The Bayern Munich star still needs some work if he is to be ready in time for the new season after missing the World Cup through injury.
The 31-year-old was forced to sit out the World Cup because of a troublesome back problem he picked up in training shortly before the tournament.
However, the forward is hoping he will be back to his best by the time the new season starts, even though he is still not in peak condition.
"I'm fine, really good," he told Kicker. "I just need a little time to prepare my body for the new season. Everything is good."
Ribery's compatriots were eliminated from the World Cup by Germany at the quarterfinal stage, but Ribery said there is no shame in losing to Joachim Low's side.
"It's a shame France are out," he said. "It was a very tight match. But Germany also have a great team."