What Is GitHub? Features, Uses and Beginner’s Guide

Introduction

Picture this. You have spent weeks building a web application on your laptop. The code works well, and now you want to share it with a colleague so they can help improve it. You could email files back and forth, but that gets confusing fast. You need somewhere organized, accessible, and built for exactly this kind of collaboration.

That is where GitHub comes in. If you have ever searched for what is GitHub and found the answers confusing, this guide is for you. GitHub is an online platform where developers store, share, and collaborate on code using Git, the version control system that tracks changes to files.

Before diving into GitHub specifically, it helps to understand Git first. If you are new to version control, reading What Is Git? How Version Control Works for Beginners will give you a strong foundation to build on.

Quick Answer: What Is GitHub?

GitHub is an online platform that allows developers to host, manage, and collaborate on Git repositories. It provides tools for code review, issue tracking, project management, and team collaboration. GitHub makes it easier for individuals and teams to share code, contribute to open-source projects, and manage software development workflows in one centralized online location.

What Is GitHub?

GitHub is an online code hosting and collaboration platform built on top of Git. It gives developers a place to store their Git repositories remotely, share their code with others, and work together on software projects from anywhere in the world.

Microsoft acquired GitHub in 2018, and the platform has since continued to grow as a central hub for developers, open-source projects, and software teams of all sizes. GitHub is not Git itself. It uses Git as its underlying version control technology and adds a wide range of web-based tools and features on top.

You can access GitHub through a web browser, through the GitHub CLI, through GitHub Desktop, or through standard Git commands in your terminal. GitHub offers both free and paid plans. For the most current pricing details, visit the official GitHub pricing page at github.com/pricing.

What Is the Difference Between Git and GitHub?

This is one of the most common points of confusion for beginners, and it is worth addressing clearly. Git and GitHub are related but they are two very different things.

Git is a distributed version control system that runs locally on your computer. It tracks changes in files, manages project history, and allows you to work on branches and commits without needing an internet connection. Git was created by Linus Torvalds in 2005 and is free, open-source software.

GitHub is an online platform that hosts Git repositories and adds collaboration features on top. It was founded in 2008 by Tom Preston-Werner, Chris Wanstrath, PJ Hyett, and Scott Chacon. GitHub requires an internet connection because it is a cloud-based service. GitHub did not create Git, and you can use Git without ever using GitHub.

Here is a side-by-side comparison:

How Does GitHub Work?

At its core, GitHub extends what Git does locally and moves the collaboration part online. Here is the basic workflow:

1. A developer creates a new repository on GitHub or clones an existing one to their local machine.
2. They write and edit code locally, using Git to track changes and create commits.
3. They push those commits from their local repository to the remote repository on GitHub.
4. Collaborators can then view the repository, clone it to their own machines, or fork it to their own GitHub accounts.
5. Contributors propose changes through pull requests, which others can review and comment on.
6. Repository owners review the proposed changes and merge approved ones into the main codebase.

Two concepts are particularly important here. A remote repository is simply the version of your repository that lives online, on GitHub in this case, rather than on your local machine. A fork is a copy of someone else’s repository that appears on your own GitHub account, allowing you to make changes without affecting the original. Cloning downloads a repository to your local computer so you can work on it directly.

What Is a GitHub Repository?

A GitHub repository is an online storage space where your project files, their history, branches, and related collaboration tools all live together. Think of it as a project folder hosted on GitHub that anyone with the right access can view and contribute to.

Repositories come in two types. A public repository is visible to anyone on the internet. Anyone can view the code, clone the repository, or fork it. A private repository is visible only to the owner and any collaborators they specifically invite.

A typical GitHub repository contains:

• Source code files organized in folders
• A README.md file that describes the project
• Branches for different lines of development
• A full commit history
• Issues for tracking bugs and tasks
• Pull requests for proposing and reviewing changes
• Releases for marking specific project versions

The README.md file deserves special mention. It is the first thing visitors see when they open your repository. A well-written README explains what the project does, how to install it, how to use it, and how others can contribute.

