The DAW built for DJ sets.
Bring in your library and your Ableton or FL Studio sessions, build the set on a timeline, play it on two decks or your controller, and take it to the booth on a USB that works on CDJs, Denon, and Serato. Then record what you played and edit it afterwards. You never have to open rekordbox again.
- 01Bring it in Library, rekordbox, Ableton & FL Studio
- 02Build the set Grids, edits, transitions, chops, stems
- 03Play it live Two decks, controllers, every XDJ FX
- 04Take it to the booth USB export, LINK, record the players
- 05Together Live collaboration, browser beta
BUILT BY A WORKING DJMACOS, WINDOWS & LINUXPREP · PLAY · RECORDWRITTEN IN RUST
THE STICK PLAYS ON
01 — BRING IT IN
Your music, and your studio sessions, already here.
Point QNTZ at your folders, your drives, or your rekordbox collection. Nothing is copied, and every track gets its BPM, key, grid and waveform.
01.1
From your DAW. To your decks.
That edit you've been working on? Bring it with you. QNTZ connects your studio sessions to your next set.
- Ableton .als (⌘⇧I / Ctrl+Shift+I): clips, warps, tempo automation, volume and EQ envelopes, and fades.
- DAWproject from Bitwig, Cubase, or Studio One: the same.
- FL Studio .flp: the playlist's audio clips, track names and colors, and tempo.
- Or drag audio files in. BPM and key are analyzed as they land.
- Sets export back out as DAWproject, so you can take them back to your DAW.
Also in the library
- Import Music
- From a folder, a drive, or your rekordbox collection. QNTZ remembers where each file is and reads its tags, so nothing is copied.
- Your rekordbox analysis, reused
- Tracks you already gridded in rekordbox mix on those grids, and its phrase analysis marks the drops, so a track you prepped doesn't start from zero.
- USB sticks in the sidebar
- Every stick you plug in shows its playlists. Rename them, add and remove tracks, and QNTZ writes them back in the player's own format.
- Smart Crates
- Save a filter as a crate: a BPM range, Camelot keys, an energy band, genres, or not used in any saved mix. It fills itself as tracks are analyzed.
- Up to four lists at once
- Split the library two, three or four ways. Any pane can show Maybes, Mixes well with (links, then key and tempo matches) or Deck history.
- Duplicates, cleaned up
- QNTZ picks the copy to keep, moves the cues, playlists and ratings onto it, and clears the rest. Files on disk are never deleted.
- Analysis in the background
- BPM, key and waveforms fill in a few files at a time while you work, and nothing is analyzed twice.
- Sample folders skipped
- When an import finds folders that look like samples, loops or one-shots, it asks which to leave out.
- Drives that come and go
- Unplug the drive your music is on and its tracks keep their waveforms, grids and cues. They're marked Offline until it's back.
02 — BUILD THE SET
Build the set. Keep the spontaneity.
Plan the moments that matter. Leave room for everything else. A proper timeline for DJs, with all the details that make a set yours.
02.1
See the bigger picture.
Arrange tracks on a timeline. Fix beatgrids, shape the energy, and hear how it all fits before you reach the booth.
- Put the playhead on the real downbeat and press ⌘↓ / Ctrl+↓. Bar 1 moves there and the whole grid follows.
- Or right-click the clip → Edit Grid and drag the red downbeat line onto the kick.
- Every clip keeps its own grid, so fixing one track never moves another.
- The export writes your grid, so the players show the same grid you set.
02.2
A little edit. A whole new feeling.
Chop, layer, and turn your ideas into edits and mashups. Bounce them into playable tracks, then come back and change your mind.
- Select the clips and press ⌘G / Ctrl+G to bracket them into a named edit.
- ⌘J / Ctrl+J consolidates them into one rendered clip in place, at one fixed BPM.
- Choose what gets baked in: EQ moves, volume, and fades.
- Changed your mind? Unconsolidate from the edit's menu puts the original clips back. Tweak, then consolidate again.
- On export, every edit is bounced to its own file and goes on the USB as a track.
02.3
Transition FX
Echo, delay, and reverb outs rendered into the track. The tail sounds the same on the players as it does in QNTZ, so your mixes come out clean live.
- Highlight the end of a clip (a beat, half a bar, a bar), right-click, and pick Transition FX → Delay, Reverb, or Echo.
