Reddit Upvote bot is a nice and straight forward bot which allows you to upvote content automatically on Reddit. The bot also has the ability to comment on Reddit posts, and supports multiple accounts.
By botting upvotes on Reddit you can quickly get your responses seen by other users. Reddit Upvote Bot includes customisable settings such as sleep timer and configurable number of upvotes. What's more there is full proxy and multi-thread account support to speed things up.