An online mixing & mastering engine that's fast, easy to use, and sounds incredible. Drop in your song and get a loud, polished, release-ready master in seconds.
No sign-up · No upload to a server · Your files never leave your device
Everything you'd expect from a pro mastering suite
Toggle between the raw mix and the mastered version. Same song — louder, wider, and clearer.
Upload any song to hear it mastered instantly — nothing is uploaded to a server.
From raw recording to finished master — no audio-engineering degree required.
Drag in MP3, WAV, FLAC, OGG, M4A — or load several tracks and mix them together on the timeline.
Choose a mastering style like Universal, Warm, Club or Bright — then fine-tune EQ, compression and width to taste.
Render offline and download studio-quality WAV (16/24-bit) or MP3 up to 320 kbps. Ready to upload anywhere.
Professional processing built on the Web Audio API — real-time, and completely private.
Layer unlimited tracks with per-track volume, stereo pan, mute and solo. Slide clips along the timeline to arrange them in time.
Nine hand-tuned mastering styles apply EQ, compression, width and warmth together — instant, professional results.
5-band EQ, compressor with GR metering, Mid/Side stereo widener, analog saturation, output gain and a brickwall limiter.
Live spectrum analyzer, L/R peak meters and a clip indicator so you always know exactly how your master sounds.
Decodes any audio your browser supports. Exports WAV 16/24-bit or MP3 192/320 kbps at 44.1 or 48 kHz.
All processing happens on your machine. Nothing is ever uploaded — your music stays yours.
Start from a style, then make it your own.
Test everything for free. Subscribe only when you want to download your masters.
Already a member? You get a referral code to share — every friend who subscribes with it gets 15% off their plan.
Drop in a song and get a release-ready master in seconds.
Upload a Track