12 Best Free AI Tools for Coding in Any Language

12 Best AI Coding Tools Every Developer Must Use

1. Complete Code Faster with Tabnine

Tabnine coding assistant can do more than just code generation using AI. It can write code faster than you and even predict the next lines in your codebase. The tool is very helpful for those who want to save time on coding or beginners in open-source software development. It’s one of the best AI tools for coding available.

Well, tab nine can do many more things like:

• Generating code using prompts.
• Autofiling classes and variables.
• Recommending bug fixes on your custom code.
• Working with your favorite IDEs such as VS code, IntelliJ, AppCode, Android Studio, RubyMine, etc.
• Creating documents for classes, API guides, and more to make things easier for others.
• Writing tests or suggesting test cases for your project.

These tasks take a lot of your time. With tab nine, they are just a minute of work. If you are worried about the security of the code, don’t worry. This AI tool for coding is SOC-2 compliant and keeps the code secure within your existing environment.

Price: The starter plan is free but if you want to explore more features of Tabnine, pay $12/month.

2. Make Your Code Secure with Snyk

If finding issues and vulnerabilities is your only responsibility in the software development process, Snyk is the best free AI tool for coding. It uses machine learning and different analysis techniques to find what’s wrong with the code.  

Not just human-written code, Snyk can find issues in AI-written code too. The tool scans code in seconds and gives suggestions to fix those errors as well. Even Gemini Code Assist, Google Cloud’s AI-powered assistant for developers, uses Snyk to generate secure code.

Price: It offers a free plan for individual developers and $25/month for the development teams. Whereas businesses can get the enterprise model at a custom rate.

3. Code with Confidence with Q Developer

Previously known as CodeWhisperer, Q Developer is one of the best AI-powered productivity tools for coding by Amazon. The tool is an upgraded version with broad capabilities to help developers explore a wide set of use cases. Here is what Amazon Q Developer can do:

• Gives real-time suggestions for code completion, debugging, test writing, and more.  
• Understands your code in natural language.
• Transforms your code in the latest language.
• Highlights codes resembling publicly available code.
• Scans code to find issues and bugs.
• Automatically updates the code wherever necessary.

Price: Amazon’s AI coding assistant is free with some limitations like users cannot fine-tune the code, custom libraries, and APIs. The free version also allows five agent tasks and 25 queries monthly.

If you want to explore more capabilities of Q developer, get the premium version at $19/month.

Also Read: What is Function Calling in OpenAI’s Language Models? 

4. A Complete Toolkit for Developers – Codeium

Codeium is one of the best and free AI tools for coding for developers who don’t want to switch to a new platform for coding suggestions. Add a free extension in Chrome browser or try in your favorite code editors, Codeium works the way you want.

It supports 40+ IDEs such as Visual Code, IntelliJ, Visual Studio, Deepnote, and Xcode. You can write code in Python, TypeScript, Javascript, HTML, CSS, Ruby, Java, React Native, and C++, using Codeium. It supports more than 70 programming languages.  

Wondering about its features?

• Autocompletes code for faster code writing.
• Assists in code generation, refractor code, code explanation, suggestions, bug fixing, and more.
• Searches code within a large codebase as per your intent.
• Helps in unit testing and data science-related tasks.
• Builds math libraries.
• Provides regex solutions. 

Price: Free for individual users and $12 per month for teams. It also has an enterprise version with advanced features which is available at a custom price.  

5. Check Code Quality with Codiga

Error-free code is a must to develop high-quality software products. However, checking errors and issues in real time is tricky. Codiga is a worthy AI coding assistant who can do this trickiest job without interfering with your code.

It tests your code quality and shows all the errors in report format. Codiga can analyze and review code written in any programming language such as PHP, C++, Java, Python, and more.    

Price: Zero fees for individual developers and the paid version starts at $14 per month.

6. The Best Development Buddy: CodeGeeX

CodeGeeX is the best sidekick if you struggle to write code in multiple languages. This AI assistant increases your code writing speed by suggesting the next code. And the best part is that the tools can understand almost every programming language you would use for mobile or web app development. Python, Java, Go, C++, and JavaScript are a few examples of languages it can work with. You can even communicate with the tool in English and Chinese. 

Features:

• Auto-completion for code snippets
• Bug detection and error fixing
• Code translation across languages
• Context-aware suggestions
• Supports multiple programming languages

Price Plans: Pay zero money to use CodeGeeX.

7. Write Correct Codes Every Time with Amazon CodeWhisperer

It surely is! Amazon’s coding marvel is the best AI assistant. It works on machine learning and, thus, suggests code in real-time. Like a real tech genius, the tool also gives alerts whenever you write an incorrect line of code. So, your code will always work. Besides that, Amazon CodeWhisperer suggests the next action you should take. For example, if you are developing an application to create an Amazon DynamoDB Table and Amazon S3 buckets, the tool will suggest the best libraries.

Using its knowledge of AWS APIs and SDKs, CodeWhisperer suggests the correct code format to open sessions between Amazon DynamoDB, Amazon S3, and users. Working with this AI coding tool makes it feel like you already know about the next step.

Features:

• Real-time code suggestions and completions
• Supports languages like Python, Java, and JavaScript
• Integration with popular IDEs
• AI models optimized for cloud-based applications

Price Plans: Amazon CodeWhisperer is free for the individual tier and works within JetBrains, JupyterLab, and VS Code. Only 50 scans per month are allowed in the free plan, where you must also agree to share code fragment data and telemetry data with AWS. 

The professional tier allows for 500 scans per month with no mandatory requirement for data sharing. However, sharing telemetry data is the default, which you can change anytime from IDE settings. 

