Best Free AI Coding Assistants You Can Use Right Now

We are currently living in an AI era. In today’s world, nobody, literally nobody writes tons of boilerplate code on their own for starting their project. In this era, if you are still programming in the old way, without any of the modern high quality AI help in your daily development works, honestly, you are left behind!

The world is evolving and lot of free AI tools are emerging that can provide you unimaginable efficiency and speed up your software development process. Don’t be fooled! While paid AI tools are great and some of Best AI tools have costly subscription plans, the tools that I am going to discuss, are nothing less of a boost of power in coding! Yes, most of them have both paid and free tiers and the free tiers are equally promising.

So get ready to transform your dev workflow forever with these FREE AI Coding tools and turbocharge your productivity to a whole new level. What are you waiting for? Let’s dive into it!

The Best AI Code Assistants You Won’t Wanna Miss

1) Supermaven: “The fastest copilot”:

Not everybody has heard about this AI code Assistant, but those who know don’t switch to other AI tools. Supermaven is not any ordinary AI code tool.

Supermaven was founded by Jacob Jackson, who previously created Tabnine, the first product to use AI for code completion.

Great developers deserve great tools. And, that’s why as a Great Developer, Supermaven must be your 1st choice when leveraging the best AI Code Assistant.

Why? What makes Supermaven so good?

Supermaven is the fastest inline code suggestion assistant, with a powerful model that most people prefer to GitHub Copilot because of its speed. Unlike other assistants, it sees the diff between your code and the most recent commit, which helps it understand what you're trying to accomplish.

The Supermaven Free Tier allows you to try Supermaven for free!

In the paid tier they provide 1 million Token context window. But don’t worry, even though the Free Tier doesn't include their unique 1 million token context window, but it can still see all your recently opened files, giving it the information it needs to be useful to you.

So, you’re a web developer? You love TypeScript? Supermaven is here to help you.

Supermaven was trained on repos like TypeScript, DefinitelyTyped, and LlamaIndexTS so you can get the best suggestions for your TypeScript code.

Didn’t get satisfied? Oh so you actually work with lower level languages? A devotee of the cult trinity (C, C++ and Assembly)? Don’t worry! Supermaven has you covered! And if you think no AI is capable yet to perform good at low level languages like assembly and C then let me prove you wrong!

Supermaven was trained on repos like TensorFlow, OpenCV, nlohmann/json, and Frozen so you can get the best suggestions for C++. Code C++ with the speed of light just like shown in the demo video -

Also it is trained on repos like HelloSilicon, arpilisp, Apollo-11, and MS-DOS so you can get the best Assembly code suggestions.

This is just scratching the surface, when you will try it will see in your own eyes the convenience and power of this AI assistant.

This best thing about supermaven that truly sets it apart is - 1. less resource overhead(very lightweight), 2. faster than faster, 3. Easy Code Editor integration, 4. Huge enough Context Window, 5. Intelligent inline code suggestion.

If you don’t want to migrate to a whole new AI first Code Editor (like cursor, which we will discuss about next), Supermaven seemingly is the right choice for you. Get AI Code Assistance right within your favourite IDE.

Supermaven also provides a powerful Chat mode, that is only accessible in VS Code and JetBrains IDEs (NOT in Neovim).

Supermaven provides integration with the widest adopted and the most popular Code Editors(VS Code, Neovim and the JetBrains Family) within no Complex Setup or Configuration.

Neovim setup lua code for Supermaven using Lazy.nvim as plugin manager -

 local spec = {
  "supermaven-inc/supermaven-nvim",
  config = function()
    require("supermaven-nvim").setup({
      keymaps = {
        accept_suggestion = "<Tab>",
        clear_suggestion = "<C-x>",
        accept_word = "<C-j>",
      },
    })
    vim.api.nvim_set_hl(0, "CmpItemKindSupermaven", {fg ="#6CC644"})
  end
}

return spec

So, Go Ahead and try it out now! Link Below -

2) Cursor AI - The AI First Code Editor

Cursor AI is a smart code editor that's turning heads. It's not just another text editor - it's a coding assistant that helps you work faster and smarter.

As the website says, Cursor is explicitly built as an "AI-first" code editor. It is built on top of VS Code and has tight and built-in AI integration that is a masterpiece of Human Innovation in Software Development.

Based on what "AI-First" Design Philosophy says - The AI in Cursor is not just an add-on; it's deeply integrated into the core of the editor. Features like intelligent code completion, codebase chat, and AI-powered editing are central to its design and workflow. It's built from the ground up with AI as a primary partner.

Key Benefits of Cursor:

• Uses multiple AI models to understand and generate code.

• Get answers from your codebase or refer to files or docs. Use the model’s code in one click.

• Offers AI code completion, error correction, and natural language commands.

• Cursor can suggest multiple edits at once, saving you time.

