical demands of professional audio, and serves as both entertainer and crowd manager. They deserve tools that match their professionalism.

The Audience Has Changed — Your Software Should Too

Today's karaoke audiences grew up with smartphones. They order food on apps, pay tabs with Apple Pay, and share experiences on social media in real time. When they walk into a karaoke bar and are handed a paper songbook and a pencil, the experience feels outdated before the first song plays. NexaLive meets your audience where they already are — on their phones. A QR code scan gives them instant access to your full song catalog, one-tap requests, and real-time queue tracking. No app to download, no account to create. The friction is gone.

Audio Quality Is Not Optional for Professionals

When a singer steps up to the mic, the audio quality reflects directly on you. Key changes that sound robotic, tempo adjustments that introduce artifacts, or playback that clips and distorts — these are not acceptable in a professional context. NexaDeck's Rust-powered audio engine uses SoundTouch DSP to deliver pitch shifting and tempo control that sounds natural and musical. This isn't a gimmick feature added as an afterthought — it's the core of the engine, built with the same technology used in professional studio tools.

Your Library Is Your Investment — Protect It

Professional KJs have invested thousands of dollars — often tens of thousands — building CDG and MP4 karaoke collections over years of their career. Streaming-only platforms like KaraFun ask you to abandon that investment entirely. NexaDeck respects your library. Import your existing files, search them instantly, enrich them with MusicBrainz metadata, and detect duplicates with BLAKE3 hashing. Your library is your competitive advantage — NexaDeck makes it more valuable, not less.

Freedom to Move, Freedom to Perform

The best KJs are entertainers, not laptop operators. They work the room, encourage singers, build energy, and create moments. NexaLive's Mobile DJ Panel liberates you from the booth. Control your entire show from your phone — play, pause, skip, adjust pitch and tempo, manage the rotation, and handle incoming requests. The cloud relay means it works from any network, anywhere in the venue, even from outside. Your show keeps running whether you're at the booth or on the dance floor.

Ready to Upgrade Your Show?

Join professional KJs who are replacing legacy karaoke software with the only integrated desktop + cloud platform. Request your invite to the beta today.

Join the BetaExplore Products