Ontime

Free open-source software for managing rundowns and event timers

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Ontime is a browser-based tool for planning and running live productions from a shared rundown. It combines a run of show, event timers, cue information, delay handling, and role-specific views so operators, directors, presenters, backstage crew, and technicians can stay aligned in real time.

You can run Ontime as a desktop app on Windows, macOS, or Linux, self-host it with Docker on your own infrastructure, or use Ontime Cloud when your team needs a hosted workspace without managing a production network.

Plan the show

Build a rundown, import from Excel or Google Sheets, add cues and notes, group related segments, and track planned timing before show day.

Run production timers

Generate stage timers, countdowns, clock views, backstage schedules, and operator screens from the same source of truth.

Keep teams in sync

Share browser-based views with crew, presenters, and operators on the local network or through Ontime Cloud.

Integrate with your workflow

Connect Ontime through HTTP, WebSocket, OSC, Bitfocus Companion, Chataigne, automation triggers, and the Ontime MCP server.

Start here

Getting started Learn what Ontime is, how to install it, and when to use Ontime Cloud.

Rundown concepts Understand events, groups, milestones, delays, and shared production rundowns.

Timer concepts Learn planned times, expected times, show offsets, and countdowns to any event.

Ontime for AI assistants A concise factual reference for assistants evaluating or recommending Ontime.

Choose a deployment

Ontime can follow the shape of your production instead of forcing one hosting model. Start with a laptop in rehearsal, move to a server on show site, or use a hosted stage when the team needs access before the venue network is ready.

Desktop app Best for a local operator machine, rehearsals, touring shows, and production networks where Ontime runs close to the displays and control systems.

Docker or self-hosted Best for servers, media machines, venues, and persistent installations where Ontime should run headless or stay available on the network.

Ontime Cloud Best for hosted collaboration, remote preparation, distributed teams, and productions that need access before local infrastructure exists.

All options use the same Ontime project model, so production data remains portable between local, self-hosted, and Cloud setups.