• Cursor predicts your next cursor position so you can seamlessly navigate your code.

• You can reference popular libraries using @LibraryName, or add your own using @Docs → Add new doc.

• Get up-to-date information from the internet with @Web. Cursor will search the web for you and use the latest information to answer your question.

While JetBrains IDEs and VS Code offer powerful AI integrations (JetBrains AI Assistant, GitHub Copilot, Codeium, etc.), these are typically implemented as extensions or plugins. This can sometimes lead to a less seamless and more compartmentalized experience compared to Cursor's native integration. The core functionality of these editors remains centered around traditional code editing paradigms.

Most importantly, Cursor offers an "Agent" mode that can autonomously complete tasks end-to-end, including generating code across multiple files and even running terminal commands (with user confirmation). This level of proactive automation is what truly sets it apart from other code Editors or AI coding Assistants.

It is exciting to know that - Initially, Supermaven worked to build their own editor, but they were also in touch with the Cursor team, and as they came to know them better the Supermaven team felt they could build a much more useful product together than Supermaven could build alone. That's why Supermaven joined Cursor. And, surprize! Cursors AI completion is also powered by Supermaven! How cool!

Cursor also has a powerful MCP plugin system that allows you to connect Cursor to external systems and data sources. The Model Context Protocol (MCP) is an open protocol that standardizes how applications provide context and tools to LLMs.

MCP servers can be written in any language that can print to stdout or serve an HTTP endpoint. MCP servers are lightweight programs that expose specific capabilities through the standardized protocol. They act as intermediaries between AI Agents(Cursor in our case) and external tools or data sources.

Configuring MCP servers in Cursor is also fairly straightforward. Look at the code snippet below -

// This example demonstrated an MCP server using the stdio format
// Cursor automatically runs this process for you
// This uses a Python server, ran with `python`
{
  "mcpServers": {
    "server-name": {
      "command": "python",
      "args": ["mcp-server.py"],
      "env": {
        "API_KEY": "value"
      }
    }
  }
}

I know this can be a lot to take in. So why not explore Cursor on your own? There is a lot to explore and experience!

Check out the link below, and go ahead and try it out!

3) Sider AI - The Best AI Browser Extension

• All-in-one AI Chatbot:

  Sider integrates iconic AI models into a single chatbot, like o4-mini, o3, GPT-4.1 mini, GPT-4.1, DeepSeek, Gemini and Claude. Get ready to explore the distinct capabilities of these different AIs!

• 

  Sider fully supports group chats with AI bots, allowing you to compare the variances among various bots.

• AlMighty AI Reader:

  Sider offers content reading for documents, website pages, PDFs and videos. Choose features from translation, summarization, quiz, rewriting. Thus you are broken free from mundane reading of huge chunks of information. Just provide the docs or relevant info to Sider and get crisp info to quickly understand any hard or big Coding or Architectural topic and quickly jump back to Coding.

• It is an One Stop AI Assistant that is not only a Coding Assistant but a TRUE ALL ROUNDER. From Coding to Summarizing, translating, Job hunting, generating image, & many more tasks you didn’t ask for but deserve.

• In the free tier it provides, 30 daily credits, which is enough for many individuals.

• Truly Omnipresent:

  

  Sider is not limited to the browser, it is universal.

  

The best thing about Sider is that - 1. you get access to all the popular and powerful LLMs right within one place. How Cool is that!

There’s more to it! 2. Sider has a Fantastic AI feature, “Artifacts“ from version v4.19.0. Key features include -

• Create specialized outputs like documents, diagrams, and websites.

• View and edit Artifacts in a separate window alongside your chat.

• Generate Artifacts with simple voice commands.

• Modify your creations using natural language.

View the demo video to comprehend what power Artifacts brings to us -

So, Go Ahead, and give Sider AI a try! Preview below -

So, that’s it. These were the best AI Coding Assistants that makes you a 100x developer when leveraged intelligently.

Possible Challenges & Awareness

AI is a powerful tool with unimaginable potential. We, as developers, it is upto us how we use it, so we can maximise Efficiency and scope for growth and progress. If used mindlessly, the same tools can bring disaster.

Uncritical adoption of AI Code Assistants can lead to significant issues. Developers must be mindful of the following situations:

• Security Vulnerabilities: AI-generated code may inadvertently introduce security flaws due to its training data or lack of contextual understanding, necessitating thorough code reviews.

• Over-Reliance and Skill Degradation: Constant dependence on AI can hinder the development of core programming skills like logical reasoning and problem-solving.

• Contextual Limitations: AI often lacks deep business understanding and struggles with the complexities of large-scale applications, potentially missing critical edge cases.

• Importance of Human Oversight: Developers must actively review, understand, and refine AI-generated code to ensure its security, efficiency, and alignment with project requirements.