What Is a Pull Request on GitHub?

A pull request, often abbreviated as PR, is a formal proposal to merge changes from one branch into another. It is one of the most important collaboration features on GitHub.

When a developer wants to contribute changes to a project, they do not simply push directly to the main branch. Instead, they follow this workflow:

1. They create a new branch or fork the repository.
2. They make their changes and commit them to that branch.
3. They open a pull request on GitHub, describing what changes they made and why.
4. Reviewers examine the changes, leave comments, ask questions, or request revisions.
5. Once the changes are approved, the pull request is merged into the target branch.

Pull requests are important because they create a structured review process. They give teams a chance to catch errors, suggest improvements, and ensure that new code meets project standards before it becomes part of the main codebase.

It is worth being clear about one common confusion: a pull request on GitHub is not the same thing as the git pull command. A pull request is a GitHub collaboration feature. git pull is a Git command that fetches and integrates remote changes into your local branch. They are separate concepts.

What Are GitHub Issues?

GitHub Issues is a built-in tool for tracking tasks, bugs, feature requests, and project-related discussions within a repository. It functions like a lightweight project management system connected directly to your code.

Anyone with appropriate access to a repository can open an issue. Issues can be given descriptive labels such as “bug,” “enhancement,” or “documentation.” They can be assigned to specific team members and linked to project milestones that group related work together.

Issues can also be referenced directly in commits and pull requests. For example, a developer might write a commit message like “Fix login error, closes #42,” which automatically links that commit to issue number 42 and can close the issue when the commit is merged.

A practical example: a developer using a public open-source project notices that a particular feature behaves unexpectedly. They open a GitHub Issue to report the problem, describe the steps to reproduce it, and share the relevant environment details. The project maintainers can then assign the issue, discuss solutions, and track progress.

What Is GitHub Actions?

GitHub Actions is a continuous integration and continuous delivery (CI/CD) platform that is built directly into GitHub. It allows developers to automate workflows that run in response to events in their repository.

In simple terms, GitHub Actions can automatically run tests every time new code is pushed, build a project after a pull request is approved, or deploy an application when changes are merged into the main branch. This automation reduces manual work and helps teams catch problems earlier in the development process.

A few key concepts to understand:

• A workflow is an automated process defined in a YAML configuration file stored in your repository.
• A trigger is the event that causes a workflow to run, such as a push, a pull request, or a scheduled time.
• A job is a set of steps that execute as part of a workflow.
• A runner is the server that actually executes the workflow steps.

GitHub Actions integrates naturally with the rest of GitHub, making it accessible without needing a separate CI/CD service for many common use cases. For more advanced pipeline requirements, teams often evaluate it alongside other options depending on their specific needs.

What Is GitHub Pages?

GitHub Pages is a GitHub feature that allows you to host a static website directly from a GitHub repository. You point GitHub Pages at a branch in your repository, and GitHub serves the files in that branch as a website.

GitHub Pages is commonly used for:

• Personal portfolio websites to showcase projects and skills
• Documentation websites for open-source projects
• Project landing pages that describe what a repository does

GitHub Pages supports custom domains, so you can use your own domain name instead of the default github.io address. It is well suited to static content, meaning websites built from HTML, CSS, and JavaScript files without a server-side application running behind them. If you work with HTML and CSS, GitHub Pages is a practical and accessible way to publish your work online.

What Is GitHub Copilot?

GitHub Copilot is an AI-powered coding assistant developed by GitHub. It integrates with code editors and suggests code completions, generates entire functions, and offers context-aware code recommendations as you type.

Copilot works by analyzing the code and comments in your current file and suggesting what might come next. Developers can accept, modify, or ignore its suggestions. It supports a wide range of programming languages, including Python, JavaScript, and many others.

It is important to clarify that GitHub Copilot is a separate product with its own subscription pricing. It is not a standard feature of a free GitHub account. For current pricing and plan availability, visit GitHub’s official website. As with any code assistance tool, developers should review suggestions carefully rather than accepting them without evaluation.

