URLlister 0.4.0 (March 2021) is Windows freeware. Manually click through a long list of URLs, as if with a TV remote-control. Each new click passes the next URL on the list into your Web browser, and loads it in a new tab. No more manual copy-paste needed, for slow and careful ‘eyeball’ manual checking of a list of URLs. More details on GitHub.

It may not be ideal to have lots of tabs opening and accumulating over time, and you may prefer not to have to manually close them. In which case the Tab Wrangler extension for Chrome-based Web browsers can handle that. It “automatically closes idle tabs after a designated time”.

See also the Chrome browser extension Load URLs At Interval, which moves through the URL list at a set timed interval. The URLs are loaded into the same tab, rather than a new tab opening for each.