Weight Lifting

Does anyone know if weight lifting increases pitching velocity? Thanks.

Pretty broad question, but for the most part yes. As long as you know somewhat about what youre doing.

Many websites say it doesn’t help and some say it does. I wouldn’t consider it “broad”.

It is a broad question because there are so many aspects to weight lifting. There are movements that are beneficial to pitchers and others that are detrimental.
To answer the question, Yes lifting is beneficial, along with other training. One of the goals to increase velo should be to strengthen the legs and core. Of course there are several other variables in gaining and maintaining velocity.

Think of it like this. Weight lifting makes you more athletic, being more athletic if utilized correctly will make you a more efficient pitcher.