What Is GitHub Desktop?

GitHub Desktop is a graphical user interface (GUI) application that allows users to work with Git and GitHub repositories without typing commands in a terminal. It provides a visual environment for common Git and GitHub operations.

With GitHub Desktop, you can clone repositories, create and switch branches, commit changes, view diffs, and push to GitHub, all through a visual interface rather than a command line. It is particularly useful for developers who are newer to Git or who prefer working visually.

For a deeper look at this tool, read What Is GitHub Desktop? on TechOriginHub. It is also worth noting that Visual Studio Code has built-in Git integration that many developers use as an alternative to working entirely in the terminal.

What Is GitHub CLI?

The GitHub CLI, short for Command Line Interface, is a tool that allows you to interact with GitHub directly from your terminal or command prompt. Instead of opening a browser to manage pull requests, issues, and repositories, you can perform those actions with commands.

For example, the GitHub CLI allows you to create a new repository, open a pull request, review issues, check workflow status, and merge pull requests without leaving your terminal. It is particularly useful for developers who spend most of their time in a terminal environment and want to keep their GitHub interactions within that workflow.

What Is Forking on GitHub?

Forking creates a complete copy of someone else’s GitHub repository under your own GitHub account. Your fork is independent of the original, meaning changes you make to your fork do not affect the original repository unless you submit a pull request that gets accepted.

Forking is commonly used when contributing to open-source projects. You fork the project to your own account, make your changes, and then open a pull request to propose those changes to the original project.

It is easy to confuse forking with cloning, but they serve different purposes:

A typical open-source contribution workflow using forking looks like this: fork the repository, clone your fork to your local machine, create a branch, make and commit your changes, push to your fork on GitHub, and then open a pull request to the original repository.

What Is the GitHub Workflow for Beginners?

If you are just getting started, here is a practical workflow that covers the most common GitHub tasks:

1. Create a GitHub account at github.com.
2. Create or fork a repository depending on whether you are starting a new project or contributing to an existing one.
3. Clone the repository to your local machine so you can work on the files.
4. Create a new branch for the specific feature or fix you are working on.
5. Make your changes locally in your code editor.
6. Commit your changes using Git with a descriptive commit message.
7. Push the branch from your local machine to your GitHub repository.
8. Open a pull request on GitHub to propose merging your changes.
9. Review and merge after the changes have been reviewed and approved.

Following this workflow consistently helps you develop good habits and makes collaboration much smoother.

How to Create a GitHub Account

Creating a GitHub account is straightforward. Here is the general process:

• Visit github.com in your browser.
• Click the sign-up button and enter your email address.
• Choose a username. This will be your public identity on GitHub, so pick something professional if you plan to use GitHub for work or open-source contributions.
• Create a password and verify your email address.
• Select a plan. The free plan is a solid starting point for most beginners.

GitHub’s interface can change over time, so for the most accurate and current instructions, refer to the official GitHub documentation at docs.github.com.

How to Create a GitHub Repository

Once you have a GitHub account, creating your first repository is simple. Here is the general process:

• Sign in to your GitHub account.
• Click the “New” button or navigate to the “New repository” option.
• Enter a repository name. Use something clear and descriptive.
• Choose whether the repository should be public or private.
• Optionally initialize the repository with a README file, which gives you a starting point.
• Click “Create repository.”

After creation, GitHub displays your new repository page. From here, you can clone it to your local machine, add files, and start working. GitHub also shows you the commands you can use to push an existing local repository to this new remote.

GitHub for Open Source

GitHub has become one of the most widely used platforms for hosting and contributing to open-source software. Open-source repositories contain code that is publicly available for anyone to view, use, and contribute to, subject to the terms of the repository’s license.

If you want to contribute to an open-source project on GitHub, the typical process involves forking the repository, making your changes in your fork, and submitting a pull request to the original project. Project maintainers review your contribution and decide whether to merge it.

