GitHub is where your code lives online. It stores every version of every file, so you can always go back to what worked.
Most open-source projects live on GitHub. Most deployment platforms (Vercel, Netlify, Render) connect to GitHub with one click. Most AI coding tools assume you're using it. When you use GitHub, everything just works together without extra configuration.
Every time you push code, GitHub saves a snapshot. Broke something? Roll back. Want to try something risky? Create a branch, experiment, and merge it back — or throw it away. This safety net means you can move fast without fear.
Services like Vercel watch your GitHub repository. Push code, and your site updates automatically. No manual uploads, no FTP, no "which version is on the server?" confusion. GitHub is the trigger for your entire deployment pipeline.
Even if you're working solo today, GitHub makes it easy to share code later. Pull requests, code review, issue tracking — it's all there when you need it. And if you're working with an AI coding assistant, your code is already in the place it expects.
GitHub's free tier gives you unlimited public and private repositories, unlimited collaborators, and GitHub Actions for automation. You won't hit a paywall while learning or building side projects.