- The highlight sets the repeat time: highlight one beat and it repeats every beat.
- Pick a 2, 4, or 8 bar tail and it renders straight away.
- Delay repeats drop the low end, so the tail doesn't muddy the next track's bass.
- The clip and its tail become one rendered clip, so it exports and plays like any track.
02.4
Good tracks. Great transitions.
Set your cues, sculpt your EQ, and find the mix that clicks. Get the tricky parts right before the lights go down.
- H drops a hot cue, M a memory cue. 1–8 set pads A–H directly.
- ⇧H / Shift+H puts the same hot cue on every stacked track under the cursor, so a double or a chop starts from one pad.
- L drops a hot loop, ⇧L / Shift+L a memory loop, over the highlight (or 4 bars).
- Drag a loop's end tab to repeat it on the timeline and hear it before you play it.
- Hot cues, memory cues, and loops export to CDJ, Denon, and Serato as real cues and loops.
02.5
Riddim chops
Check how riddim chops sound, and whether they'll hold up on CDJs, before the tracks go in the playlist.
- Stack two to four tracks, highlight a range across them, and press ⇧C / Shift+C.
- You get a step grid, one row per deck. Click a step to open that deck alone; ⇧ / Shift-click adds a second.
- Or press Tap and play the pattern live on 1–4 while it plays.
- The checker tells you if every deck lands on its own bar 1 and how much stretch each one needs.
- Stack cue at start puts one hot cue on every deck, so the chop starts from a single pad.
Also on the timeline
- Stems
- Right-click a clip ▸ Stem ▸ Solo Acapella or Solo Instrumental. The track is separated on your computer, and the stem plays in the set and in bounces.
- Segments
- Build part of a set once, in a timeline of its own, then drop it into any set as one block. Edit it and every copy updates.
- Auto-mix and the assistant
- Select two clips and press X for a blend, from a sixteen-bar EQ blend down to a slam. The assistant on each transition offers smooth, bass swap, quick, cut and hold drop.
- Transition markers
- Yellow, green and red markers set where a track comes in, is fully in, and cuts out. T cycles them.
- Automation and FX lanes
- Volume, three-band EQ, the DJ filter, trim, and the decks' Color FX and Beat FX, as lanes under each track. Click to add points, drag to shape.
- Tempo lane
- Ramps and resets across the set. Exported tracks get cues telling you when to ride the pitch.
- Key shift and level matching
- Shift a clip by key, or let Match Key to Previous Track pick the smallest move. G sets a clip's gain to match the track before it.
- The set's energy, at a glance
- An arc over the minimap shows how hard the set drives, bar by bar. Export Set Stats makes a card of the energy, BPM ramp and key journey.
- A/B a decision
- ⌘⇧A / Ctrl+Shift+A keeps the set as it is. Try the other idea, then flip between the two until one wins.
03 — PLAY IT LIVE
Mix it live. Keep the mix.
Live mode puts two decks that work like a pair of CDJs next to your library. Mix on screen or on your controller, and record what you play. Record to Timeline turns that mix into a set you can edit.
- A new layout: KEY and BEAT JUMP in large type beside the waveforms, and a card per deck with the remaining time, the overview and a BPM box.
- Beat FX reads like the mixer's screen, with an ON that pulses on the beat. Sound Color FX are lit tiles. All 23 effects from the XDJs.
- Name your hot cues. Each deck card lists them, and a named cue's pad shows its name.
- A MASTER knob and meter on the mixer, like a DJM's. Recordings are taken before it.
- Half or Full waveforms (⌘⌥W / Ctrl+Alt+W), and sidebars you can drag to the width you want.
- SYNC locks the beat, the pads and loops work like a CDJ's, and XDJ and DDJ controllers map themselves when you plug them in. REC (⌘⌥R / Ctrl+Alt+R) records your mix.
HOW TO OPEN IT
Click Live in the Timeline / Live switch by the QNTZ wordmark, or press Tab (also ⌘⇧L / Ctrl+Shift+L). The same switch and keys take you back to the timeline.
The XDJ-RR and XDJ-AZ are tested on real hardware. The other controller maps come from AlphaTheta's published MIDI charts. What's new in 1.2.0 →
04 — TAKE IT TO THE BOOTH
Out to the players, and back again.
