YouTube is an online video sharing website owned by Google.

Launched in 2005, it has grown from a relatively small platform for amateur videos, to one of the largest video communities on the web.

For many people it's a source of entertainment and a great way to learn and be inspired.

Over the years, YouTube has seen its fair share of success stories, from viral videos that were watched millions of times, to content creators making a living on the platform.

Here is a look at some of the most inspiring YouTube success stories.

One of the first major successes on YouTube was singer-songwriter Justin Bieber, whose videos posted by his mother were seen by Scooter Braun, a talent manager, who eventually signed him to Island Records. Bieber went on to become an international superstar.

Another success is UK neurosurgeon and YouTuber Dr. Samer Najjar. After struggling to secure a job in his native Egypt, he turned to YouTube to document his experience and posted a series of medical tutorials, gaining over 1 million subscribers in the process.

The documentary filmmaker Casey Neistat forged a successful career on YouTube.

His channel gained over 300,000 subscribers and featured clips about his travels and everyday life.

He went on to work with companies such as Samsung and Ford, becoming a highly respected figure in media.

Another incredible success story is travel vlogger Amira Dosmar, better known as Superamira.

She quit her job in 2015 to travel the world with her camera and started her channel on YouTube, where she documents her experiences.

Her channel has gained over 1.7 million followers, and she has eventually become an official ambassador for Turkish Airlines.

The YouTube success stories above prove that with determination, anything is possible. Many channels are started every day, and while many will never take off, some may become the success stories of tomorrow.