according to the hindus,they have 3 main gods .they are :shiva,vishnu,and brahma.these 3 male gods created this world.these gods are known as the "trimurthis".lord shiva is the god of destruction.lord vishnu is the generator,lord brahma is the operator.in order to maintain the creation,lord vishu took birth on this earth as "avatars",like krishna,ram,etc.
Vishnu is the preserver of Hinduism.He is also a part of the Trimurti.
Lord Vishnu
Vishnu is the Sumpreme god of the Hindu religion and a preserver.
Vishnu is the preserver and sustainer of life on Earth
lord vishnu
The supreme deity in Hinduism, known as the preserver of the universe and also referred to as Maha Vishnu, is Lord Vishnu.
All Gods or Goddesses preserve the universe, whether it is Shiva, Vishnu, or the Mother Goddess, Durga. But most hindus worship Vishnu (they are known as Vaishnavas and make the majority of hindus) and consider him to be the preserver God.
The trinity of Brahma the creator, Vishnu the preserver, and Shiva the destroyer
For most Hindus, Vishnu is the Supreme God. He is the preserver of the Universe and comes down to earth in different forms. So far he has been down nine times and they say that he will come once more, at the end of Kali Yug. The nine avataras of Vishnu include Rama, Krishna, and Buddha. He is supposed to appear again 427,000 years from now when the Kaliyuga (present age) is near its end.
Brahma: The Creator Vishnu: The Preserver Shiva: The Destroyer
I believe you are referring to the Hindu God "Lord Vishnu".
Hindu consider him as the preserver of the universe, a loving and forgiving figure who brings salvation.