OmniChain is a powerful, efficient, self-updating visual workflow tool built specifically for large language models. It guides AI language models through custom logic processes, significantly boosting efficiency. OmniChain utilizes chain-of-thought memory to store and recall information, making decisions based on this gathered knowledge. It enables users to create workflows that function like tireless virtual assistants, operating 24/7 and only pausing when the user chooses to interact. OmniChain can also guide smaller models through specific processes, enhancing efficiency and cost-effectiveness. Furthermore, it can access underlying operating systems to read and write files, execute commands, generate and run NodeJS code snippets or scripts, utilize APIs, and automate tasks. OmniChain is privately (self-hosted) and fully open-source, available for commercial use under the permissive MIT license.