About mobile
Enjoy more than 20,000 Curated Videos from all over the World
in the Web's first SOCIAL Video Encyclopedia!!!
About 1

All of Check123’s videos are validated by professional experts in different fields, and prioritized by quality - helping you find the best possible answer to your search!

Next to each video, you will find its Quality Rating (1-10) alongside two metrics: Informative and Entertaining. That way you’ll always know the quality of the video you are about to watch!

All of Check123’s videos are sorted and organized by categories and tags - allowing you to easily explore your favorite fields of interest!

And next to each video, you can enjoy our hand-picked recommendations - allowing you to further explore the chosen subject ('Essentials' playlist under the video), or discover related topics (in the 'Tags' sidebar on the right).

About 3

Check123 offers a safe, filtered environment; constructed specifically for education and curated by professional experts in different fields. All our videos have been validated by humans, so there will be no surprises…

Check123 aspires to change the way people consume knowledge.
We cannot do it alone.
We rely on our inspiring video creators - building together the world's first Video encyclopedia. Wanna join?

About 4
About 5

Check123 is much more than a Video Encyclopedia! Using our various social accounts, we help people from all over the world expand their knowledge in a quick and easy way.