How to Use AI Tools to Write Your First 100 Lines of Code in a Day

If you’re a beginner looking to write your first lines of code, you might feel overwhelmed by the sheer volume of information out there. The idea of coding can seem daunting, but with the right AI tools, you can actually write your first 100 lines of code in just one day. In 2026, AI coding assistants have come a long way, making programming more accessible than ever before. Let’s dive into the tools that can help you achieve this goal, along with their pricing, limitations, and our honest take.

Prerequisites: What You Need Before You Start

Before you dive into coding, here’s what you’ll need:

• A computer: Windows, macOS, or Linux will work.
• An internet connection: Most AI tools are cloud-based.
• Basic understanding of programming concepts: Familiarize yourself with variables, loops, and functions.
• An IDE (Integrated Development Environment): Options like Visual Studio Code (free) or PyCharm (Community edition is free) will help you write and run your code.

Time Estimate: You Can Finish This in 6-8 Hours

If you allocate a full day, you can realistically write your first 100 lines of code. The key is to break down the process into manageable steps and leverage AI tools effectively.

Top AI Coding Tools for Beginners

Here’s a list of 12 AI coding tools that can help you write code efficiently, along with a comparison table to help you decide which one fits your needs.

| Tool Name | Pricing | What It Does | Best For | Limitations | Our Take | |--------------------|---------------------------|-----------------------------------------------------|------------------------------|-----------------------------------------------------|----------------------------| | GitHub Copilot | $10/mo, free for students | Suggests code snippets as you type | Beginners learning syntax | Limited to supported languages | We use this for quick suggestions. | | OpenAI Codex | $20/mo | Generates code from natural language prompts | Learning new languages | Can produce incorrect or insecure code | We don't use it for production yet. | | Replit | Free tier + $7/mo pro | Online IDE with collaborative coding features | Pair programming and feedback| Performance can lag with larger projects | Great for real-time collaboration. | | Tabnine | Free tier + $12/mo pro | AI-powered autocompletion for multiple languages | Fast-paced coding | Limited to code completion and lacks context | We use it for faster coding. | | Codeium | Free tier + $19/mo pro | Code suggestions and completions based on context | Writing complex functions | Limited support for less common languages | We find it helpful for Python. | | DeepCode | Free tier + $25/mo pro | Code review and suggestions for best practices | Improving code quality | Focuses more on existing code rather than writing new | Skip if you just want to write. | | Ponicode | $10/mo | Helps write unit tests automatically | Testing new code | Limited to testing and doesn’t generate application code | We avoid it for our first lines. | | Sourcery | Free tier + $12/mo pro | Real-time code improvement suggestions | Refactoring code | Works best with Python; not as effective for others | We use it for optimizing our code. | | Jupyter Notebook | Free | Interactive coding environment for Python | Data science projects | Not ideal for general-purpose coding | Great for data analysis tasks. | | CodeSandbox | Free tier + $15/mo pro | Online IDE for web development | Web projects | Limited support for backend languages | We use it for front-end experiments. | | Glitch | Free tier + $8/mo pro | Collaborative web app builder | Rapid prototyping | Limited to web projects | We use it for quick MVPs. | | ChatGPT (API) | $0-100 based on usage | Generates code snippets from conversation | Learning and prototyping | Can misunderstand context and produce errors | We use it for brainstorming ideas. |

Step-by-Step: Writing Your First 100 Lines of Code

1. Choose Your Language: Start with a beginner-friendly language like Python or JavaScript.
2. Set Up Your Environment: Install your chosen IDE and any necessary tools (like Git).
3. Use AI Tools for Guidance: As you write, utilize tools like GitHub Copilot or Tabnine to suggest code snippets.
4. Write Simple Functions: Create small functions that perform basic tasks. For example, a function to add two numbers or display a greeting.
5. Iterate and Expand: Use AI tools to help you expand your functions or suggest new ones based on what you’ve already written.
6. Test Your Code: Run your code in your IDE. Use tools like Replit for quick testing.
7. Review and Refactor: Use Sourcery or DeepCode to analyze your code and improve its quality.

Troubleshooting: What Could Go Wrong

• Syntax Errors: Make sure to pay attention to error messages in your IDE. They often tell you exactly what’s wrong.
• Logic Errors: If your code runs but doesn’t produce the expected output, double-check your logic.
• Tool Limitations: If an AI tool isn’t suggesting useful code, try rephrasing your request or using a different tool.

What's Next: Building on Your First Lines

Once you’ve written your first 100 lines of code, consider the following next steps:

• Build a small project using the code you’ve written.
• Collaborate with others using platforms like Replit or GitHub.
• Explore more advanced AI tools for code generation and optimization.

Conclusion: Start Here

If you want to write your first 100 lines of code in a day, start with GitHub Copilot and Tabnine. They provide practical assistance without overwhelming you. Combine these tools with an IDE like Visual Studio Code, and you’ll be coding in no time. Remember, the key is to take it step by step, use the tools effectively, and don’t hesitate to seek help when you need it.