What Is GitHub & How It Differs from Git

Git and GitHub come up in the same breath so often that many people assume they're the same thing. They aren't, and mixing them up makes almost every other GitHub concept harder to follow. A teammate who says "push it to Git" usually means GitHub, and that small slip hides a real difference. Getting the two straight early makes every later screen easier to read.

Git is a version control tool. It runs on a computer, tracks changes to files, and works without an internet connection. GitHub is a website built around Git. It hosts copies of Git repositories online and adds what a team needs to work on them together: a place to discuss changes, review each other's work, track tasks, and control who can see what. You can use Git without GitHub, and other sites host Git projects too, but almost everything you do on GitHub is Git underneath. GitHub also adds a web interface, which is how most people outside engineering use it.

The split matters even more now that AI app builders save projects straight to GitHub. Once you can tell the tool from the platform, it's much easier to see where your work is stored, who can reach it, and what happens when you click a button. It also explains why some features need GitHub, while others work anywhere Git runs.

Git as a version control tool

Git is a free, open-source version control tool that runs on a computer. It records changes to the files in a project folder, keeps the full history in a hidden folder named .git, and works without any internet connection. Every saved change, branch, and earlier version lives on that machine.

Git was built as a command-line tool. Developers type short commands like git commit or git push into a terminal, and Git replies with plain text. That's why Git can feel intimidating from the outside: there are no buttons, just a blinking cursor waiting for the next instruction.

Plenty of tools now put buttons on top of Git, including GitHub's website, desktop apps, and code editors. Underneath, they all run the same Git, so the history they create is identical no matter which one made it.

GitHub as a collaboration platform

GitHub is a website that hosts Git repositories online and adds the tools a team needs to work on them together. A repository on GitHub holds the same history Git creates, but now it's reachable from any browser, by anyone with permission.

On top of that shared copy, GitHub adds:

• Pull requests for proposing and reviewing changes before they're merged
• Issues for tracking bugs, ideas, and tasks
• Actions for running automatic checks and deployments
• Projects for planning work on boards and tables

For many people outside engineering, this web interface is the only part of Git they ever touch. Reading a change, commenting on it, or approving it all happens in the browser, with no commands involved.

Pro Tip! Watching a busy repository floods the inbox. Custom notifications can limit alerts to releases or direct mentions.

Git vs. GitHub

Git and GitHub are often used as if they mean the same thing, but they solve different problems. Git is the tool that records versions. GitHub is a service that stores Git repositories online and helps people collaborate on them.

An analogy helps. Git works like the camera that takes every snapshot of a project, while GitHub works like a shared album where a team keeps those snapshots, comments on them, and decides which ones to keep. A camera works fine without the album, but the album would be empty without the camera.

In practice, some actions are pure Git, like saving a commit, and some are pure GitHub, like opening a pull request or assigning an issue. Knowing which is which makes instructions easier to follow, and it explains what an AI tool means when it says it pushed changes to GitHub.

Other Git hosting platforms

GitHub is the best-known home for Git repositories, but it isn't the only one. Because Git itself is open source, any service can host Git repositories, and several large ones do:

• GitLab, often chosen by teams that want to run the whole platform on their own servers
• Bitbucket, from Atlassian, a common pick for teams that already use Jira
• Azure Repos, part of Microsoft's Azure DevOps tools

The core ideas carry over almost unchanged. Repositories, commits, branches, and merging work the same way everywhere because they come from Git, not from the website. What changes is the wording around collaboration. GitLab, for example, calls a pull request a merge request. Skills learned on GitHub transfer, and a project can move between hosts with its full history intact.

Personal accounts vs. organizations

Every person on GitHub has a personal account: a username, a profile, and a space for their own repositories. A personal account belongs to exactly one person.

Teams and companies use organizations instead. An organization is a shared account that owns repositories on behalf of a group. People join it with their personal accounts, and owners decide who can see or change each repository. Members can also be grouped into teams, such as Design or Marketing site, so access is granted to a whole group at once ^[1].

Imagine a bakery's website living in the account of the designer who built it. If that designer leaves, the repository leaves with them. In an organization named after the business, the repository, its history, and everyone else's access stay exactly where they are.

Pro Tip! Create an organization early, even for a two-person project. Moving repositories out of a personal account later means redoing everyone's access.

How GitHub grew from 2008 to today

GitHub went live on 10 April, 2008, three years after Git itself, with a simple aim: make it easier for developers to work together on projects with Git ^[2]. One of its founders, Scott Chacon, also co-wrote Pro Git, the standard reference on the tool.

Free hosting for public open-source projects helped GitHub become the default place to publish and discover code. By 2018 it had more than 28 million developers, and Microsoft acquired it that year for $7.5 billion in stock ^[3].

Growth has only sped up since. More than 36 million new developers joined GitHub in a single recent year, more than one every second, and around 80% of them used an AI coding assistant within their first week ^[4]. For many newcomers, an AI tool is now the way in.

GitHub as the shared home for AI-built code

AI app builders, code editors, coding agents, and human teammates can all work on the same project, and GitHub is usually where their work meets. Each tool keeps its own copy of the files, but the repository on GitHub is the version they all sync with. Some builders describe the connected repository as the project's source of truth.

That arrangement has practical effects. A change made in a code editor can show up in an AI builder after a sync, and a fix pushed by a teammate reaches every tool connected to the repository. Deployment services often watch the repository too, publishing a new version of the site whenever the main branch changes.

It also makes GitHub the place to check when tools disagree. If an AI builder and a code editor show different versions of a page, the repository's history shows which change came last and where it came from.

GitHub Desktop and other no-terminal tools

Working with Git doesn't require a terminal. Several free tools put buttons on top of the same commands, so files can be saved, shared, and synced without typing anything:

• GitHub's website for editing, committing, and reviewing in the browser
• github.dev, a full code editor that opens in the browser when the period key is pressed on a repository page ^[5]
• GitHub Desktop, a free app for macOS and Windows that clones repositories and commits changes with a click
• Code editors such as Visual Studio Code, which show changed files and commit buttons in a side panel

All of these run real Git underneath, so the history they create is the same as one built with commands. The browser covers most everyday tasks, and a desktop app becomes useful once files need to be edited on a computer.