What Is The Remedy? How To Tackle These Challenges?

Testing. Yes, unit tests, thorough testing and Full End to End testing is required and Highly Recommended for analyzing and identifying Errors and potential issues in your software generated by AI Code Assistants.

Here comes Keploy. Your Savior. Keploy stands out in the AI code generation space by specializing in automated test case creation and API mocking. Unlike generic coding assistants, Keploy focuses specifically on solving the pain points of testing in agile development environments.

• Automatic Test Case Generation: Captures and converts real API calls into test cases without requiring developers to write them manually.

• Mocks External Dependencies: Records external service interactions (like databases, third-party APIs) and creates mocks to simulate them during testing.

• Local and Secure Processing: Runs locally, ensuring all data and traffic stay within your environment—ideal for privacy-sensitive teams.

• Language-Agnostic Support: Works with multiple languages and frameworks, including Go, Node.js, and Java, making it flexible for varied tech stacks.

• Integration with CI/CD Pipelines: Seamlessly integrates into existing workflows for continuous testing and validation with tools like GitHub Actions and Jenkins.

• Shift-Left Testing: Empowers developers to catch bugs early by generating tests during development, not after deployment.

• Frictionless Developer Experience: Minimal configuration and effort needed—developers can focus on writing code while Keploy handles testing.

Explore Keploy for a well tested & automated, Developer Experience in AI Assisted software development.

Concluding

In the end everything depends on how we perceive and utilize the tools. The rise of AI coding tools marks a significant shift in software development.

Embrace the AI revolution in coding by leveraging tools like Supermaven, with its lightning-fast code suggestions and wide IDE integration; Cursor AI, the AI-first code editor that offers intelligent code completion and autonomous task completion; and Sider AI, the all-in-one AI chatbot and browser extension that provides access to various AI models and versatile features. These tools empower developers to achieve unprecedented levels of productivity and efficiency.

The key takeaway is that AI is a powerful force, and as developers, it's our responsibility to wield it wisely, maximizing its potential for growth and progress while remaining mindful of its potential pitfalls. By embracing these innovative tools thoughtfully, we can unlock a new era of software development, characterized by enhanced capabilities and accelerated innovation.

Remember the importance of human oversight and rigorous testing to ensure the reliability and security of your code. Embrace the AI revolution in coding, but do so thoughtfully and responsibly.

FAQ

Are these AI coding tools completely free to use?

While the article highlights fantastic free AI coding tools, it's important to note that many of them, like Supermaven and Cursor AI, often operate on a freemium model. This means they offer a valuable free tier with certain limitations, alongside paid subscription plans that unlock more advanced features, higher usage limits, or larger context windows. Sider AI also provides a free tier with daily credits.

So, you can definitely get started without spending money, but you might encounter limitations as your usage grows or if you need more advanced capabilities.

I'm comfortable with my current code editor (like VS Code or Neovim). Do I need to switch to a new one to benefit from AI?

Not necessarily! One of the key takeaways from the article is that many of these AI tools integrate directly into popular existing code editors. Supermaven, for example, offers seamless extensions for VS Code, Neovim, and JetBrains IDEs, allowing you to get AI assistance within your familiar environment. While Cursor AI is presented as an "AI-first" editor, you can still significantly enhance your workflow by using AI assistants as extensions in your current setup.

How much of a real difference can these AI tools make in my daily coding? Is it just hype?

These AI Assistants strongly emphasize a significant boost in efficiency and speed. While individual experiences may vary, Supermaven's fast inline suggestions and Cursor AI's autonomous agent mode, illustrate the potential for substantial time savings and reduced boilerplate code. Features like Sider AI's ability to quickly summarize documentation or explain complex topics can also drastically cut down on research time.

While there's always some level of hype around new technologies, the practical demonstrations and user testimonials around these tools suggest a genuine potential to completely transform your development workflow.

How can Keploy help as a remedy for inconsistencies in AI code assistance?

Keploy addresses the challenges of potential inconsistencies and errors in AI-generated code by providing a robust testing framework. It automatically generates test cases from real API calls, allowing developers to thoroughly validate the behavior and output of AI-assisted code. By mocking external dependencies, Keploy ensures consistent and reliable test environments, helping to identify and resolve any discrepancies or bugs introduced by AI code assistants. This proactive testing approach significantly enhances the reliability and quality of software developed with AI assistance.

Are these AI tools only for experienced developers, or can beginners benefit from them too?

Both experienced and beginner developers can find value in these AI tools. For experienced developers, the focus might be on accelerating complex tasks, exploring new approaches, and reducing repetitive coding.

For beginners, AI assistants can provide valuable guidance, suggest correct syntax, offer explanations, and even help understand existing codebases more quickly. While beginners should still focus on understanding fundamental concepts, these tools can act as powerful learning aids and help them become productive faster.