It was at the end of July that the Swiss authorities decided to launch a criminal investigation against Fifa president Gianni Infantino and the Swiss public prosecutor Michael Lauber after a number of secret meetings between them.
Lauber, who previously investigated suspected corruption in top football, has, among other things, been accused of having helped Infantino with a television rights investigation in 2016.
Infantino and Lauber have denied any wrongdoing and now Fifa's independent ethics committee has chosen to release Infantion.
"Based on information to date, nothing that violates Fifa regulations has been found," Fifa wrote in a statement.
Infantino was elected Fifa chairman in 2016 after representative Sepp Blatter was forced to resign after the worst bribery scandal in the organization's history.