Repositories include license files that define how the code can be used, modified, and distributed. Common open-source licenses include the MIT License, the Apache License 2.0, and the GNU General Public License. Reading a project’s license before using or contributing to it is an important step.

Open-source contribution is a valuable way for students and newer developers to build practical skills, gain experience working with real codebases, and become part of the broader software development community.

GitHub for Teams and Enterprises

GitHub is widely used by professional software teams, not just individual developers. Several features make it particularly well suited to team environments.

Organizations are GitHub accounts that group multiple repositories and team members under a single entity. A company or open-source project might operate as a GitHub organization.

Teams within an organization allow administrators to create groups of members with specific access permissions to repositories. For example, a frontend team might have write access to the UI repositories but read-only access to backend repositories.

Code review workflows built around pull requests allow teams to enforce quality standards before changes are merged. Branch protection rules can prevent anyone from pushing directly to important branches like main, requiring pull request reviews instead.

Audit logs provide organizations with a record of significant actions taken within the account, which is useful for security and compliance purposes. GitHub also offers enterprise plans designed for larger organizations with more advanced security, compliance, and administration requirements. Visit GitHub’s official site for current details on enterprise options.

GitHub vs GitLab vs Bitbucket

GitHub is not the only platform for hosting Git repositories. GitLab and Bitbucket are two well-established alternatives, each with their own strengths and focus areas.

All three platforms support Git repositories and offer similar core functionality. The best choice for a given team often depends on factors like existing tool integrations, team size, compliance requirements, and personal preference. Teams already using Atlassian tools like Jira might find Bitbucket a natural fit. Teams prioritizing an integrated DevOps platform might prefer GitLab. GitHub’s large open-source community is one of its most distinctive characteristics.

What Are the Benefits of Using GitHub?

GitHub offers a range of practical benefits for developers and teams:

Remote code storage and access means your repository is available from any device with internet access, and collaborators anywhere in the world can contribute.

Collaboration tools including pull requests, code review, and GitHub Issues make team development more structured and transparent.

GitHub Actions enables automation of testing, building, and deployment workflows directly within your repository.

Open-source contribution opportunities allow developers to participate in projects they use and to build a public portfolio of work.

GitHub Pages provides a free way to publish static websites directly from a repository, which is useful for web development projects, documentation, and personal portfolios.

Integration with development tools such as Visual Studio Code and various CI/CD and project management services makes GitHub a natural fit within broader development ecosystems.

Version history and change tracking through Git mean that the full history of a project is available for review at any time.

One important clarification: while GitHub stores your repository history remotely, it should not be treated as a substitute for a dedicated backup strategy. Repository hosting and data backup serve different purposes, and organizations with important data should maintain appropriate backup practices separately.

Is GitHub Free?

GitHub offers a free plan that covers a substantial amount of functionality for individual developers and small teams. The free plan generally includes unlimited public repositories, unlimited private repositories with some feature limitations, GitHub Actions with certain usage limits, and GitHub Pages hosting.

GitHub also offers paid plans that provide additional features, higher usage limits, and more advanced team and enterprise tools. Because GitHub’s plans and pricing can change, always check the current details at github.com/pricing rather than relying on potentially outdated information.

GitHub Copilot is a separate product with its own pricing and is not included as a standard part of the free GitHub plan. Check GitHub’s official site for current Copilot subscription details.

Common GitHub Mistakes Beginners Make

Confusing Git with GitHub. Git is the version control system. GitHub is the hosting platform. Keeping this distinction clear prevents a lot of confusion.

Pushing sensitive information to public repositories. Passwords, API keys, private credentials, and environment files should never be committed and pushed to a public repository. Once pushed, they can be accessed by anyone and may be indexed by search tools even after deletion.

Working directly on the main branch. Using feature branches for separate pieces of work keeps the main branch stable and makes collaboration easier.

Ignoring the README file. A repository without a clear README is difficult for others to understand and use. Even a basic README adds significant value.

Not using .gitignore properly. Without a .gitignore file, you risk committing files that should not be in the repository, such as build output, local configuration, and temporary files.