Put the set on a stick, or send your library to the players over the network. Then record what you played and get the night back as a set you can edit.
04.1
One USB. All your hard work.
Export for CDJs, Denon, or Serato. Your tracks, playlists, grids, and cues come along. No extra library software required.
- ⌘⇧U / Ctrl+Shift+U opens the export. Pick one or more formats per stick.
- CDJ & XDJ: CDJ-2000/3000, CDJ-3000X, XDJ-1000/RX, XDJ-AZ, OPUS-QUAD, OMNIS-DUO.
- Denon: Prime 4, SC6000, SC Live, and the other Engine OS players. Serato: a crate named after the set.
- The playlist in set order, with hot cues, memory cues, loops, and beatgrids.
- Edits are bounced in, tracks are copied player-safe, and the stick is checked for space first.
Also on the way out
- Record the playersNEW IN 1.2
- Press ● REC on the LINK strip, play your set on your XDJs or CDJs, and press STOP. QNTZ rebuilds it on the timeline: the tracks, tempo rides, loops, and your fader, EQ and FX moves.
- Broadcast Library to PlayersEXPERIMENTAL
- Players on your network browse and load your QNTZ library over LINK, the way they browse rekordbox. The XDJ-AZ joins over Wi-Fi or a network cable, the XDJ-RR over its USB cable.
- Export to rekordbox
- Write the set into rekordbox itself as a playlist, with fresh player-safe copies of every track, so your originals and their cues are untouched.
- Traktor too
- A stick can carry a Traktor collection and playlist next to the CDJ, Denon and Serato ones, with tags, key, beatgrid and hot cues.
- Back to your DAW
- Export the set as DAWproject for Bitwig, Cubase or Studio One, or render the whole set to one WAV.
05 — TOGETHER
Build a set with someone else in it.
Share a set's link, and whoever opens it is in the set with you. Edits land as they happen.
- Build a set together, live
- Everyone's playhead and pointer show in their own color. Follow decides whether a peer's play, pause and seek move your view too.
- QNTZ in the browserINVITE-ONLY BETA
- The timeline, decks, stems and analysis in a browser tab, with no install. Import from rekordbox and export to USB from there too.
- Built for speed
- QNTZ is written in Rust and drawn on the GPU. On macOS, Windows and Linux it's a real app, not a web page in a wrapper, so the timeline keeps up while you drag, zoom and scrub.
- A community around it
- Ask questions and share sets in the community forum or on Discord, where the person building QNTZ reads every message.
Zoom from the phrase to the kick.
Real analysis of a real build. The waveform keeps its color at every distance, all the way in to the signal itself. And the red beatgrid is yours: drag it to put the downbeat where it belongs, and it exports to rekordbox exactly as you set it.
A few good questions.
All questions →Will my CDJs actually read the stick?
Yes. QNTZ writes the database the player reads itself: the Pioneer format for CDJ and XDJ, Engine DJ for Denon, crates for Serato. Hot cues, loops, playlists, and beatgrids come with it.
Do I have to give up my DJ library software?
No. QNTZ is the prep step in front of it. Export a stick straight from QNTZ, or export into the library you already keep and carry on as normal.
Is this just a mixtape bouncer?
No. Your set stays an editable timeline of separate tracks with real cues, so you can reorder it an hour before doors, and it reaches the players as tracks, not one long file.
Does my DAW work transfer?
Clips, warps, and tempo automation come across from .als and DAWproject, so Live, Bitwig, and Cubase sessions open here. FL Studio projects bring their playlist's audio clips and tempo. Sets export back to DAWproject as well.
Mac, Windows, or Linux?
All three. macOS needs one extra click past Gatekeeper on first launch, and the download walks you through it. A browser version is in invite-only beta.
I improvise. Why would I plan a set?
Plan the moves, not the night. Most DJs prep the drops, the doubles, and the chops and leave the order open. QNTZ is for the parts you want to land every time.
Less overthinking. More goosebumps.
Built by a DJ. For the moments only a DJ understands.
Free during alpha. Make something good.
Tell me what's missing.
QNTZ is built by one DJ, shaped by the people using it. Bug, rough edge, or a feature you need before your next gig: it goes straight to me.
There's a Send Feedback button in the app, too.