DJ BOX
A professional two-deck DJ console in one page. Load your own tracks, or paste a YouTube link — file decks find their BPM and key — then mix: crossfader, 3-band EQ, filters, tempo, SYNC, cues and 4-beat loops. Your files never leave your device.
DECK A
tap or drop — MP3, WAV, FLAC, M4A
MASTER LEVEL
CROSSFADER
Equal-power crossfade. SYNC on a deck matches its tempo to the other deck. LOOP 4 holds a 4-beat loop at the detected BPM.
DECK B
tap or drop — MP3, WAV, FLAC, M4A
Built for practice, parties and live sets from a phone or laptop. Tempo works like vinyl: speed and pitch move together (±8%). For a PA or recording, route your device output as usual — everything you hear is mixed live in the browser.
Free online DJ mixer — two decks, sync, EQ and crossfader
DJ Box is a full DJ console in your browser. Load your own tracks onto two decks; each deck reads its BPM and musical key automatically. Mix with the equal-power crossfader, shape each deck with a 3-band EQ and a sweep filter, ride the tempo faders like vinyl (pitch follows tempo), hit SYNC to match beats, set cue points and hold 4-beat loops. No install, no sign-up — and your files never leave your device.
How do I mix two songs online for free?
Load one song on deck A and one on deck B, press play on both, and move the crossfader to blend. Use SYNC to lock the tempos, the EQ to swap the basslines (turn A’s LOW down as B’s comes up), and the filter for smooth transitions.
Does the tempo change the pitch?
Yes — like a real turntable, the tempo fader (±8%) changes speed and pitch together. That is how vinyl DJs mix, and it keeps the maths of SYNC honest.
Can I DJ with YouTube tracks?
Yes — switch a deck to YOUTUBE mode and paste a link. Play, cue, volume and the crossfader work with YouTube decks. EQ, filter, tempo, SYNC and loops need a file deck, because YouTube never shares its raw audio with the page.
Can I see the waveform and beatgrid?
Yes – every file deck draws its waveform with the beatgrid on top (a stronger line every 4 beats at the detected BPM), your cue point marked in orange and a live playhead. Click or tap anywhere on the waveform to jump straight to that point. YouTube decks cannot show a waveform, because YouTube never shares its raw audio.
Are my tracks uploaded?
Never. DJ Box runs 100% in your browser with the Web Audio API. Your music stays on your device.
More free tools: All JHALLU tools · Beat Maker · Master Check · Stem Lab