Umami shows website visits, popular pages, traffic sources and campaign results. You can track custom events such as clicks or sign-ups and use reports to follow visitor paths and conversions. Filters help compare periods, devices and countries.
The open-source software can run on your own infrastructure, or you can use Umami Cloud. Hosting, maintenance and available features differ by setup and plan. The provider describes cookie-free analytics; your event configuration still determines what information you send.
Source: Product overview

