Now in Beta — Free for Early Adopters

Where music teams
collaborate in real-time

Upload bounces, MIDI files, and stems. Leave timestamped comments directly on the waveform. Compare versions side-by-side. Ship tracks faster with your entire team in sync.

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Join 200+ producers already collaborating
Collab — Summer EP / Main Bounce v3
📁 Summer EP
🎵 Client Sessions
🎤 Beat Pack Vol.2
Drop hits hard here
Bring vocals up 2dB
1:24
3:18
J
1:24 Jake 2m ago
Drop hits hard here, maybe add some reverb tail to the snare?
M
2:15 Maya 5m ago
Agreed! Also the bass could be sidechained harder in the chorus.

Everything your team needs
to finish tracks faster

Built for the way modern music teams actually work — from first demo to final master.

Collaborate

Waveform Comments

Click anywhere on the waveform to leave a timestamped comment. Your team sees exactly what you're hearing. Resolve comments as you address feedback.

Team Management

Invite producers, engineers, and artists with role-based access. Owner, Admin, Member, and Viewer roles control who can do what.

Real-Time Presence

See who's online and listening right now. Live indicators show active collaborators on every project and asset.

Review & Share

Version A/B Compare

Compare any two versions side-by-side with synced playback. Full version history so you never lose a revision.

Review Workflow

Request reviews from team members. Approve tracks or request changes with notes. Track review status across all your assets.

Secure Sharing

Generate expiring share links with permission levels — view, comment, or download. Control who hears what.

Notifications

Get notified when someone comments, requests a review, or uploads a new version. Never miss feedback.

Audio & MIDI

MIDI Piano Roll

Upload MIDI files and view them in a professional DAW-style piano roll. 128-note range, velocity shading, multi-track colors, beat grid, and tempo map — all rendered in real-time on Canvas.

Drag & Drop Upload

Drop audio, MIDI, or stem files right onto the project. Waveforms, metadata, and MIDI data are extracted automatically.

Stem Packs

Group multiple tracks as stem packs. Color-coded stems with solo/mute controls for each individual track.

Organize & Navigate

Markers & Regions

Color-coded markers on the timeline — chorus, drop, intro. Point markers or range selections that everyone can see and jump to.

Session Notes

BPM, key, mix notes, session details — keep everything in context right alongside the audio.

Project Organization

Assets organized by type — Audio, MIDI, Stems, and Other. Activity feed and member list for every project.

Activity Feed

See everything happening across your projects — uploads, comments, reviews, shares — in one chronological stream.

From demo to master
in half the time

01

Upload

Drag your bounce, MIDI, or stems into the project. Waveforms and metadata are generated automatically.

02

Review

Your team listens and drops timestamped comments right on the waveform. No more "at like 1 minute 30 or something".

03

Iterate

Upload new versions. Compare A/B. Resolve comments as you address them. Full version history, always.

04

Ship

Get approvals through the review workflow. Share securely with clients and labels. Move to the next track.

Native apps, everywhere

Built natively for each platform. No Electron, no web wrappers — real performance.

macOS
SwiftUI
Native Canvas rendering, keyboard shortcuts, sidebar navigation
iOS
SwiftUI
Shared code with macOS, touch-optimized, pull-to-refresh
Android
Jetpack Compose
Material 3, ExoPlayer, Hilt dependency injection
Backend
Elixir / Phoenix
Real-time WebSocket channels, fault-tolerant

Built for keyboard-first
workflows

DAW-like shortcuts that feel natural. Navigate, play, seek, comment — all without touching the mouse.

Space Play / Pause
← → Seek 5 seconds
⇧ + ← → Seek 15 seconds
⌘ + U Upload file
⌘ + K Focus comments
⌘ + ⇧ + N New project

Start free. Upgrade when you're ready.

Monthly Annual Save 20%
Free
$0/mo
For solo producers getting started
  • 3 projects
  • 2 GB storage
  • Unlimited comments
  • Waveform visualization
  • MIDI piano roll
  • 1 collaborator per project
  • Basic share links
  • Activity feed
Start Free Trial

Get Collab

Native apps for every platform. Built for speed, designed for music.

Download for macOS Android (Coming Soon) iOS (Coming Soon)

macOS 14.0+ required. Ad-hoc signed — right-click > Open on first launch.

Ready to collaborate?

Join hundreds of producers who stopped emailing bounce files.

Download Free