Online Audio Mixer
16-channel mixer & how-to course
Load your tracks (stems or recordings, one per channel), or try the demo song. Drop a file on any channel, or choose a microphone or audio interface input as its source to mix live.
Playing live? Get the lowest latency
- Use wired headphones or speakers. Bluetooth adds 100–300 ms that no software can remove.
- Use a USB audio interface if you have one, and pick its inputs as channel sources. Built-in laptop mics are fine for speech.
- Chrome or Edge give the lowest browser latency. On Windows, set your interface to 48 kHz in Sound settings and close other apps that use audio.
- Keep this tab in front and plugged in: browsers slow down background tabs and battery saving adds delay.
- The latency shown above is the full trip from input to output reported by your browser. Under about 15 ms feels instant to most performers; 15–30 ms is fine for speaking and most singing.
Use headphones with live inputs, or the speakers will feed back. Everything runs in your browser; your files and recordings are never uploaded.
About the Online Audio Mixer
No mixing desk? This one runs in your browser. Load up to 16 tracks (stems, backing tracks) or live inputs from microphones and audio interfaces, then shape each one like on a real desk: gain with a clip light, an 80 Hz low cut, a noise gate, a one-knob compressor with a gain-reduction meter, a 3-band EQ with a sweepable mid, two effects sends, pan, mute, solo and a fader with a live meter. Each effects bus plays one of nine programs: hall, room or plate reverb, echo, ping-pong or slapback delay, chorus, flanger or phaser. It's tuned for live use: the smallest audio buffer your device allows, inputs without the browser's voice processing, and dynamics with no look-ahead, with the measured latency shown on screen. Record your performance, export the mix as WAV or MP3, save mixes to recall later, and map the controls to a USB MIDI controller. New to mixers? The Learn section walks through every control on a five-piece band, one lesson at a time: press Show me and watch and hear each control change the sound live, with the waveform, the EQ curve, the stereo picture and the meters drawn as you play.
- Choose Mixer, then Add audio files (one per channel), drop files on channels, pick Microphone as a channel's source, or press Load demo song.
- Press Play and set each channel's gain so the clip light stays dark, then balance the faders.
- Shape the sound with Low cut and EQ, spread it with Pan and add reverb with FX send.
- Export the mix as WAV or MP3. To learn what each control does, open Learn to use a mixer and press Show me on each lesson.
Frequently asked
What's the difference between gain and the fader?
Gain sets how much the input is amplified at the start of the channel, so the signal is strong but never clips. The fader sets how loud that channel is in the mix. Set gain once, then mix with the faders.
How do I use a mixer for the first time?
Work down each channel strip: set the gain, switch on low cut for anything that isn't bass or kick drum, adjust EQ only if something sounds wrong, pan instruments apart, add a little reverb, and balance with the faders while watching that the master stays out of the red. The Learn section shows each step live.
Can I mix live microphones and instruments?
Yes. Pick a microphone or audio interface as a channel's source: mono, input 1, input 2 or stereo. It plays through the channel's gate, compressor, EQ, effects and fader in real time. Use headphones to avoid feedback, and press ● Rec to record the whole mix, live inputs included.
How low is the latency?
As low as your browser and device allow: the mixer asks for the smallest audio buffer (about 3 ms in Chrome), switches off echo cancellation, noise suppression and auto gain on inputs, and runs its gate and compressor without look-ahead. The total shown on screen includes your operating system and audio device. Wired headphones and a USB audio interface give the best results; Bluetooth adds 100–300 ms that no software can remove.
Which effects are there?
Two effects buses, like a Yamaha MG desk's FX section. Each can play hall, room or plate reverb, echo, ping-pong or slapback delay, chorus, flanger or phaser, with a knob for its size, time or speed. Every channel has a send to each bus, and the master has a return for each.
How many channels can I use?
Choose 4, 6, 8, 12 or 16. The desk starts with 4 and grows when you add more tracks. Empty channels do no processing, so the mixer stays light on slower computers and phones.
Can I use a MIDI controller?
Yes, in Chrome, Edge and Firefox. Press MIDI controller, click any knob, fader or button on screen (or Play, Stop and Rec), then move a control on your controller to link them. Links are remembered on this device.
What files can I mix?
Any audio your browser can open: MP3, WAV, M4A, OGG and the audio from video files. Stems that start at the same time line up automatically.
Are my files uploaded?
No. Everything is mixed on your device and nothing is uploaded.
More from the Music drawer
Other tools kept in this drawer, plus a few favourites from the bench.