The rapid mass-testing programme allows people throughout Liverpool to get tested at a number of centres, including at the Reds' Anfield stadium.
The tests will help identify more positive cases from individuals who are not displaying symptoms so they can self-isolate and prevent the virus from spreading.
The managers of the city's two clubs are urging locals to take part.
Everton manager Carlo Ancelotti said: "Hopefully now rapid mass testing is available to everyone in Liverpool, it will mean we can control the virus better, help the city get out of tier 3 restrictions once the lockdown ends and eventually allow us to celebrate Christmas with our loved ones.”
With the rapid nature of the test, Liverpool’s Jurgen Klopp has stressed the importance of people getting themselves checked out.
Let's start the fightback against COVID - #LetsGetTested ✊— Liverpool FC (@LFC) November 7, 2020
More mass testing centres to open in Liverpool - full information 👉 https://t.co/nz3o7rszPh (follow @lpoolcouncil). pic.twitter.com/8R4i0DoLsX
"Regular testing has kept the Premier League going and allowed us to be out on the pitch every week," Klopp said.
"It takes 10 seconds to take a test and 10 days to make a difference."