Opening vague pull requests. A pull request with no description or a title like “fix stuff” gives reviewers no context. A clear description explaining what changed and why makes the review process much more efficient.

Ignoring pull request review comments. Reviewers leave comments to improve code quality. Engaging with that feedback is an important part of professional collaboration.

Forgetting to sync a forked repository. If you forked a repository weeks ago, the original may have changed significantly. Keeping your fork updated with upstream changes prevents difficult merge conflicts later.

Using force push without understanding it. Force pushing can overwrite remote history and cause serious problems on shared branches. Understand what this command does before using it in any collaborative context.

Not understanding the difference between forking and cloning. Forking creates a GitHub copy for contribution. Cloning downloads a repository locally for development. Both serve different purposes in the workflow.

GitHub Best Practices for Beginners

Use descriptive repository names. A name like portfolio-website is far more useful than project1.

Write a clear and useful README.md. Your README is your project’s front page. Make it informative and welcoming.

Use branches for separate features and fixes. Keep your main branch stable by doing all development work on dedicated branches.

Write meaningful commit messages. Messages like “Add user authentication” are more useful than “update files” when reviewing history later.

Never commit secrets. Passwords, API keys, and private credentials should stay out of your repository. Use environment variables and .gitignore to keep them safe.

Use .gitignore. Exclude build output, log files, local configuration, and any files that should not be part of the shared codebase.

Use pull requests for code review. Even in small teams, having someone else review changes before merging them catches errors and improves quality.

Respond to issues and pull request reviews promptly. Active engagement keeps projects moving and builds good working relationships with collaborators.

Keep repositories organized. Clear folder structures and consistent naming conventions make repositories easier to navigate.

Use GitHub Issues to track work. Issues give you and your team visibility into what needs to be done, what is in progress, and what has been resolved.

What Is a README File on GitHub?

A README.md file is a Markdown-formatted document that appears on the front page of a GitHub repository. It is the first thing most visitors read when they discover your project, so its content matters.

A well-written README typically includes:

• The project name and a concise description of what it does
• Installation instructions so others can get the project running
• Usage examples showing how to use the project
• Contribution guidelines explaining how others can help
• License information describing how the code may be used
• Contact or support information

README.md files use Markdown formatting, a lightweight syntax that lets you add headings, bullet points, links, code blocks, and images using plain text. If you are new to Markdown, it is quick to learn and widely used across many platforms and documentation tools.

How to Learn GitHub

Learning GitHub is a gradual process, and the best approach is to combine reading with hands-on practice. Here is a practical roadmap:

1. Understand what Git is and how version control works. The TechOriginHub guide on Git for beginners is a good starting point.
2. Create your first GitHub account.
3. Create a simple repository and explore its features.
4. Clone the repository to your local machine and make your first local change.
5. Practice committing and pushing changes.
6. Create and switch between branches.
7. Open your first pull request, even if it is just on your own repository.
8. Explore GitHub Issues by creating and closing a few on a personal project.
9. Find a beginner-friendly open-source project and contribute. GitHub labels many issues as “good first issue” specifically for newer contributors.
10. Explore GitHub Actions by setting up a simple automated workflow.
11. Learn about GitHub’s security features, particularly around protecting sensitive data.
12. Build the habit of working with GitHub on every personal project you create.

As your programming skills grow, exploring topics like APIs, cloud computing, and software architecture will all connect naturally with the version control and collaboration workflows you learn through GitHub. Developers working with languages like Python and JavaScript will find GitHub an essential tool for managing and sharing their projects.

GitHub Skills at skills.github.com also offers free interactive courses specifically designed to help beginners learn GitHub through hands-on exercises directly within the platform.

Frequently Asked Questions

What is GitHub in simple words?

GitHub is an online platform where developers store their code, track changes using Git, and collaborate with others. It provides a web interface and collaboration tools on top of the Git version control system.

What is GitHub used for?

