2 Free GitHub Copilot Alternatives for VS Code in 2024 (Tab9 vs Codium)

As a developer, student, or small business owner in India, you know the value of efficiency when writing code. AI code assistants have become incredibly popular for speeding up development, but the most well-known tool, GitHub Copilot, comes with a subscription fee. If you're looking to enhance your coding workflow without adding to your expenses, you'll be pleased to know there are powerful free GitHub Copilot alternatives available. This article will guide you through two excellent options: Tab9 and Codium, both designed to integrate seamlessly with VS Code.

Introduction: Why Look for a Copilot Alternative?

AI code assistants have transformed how developers approach coding, offering suggestions, completing lines, and even generating entire functions based on context. GitHub Copilot, while highly effective, operates on a paid model. Many developers, especially those managing budgets or just starting, seek equally capable tools that don't require a subscription. This demand has led to the emergence of several robust free GitHub Copilot alternatives that provide similar benefits without the cost barrier. These tools can significantly boost productivity, help reduce errors, and allow you to focus more on problem-solving rather than syntax.

Meet the Contenders: Tab9 and Codium

In the evolving landscape of AI-powered development tools, two names stand out as excellent free options for VS Code users: Tab9 and Codium. These tools offer intelligent code completion and assistance, making them strong contenders against paid solutions like GitHub Copilot.

• Tab9: This AI code completion tool learns from your code and provides context-aware suggestions. It aims to make you a faster, more efficient coder by anticipating what you'll type next. The core promise of Tab9 is to offer intelligent, personalized code suggestions that adapt to your coding style and project.
• Codium: While Tab9 focuses on completion, Codium takes a different approach by helping developers understand and test their code. It generates meaningful tests for your functions, ensuring reliability and helping you catch bugs early. Codium's core promise is to enhance code quality and maintainability through automated test generation.

Both Tab9 and Codium are presented as absolutely free tools, making them highly attractive for anyone seeking AI assistance without the financial commitment of a paid subscription.

How to Install and Set Up Tab9 in VS Code (Step-by-Step)

Getting Tab9 up and running in your Visual Studio Code environment is a straightforward process. Follow these steps to integrate this powerful AI code assistant into your daily workflow:

1. Open VS Code: Launch your Visual Studio Code application.
2. Access the Extensions View: On the left sidebar of VS Code, you'll find a series of icons. Click on the 'Extensions' icon, which looks like four squares, with one detached. Alternatively, you can press Ctrl+Shift+X (Windows/Linux) or Cmd+Shift+X (macOS) to open the Extensions marketplace.
3. Search for Tab9: In the search bar at the top of the Extensions view, type "Tab9". You will see "Tabnine AI Code Completion" appear in the search results.
4. Install the Extension: Click on the "Tabnine AI Code Completion" entry. This will open the extension's detail page. On this page, you'll see a prominent "Install" button. Click it to begin the installation process. The tool is absolutely free to install and use.
5. Verify Installation: Once installed, Tab9 will typically activate automatically. You might see a small Tab9 icon in your VS Code status bar (usually at the bottom) indicating it's active.
6. Start Coding: Open any code file in a supported language (e.g., Python, JavaScript, Java). As you type, Tab9 will begin to provide context-aware code suggestions. These suggestions will appear as you type, and you can accept them by pressing Tab or Enter, depending on your VS Code settings.
7. Configure (Optional): Tab9 offers some configuration options, which you can access through the VS Code settings (File > Preferences > Settings or Code > Preferences > Settings on macOS) by searching for "Tab9". Here, you can adjust settings like suggestion frequency or ignored files, though the default settings are usually sufficient for most users.

With Tab9 installed, you're ready to experience enhanced code completion and boost your productivity. For developers working with modern frameworks, combining AI assistance with a solid understanding of tools like Next.js can significantly streamline projects. Learn more about integrating different technologies by checking out our guide on how to connect Sanity CMS with Next.js 14.

Head-to-Head: Tab9 vs. Codium

When comparing Tab9 and Codium as VS Code AI assistant free options, it's important to consider their primary functions, ease of use, and specific benefits. While both offer AI assistance, their approaches differ significantly.

Comparison Table: Tab9 vs. Codium

Feature	Tab9	Codium
Primary Function	AI-powered code completion and suggestion.	AI-powered test generation and code explanation.
Ease of Setup	Very easy. Install from VS Code Extensions marketplace.	Easy. Install from VS Code Extensions marketplace. Requires some initial project analysis.
Quality of Suggestions/Output	Context-aware, personalized code line and block suggestions. Learns from your codebase.	Generates unit tests for functions, explains code, helps identify edge cases.
Language Support	Broad support for popular languages (Python, JavaScript, TypeScript, Java, C++, Go, Rust, PHP, Ruby, etc.).	Good support for popular languages (Python, JavaScript, TypeScript, Java, C#, Go, Ruby, PHP).
Unique Features	Deep learning models, personalized suggestions, supports local and cloud models.	Automated test generation, code explanation, identifying code gaps for better testing.
Focus	Speeding up coding, reducing typos, completing boilerplate.	Improving code quality, ensuring reliability, understanding existing code.

Discussion: Tab9 vs. Codium

Tab9 excels at being a proactive coding partner, suggesting code as you type. Its strength lies in its ability to predict your next move, offering snippets and full lines of code that fit your project's context. This makes it ideal for increasing typing speed and reducing repetitive coding tasks. If your main goal is faster code writing and fewer syntax errors, Tab9 is a strong choice.

Codium, on the other hand, is more focused on code quality and understanding. Instead of just completing your code, it helps you validate it by generating tests. This is invaluable for maintaining robust applications, especially in team environments or for critical projects. If you're concerned with code reliability, test coverage, and understanding complex functions, Codium offers a unique and powerful form of AI assistance. Enhancing your development workflow with tools like these can be as impactful as mastering animation libraries for your front-end projects, such as using Framer Motion with Tailwind CSS in Next.js.

Our Verdict: Which Free AI Assistant is Right for You?

Choosing between Tab9 and Codium as your preferred free AI assistant for VS Code depends largely on your primary development needs and priorities. Both offer significant value as free GitHub Copilot alternatives, but they cater to different aspects of the development process.

• For Speed and Efficiency (Tab9): If your main objective is to write code faster, reduce boilerplate, and get intelligent inline suggestions as you type, Tab9 is likely the better fit. It's an excellent choice for solo developers, students, or anyone who wants a direct boost to their coding speed and accuracy.
• For Code Quality and Reliability (Codium): If your focus is on ensuring your code is robust, well-tested, and easy to maintain, Codium offers a unique advantage. It's particularly beneficial for professionals working on critical applications, in team environments, or for those who want to deepen their understanding of existing codebases through automated test generation.

Ultimately, you don't have to choose just one. Both extensions can coexist in your VS Code setup, though their functionalities are distinct enough that they won't directly conflict. You might find value in using Tab9 for day-to-day coding speed and Codium for specific tasks like generating tests for new functions or refactoring existing code. Experiment with both to see which one integrates best with your personal workflow. Mastering the use of such AI tools is a skill increasingly covered in modern development education, much like the topics explored in Juno School's Master AI for Building Software course.