
Free
About
OSC Messaging keeps theatre and live-event teams in sync with fast, channel-based chat, live intercom, and OSC show control - all running entirely on your local Wi-Fi. No server, no accounts, no internet, no cloud.
Originally developed as a way for Front of House sound to chat with backstage about wireless mic issues, patching, and everything else that comes up during a show.
How it works
- Open the app on every device on the same Wi-Fi network - they find each other automatically
- Organize conversations by department channel (Audio, Lights, Deck, Props, Video, FOH)
- Talk live on per-channel intercom party lines with push-to-talk, or send voice clip messages
- Share photos, set per-channel notifications, and use quick replies
- Send and receive OSC from consoles and show-control software
- Use a Mac as a bridge into your existing wired comms system
- Show your Wi-Fi join QR code so new devices can hop on fast
Messages never touch the internet - they stay on your network and disappear when everyone leaves. If you're not on the Wi-Fi, you're not in the show.
Show more
What's New in OSC Messaging
1.1.0
August 10, 2026
OSC Messaging is now completely server-free. Everything runs on your local Wi-Fi - no internet, no accounts, no cloud. - Devices find each other automatically on the same network - Live intercom party lines per channel with push-to-talk - Voice clip messages - Use a Mac as a bridge to your existing wired comms system - Bidirectional OSC for show-control gear - Wi-Fi join QR code, shareable across devices - Messages are ephemeral - they leave when you do Built for backstage. Your show, your network.
More