GitHub is used for hosting code repositories, collaborating on software projects, reviewing and merging code changes, tracking bugs and tasks through Issues, hosting static websites with GitHub Pages, and contributing to open-source software.

Is GitHub the same as Git?

No. Git is a version control system that runs locally on your computer. GitHub is an online platform that hosts Git repositories and adds collaboration tools. You can use Git without GitHub, but GitHub requires Git to function.

Is GitHub free?

Yes, GitHub offers a free plan that includes unlimited public and private repositories along with core features. Paid plans provide additional features and higher usage limits. GitHub Copilot is a separate product with its own pricing. Check github.com/pricing for current details.

What is a GitHub repository?

A GitHub repository is an online storage location for a project’s files, history, branches, issues, and pull requests. Repositories can be public, visible to anyone, or private, visible only to invited collaborators.

What is a pull request on GitHub?

A pull request is a GitHub feature that allows a developer to propose merging changes from one branch into another. It creates a structured review process where team members can examine, comment on, and approve changes before they are merged.

What is forking on GitHub?

Forking creates a copy of someone else’s GitHub repository under your own GitHub account. It allows you to make changes independently and, if you want, submit those changes back to the original project through a pull request.

What is GitHub Actions?

GitHub Actions is a CI/CD platform built into GitHub that allows developers to automate workflows. Common uses include automatically running tests when code is pushed and deploying applications when changes are merged.

What is GitHub Pages?

GitHub Pages is a GitHub feature that lets you host static websites directly from a repository. It is commonly used for personal portfolios, project documentation, and open-source project websites.

Who owns GitHub?

GitHub is owned by Microsoft, which acquired it in 2018.

Can I use GitHub without knowing Git?

You can create a GitHub account and explore repositories without deep Git knowledge, but to use GitHub effectively for development, understanding at least basic Git concepts is important. GitHub Desktop provides a graphical interface that makes some operations more accessible, but Git fundamentals remain valuable.

Is GitHub only for programmers?

GitHub is primarily designed for software development, but it can also be used by writers, designers, data analysts, and others who benefit from version control and collaboration tools. Its core audience remains software developers, but its potential use extends beyond code.

References

1. GitHub Official Documentation. GitHub Docs. docs.github.com. The primary authoritative source for all GitHub features, workflows, and technical details. https://docs.github.com
2. Git Official Documentation. Git Reference Manual. git-scm.com. https://git-scm.com/doc
3. GitHub Skills. Learn GitHub by doing. skills.github.com. Interactive courses for learning GitHub through hands-on exercises. https://skills.github.com
4. Microsoft Learn. Introduction to GitHub. Microsoft’s learning platform covering GitHub fundamentals. https://learn.microsoft.com/en-us/training/github/
5. GitHub Documentation. About GitHub Pages. Official documentation for the GitHub Pages static site hosting feature. https://docs.github.com/en/pages
6. GitHub Documentation. Understanding GitHub Actions. Official documentation explaining GitHub Actions CI/CD workflows. https://docs.github.com/en/actions
7. GitHub Documentation. About pull requests. Explains what pull requests are and how they work. https://docs.github.com/en/pull-requests
8. GitHub Documentation. Ignoring files (.gitignore). Guidance on creating and using .gitignore files. https://docs.github.com/en/get-started/getting-started-with-git/ignoring-files
9. CISA. Defending Against Software Supply Chain Attacks. Relevant guidance for understanding security practices in code repositories and software development pipelines. https://www.cisa.gov/resources-tools/resources/defending-against-software-supply-chain-attacks
10. GitHub Pricing. GitHub Plans. Official page for current GitHub plan and pricing details. https://github.com/pricing

This article is for educational and informational purposes. GitHub features, pricing, plans, and workflows can change over time. Always consult the current official GitHub documentation at docs.github.com before making decisions based on GitHub features or capabilities.

Author: TechOriginHub Editorial Team
Author Bio: TechOriginHub Editorial Team covers practical technology, programming, software, cybersecurity, cloud computing, databases, and internet topics with a focus on clear and useful guidance.