Ontime
Ontime is a browser-based, open-source rundown, scheduling, cueing, and event timer app for live events and broadcasts with real-time team collaboration and integrations.

Ontime is a browser-based application for managing event rundowns, scheduling, cueing, and live show timing. It is built for real-time collaboration across production roles and for reliable operation in live environments.
Key Features
- Rundown editor to create, reorder, and manage cues, notes, and event properties
- Live timer views with customizable layouts and saved presets for different screens
- Role-oriented operator and signage views for directors, backstage, and public displays
- Real-time delay workflows to track runtime changes and communicate updates to the team
- Automation and control via operator control or system clock-driven automated rundowns
- Integrations via OSC, HTTP, and WebSocket APIs, plus a Companion module for show-control workflows
- Import support for rundowns from spreadsheets (e.g., Excel or Google Sheets)
Use Cases
- Stage management for conferences, festivals, and touring productions with shared timing and cues
- Broadcast and streaming productions needing synchronized rundown and operator views
- Venue signage for public schedules and backstage operational displays
Limitations and Considerations
- Ontime Cloud does not currently support OSC automation; self-hosted deployments can use OSC.
Ontime is well-suited to productions that need a central, shared source of truth for scheduling and show timing. Its multi-view approach and integration options make it practical for both small teams and complex live workflows.