Ontime

Ontime provides a browser‑based interface for planning and executing live‑event rundowns, allowing users to create a run‑of‑show, track multiple timers, and manage cues in real time. The tool can be run locally on macOS, Windows, or Linux, or hosted via Ontime Cloud for zero‑setup online access, and it works on any device with a web browser, including tablets and phones.

It supports role‑specific views for directors, operators, backstage crew, and presenters, enabling synchronized communication of timing changes, delays, and data throughout a production. Integration points such as OSC and other protocols allow the system to connect with external hardware or software used in live broadcasting and stage management.

The software is open source and positioned as a stable, cross‑platform solution for productions of varying size, from rehearsals to large festivals, where maintaining a shared schedule and precise timing is essential.