UptimeBar is an open-source desktop application designed to monitor the uptime status of multiple websites and services directly from the menu bar on macOS or the taskbar on Windows. It provides users with a consolidated view of their entire fleet’s uptime at a glance, making it suitable for individuals or teams responsible for maintaining the availability of web services. 13 or later) and for Windows 10/11, and can be downloaded and installed for free.
Users can freely mix and match these providers within the same interface, and support for Uptime Kuma is planned for the future. io to be configured with a custom base URL, enabling monitoring of private deployments. The tray icon always reflects the aggregate up/down status, and opening the app’s popover reveals the status of each monitor, including latency and the duration of any downtime.
UptimeBar is designed to be lightweight and to operate quietly in the background, continuously monitoring the configured endpoints. It delivers native operating system notifications the moment a monitor transitions between up and down states, ensuring users are immediately alerted to outages without relying on SMS. The first poll after launch is silent to prevent notification floods on startup. The app is also engineered to handle provider errors gracefully, marking them as “Unknown” rather than “Down” after repeated failures, which helps avoid false outage reports due to third-party service hiccups.
As an open-source project, UptimeBar’s source code is available on GitHub, where users can review its implementation, report bugs, and suggest new features or integrations. The roadmap is shaped by user feedback, and the app is free to use on both Mac and Windows platforms.
UptimeBar sits in PulseGate's Observability & monitoring category. It focuses on monitoring the uptime status of multiple websites and services directly from the desktop menu bar or taskbar. It is built as a B2B product for website administrators. UptimeBar is free to use. UptimeBar is available on the web, macOS, and Windows.
UptimeBar first shipped in 2026. Development happens publicly on GitHub with 74 commits in the last 90 days. PulseGate's similarity index finds few close equivalents — UptimeBar occupies a relatively distinct niche. Key capabilities include uptime monitoring, Native OS notifications, and multi-provider support.
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