Also Read: 5 Free Tools for Data Visualization You Must Use in 2024

8. Type Less, Code More with IntelliCode

Visual Code’s IntelliCode brings AI power to your development flow. Just start writing code, and the tool will finish it automatically. It can even detect the context of your code, like what variable should be used, ensuring it generates the right output every time. IntelliCode can also catch repetitions in your code and help you edit them. 

What we love about IntelliCode is the privacy. Since your code always remains on your machine, data is never lost. Want to try? Get this best AI tool for coding in Visual Code 2022. 

Features:

• Smart code completions based on context
• Refactoring tools for code optimization
• Real-time debugging support
• Unit testing assistance

Price: IntelliCode is free for all, whether you are new to coding or a senior mobile app developer. 

9. Write Code in Natural Language with AIXCoder

Yes! AIXCoder can understand your natural language. Give the prompt, and it will write code for you. Just click the tab or right button of the mouse, and AIXCoder will complete the next line of code. Unlike other free AI tools for coding, AIXCoder can write multiple lines of code at once. 

You can even search open-source code from GitHub without leaving the development environment. Coming to the source place of development, AIXCoder gives you two options: Local and Cloud. 

The local one keeps your code private and works even in offline mode, whereas the Cloud keeps you one step ahead with multi-level and line-level code generation. With AIXCoder, your code is completely under your control. 

Features:

• Support C, C#, C++, Java, Python, Go, TypeScript, JavaScript
• Compatible with Visual Code, PyCharm, Eclipse, CLion, GoLand, and other popular IDEs
• Version control and syntax highlighting
• Code formatting, navigation, and snippets
• Customization settings and plugin support

Price: A free version is available, and the enterprise edition comes at customized pricing.

Also Read: 9 Web Application Testing Tools for All Your Testing Needs

10. Code Smartly, Swiftly, & Confidently with Qodo AI

Qodo is not new but a modified version of Codium (don’t be confused with Codeium that we mentioned above). It is a free AI code generator designed to simplify code generation and maintain code integrity. 

Qodo works in five steps: task planning, writing code, testing code, generating PR, and reviewing PR. Qodo automates everything you have been doing manually through its different AI tools: Qodo Gen, Qodo Merge, Qodo Cover, Alpha Codium, and Qodo API.

Qodo has its framework for suggesting codes. Instead of directly suggesting code, it gives the code a score and suggests what you need to correct. It supports Python, Java, Go, PHP, and many more. 

Features:

• Code analysis
• Code insights
• Real-time code suggestions
• Test and docstrings generation

Price: Qodo’s products are open-source for individual developers. To start using Qodo, download its VS code extension or install the JetBrains plugin. 

You can already do that! To get meaningful tests, download our free VSCode extension and/or JetBrains plugin. Qodo is free for individual developers; we even publish some of our products as open-source.

11. A Complete Platform for Software Development: Mutable.ai

Mutable.ai has every tool you need to develop software. This AI platform writes code, automatically updates it, edits it, and can even test the code. Surprised by its capabilities? Well, Mutable.ai is fed on millions of open-source codes.

It also has a codebase chat that understands and responds in our language. And the semantic search feature lets you explore and understand the code easily.

Code generation is one of many areas where you can use mutable.ai. Its specialized AI helps you automatically generate unit test cases. No matter how complex the code is, mutable.ai can test it in minutes. 

Features:

• Code suggestion and detection 
• Code complexity analysis
• Test coverage gaps
• Auto-generation of code summary

Price: Free for individual developers and paid plans for enterprises. 

12. Your Personal AI Coding Assistant: AskCodi

Working with AskCodi is like working with a real coding assistant. It is smart, fast, and super fun. Even if you have zero experience in software development, AskCodi will make you a pro. This free AI coding generator has over 10 tools, from a code generator, code refractor, error explainer, and bug detector to a CI/CD pipeline writer. 

Imagine how quickly you can build software without getting deep into coding. AskCodi also gives you a clean space to organize your work and communicate with the team. You do not even have to set up AskCodi; simply install it, and that’s it. 

What AskCodi can do for you?

• Shows code changes in real-time
• Supports React, Svelte, Vue, and any other framework you are familiar with
• Makes your code bug-free
• Writes software documents 5x faster
• Understand your code and project structure
• Integrates with JetBrains, VS Code, and Sublime Text IDE

Price: AskCodi is free only for 7 days. 

Bonus Tool: GitHub Copilot

According to the Stack Overflow 2023 Survey, more than 50% of developers prefer this AI tool for writing code and boosting their productivity. One in 3 Fortune 500 companies rely on it and more than 50,000 businesses have already adopted it.

What does it do?

• Automates boilerplate code.
• Writes codes through natural language prompts.
• Gives suggestions for code completion, tests, and more.
• Keeps track of your work and provides project updates.
• Fine-tune the custom models (coming soon.)

Github Copilot works well with VS Code, Neovim, Visual Studio, and JetBrains IDEs. It supports popular languages for mobile app development such as Python, Javascript, Swift, and C++. That’s not it! A mobile version of this AI coding tool is going to launch soon for both Android and iOS users.

Price: USD 10 per year for freelancers and individual developers. The business version is USD 19 per month whereas the enterprise version is available at USD 39 per month.

Conclusion

Whether you are a beginner or experienced, these AI tools for coding are your great assistants. They speed up the software development without compromising the quality and security of code. But before trying any of them, make sure they support the IDE and programming language you prefer. Also, check the security policy to ensure they generate original codes and do not duplicate the publicly available code.