GitHub vs Selenium: What are the differences?
GitHub: Powerful collaboration, review, and code management for open source and private development projects. GitHub is the best place to share code with friends, co-workers, classmates, and complete strangers. Over three million people use GitHub to build amazing things together; Selenium: Web Browser Automation. Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily, it is for automating web applications for testing purposes, but is certainly not limited to just that. Boring web-based administration tasks can (and should!) also be automated as well.
GitHub can be classified as a tool in the "Code Collaboration & Version Control" category, while Selenium is grouped under "Browser Testing".
"Open source friendly", "Easy source control" and "Nice UI" are the key factors why developers consider GitHub; whereas "Automates browsers", "Testing" and "Essential tool for running test automation" are the primary reasons why Selenium is favored.
Selenium is an open source tool with 14.9K GitHub stars and 4.97K GitHub forks. Here's a link to Selenium's open source repository on GitHub.
According to the StackShare community, GitHub has a broader approval, being mentioned in 4708 company stacks & 6088 developers stacks; compared to Selenium, which is listed in 776 company stacks and 440 developer stacks.