The software development world is undergoing a fundamental transformation with AI. You no longer have to write all the code yourself: AI assistants complete code, find bugs, write tests and can even build applications from scratch. In this post, we take a detailed look at the best AI coding tools for developers.
What Can AI Coding Tools Do?
AI coding assistants help in these areas:
- Code completion: Automatically completing the code you've started writing
- Code generation: Writing the function you describe in natural language
- Debugging: Finding and fixing bugs in your code
- Refactoring: Improving and cleaning up existing code
- Documentation: Writing explanations and documentation for your code
- Writing tests: Generating unit tests for your code
- Full applications: Building working applications from scratch
AI-Powered Code Editors
1. Cursor — The Most Comprehensive AI IDE
Cursor is a VS Code-based editor, but its AI capabilities are far more advanced. You can chat with your code, make changes across files and carry out complex refactoring with a single command.
Key features:
- Cmd+K: Edit selected code in natural language ("make this function async")
- Cmd+L: Ask questions about code ("what does this function do?")
- Composer: Make changes across multiple files at once
- Codebase indexing: Contextual suggestions based on an understanding of your whole project
- Smart code completion with Tab
Supported languages: All popular languages (TypeScript, Python, Rust, Go, Java, C++, etc.)
Price: Free plan (limited AI usage), Pro $20/month.
Ideal for: Developers at every level, especially those working on large projects.
2. GitHub Copilot — The Industry Standard
GitHub Copilot is an AI code assistant developed through a collaboration between GitHub and OpenAI. It works with VS Code, JetBrains IDEs and Neovim.
Key features:
- Line-by-line and block-by-block code completion
- Generating code from comments
- Chatting about your code with Copilot Chat
- Generating pull request descriptions
- Code review suggestions
Price: $10/month (individual), free for students.
Ideal for: Developers who already use VS Code or JetBrains, students.
3. Windsurf — Codeium's AI IDE
Windsurf is an AI-powered IDE developed by Codeium. It's VS Code-based and positioned as a rival to Cursor.
Key features:
- Cascade: Multi-file editing and autonomous coding
- Supercomplete: Predicting the next logical step
- A more generous free plan than Cursor's
Price: Free plan available, Pro $15/month.
4. Replit — AI Coding in the Browser
Replit is a development environment that runs in the browser. You can write code by chatting with its AI assistant, fix bugs and deploy your project. It requires no setup at all.
Price: Free plan available, Core $25/month.
Ideal for: Beginners, people building quick prototypes, and those who don't want to fuss with setup.