In an era where AIGC technologies and tools are exploding, the demand for and attention to efficient intelligent programming tools has reached unprecedented heights. This article will introduce 15 free and easy-to-use AI programming assistant tools. Whether you are an experienced developer or just beginning your programming journey, these AI code software can help you improve productivity, creativity, and accuracy in project development, enabling fast and efficient programming development.
Article Table of Contents:
- TRAE
- Code Raccoon
- OpenCode
- Qoder
- Kilo Code
- Cursor
- Windsurf
- Firebase Studio
- Lovable
- Bolt․new
- GitHub Copilot
- CodeGeeX
- Codex
- Replit Agent
- Atoms
TRAE
TRAE is a free AI IDE launched by ByteDance, enhancing development efficiency through AI technology. It supports native Chinese and integrates mainstream AI models such as Claude 4 and GPT-5 (the domestic version uses Doubao large model and DeepSeek model), and is completely free to use. TRAE's main features include Builder mode and Chat mode. Builder mode helps developers build projects from scratch, while Chat mode supports asking questions and optimizing codebases or programming issues. TRAE offers a friendly interaction design, such as code preview, Webview functionality, and powerful code generation capabilities.
⌨️ Supported Programming Languages
Trae supports languages such as Go, Python, C++, C, C#, Java, PHP, Rust, HTML, TypeScript, JavaScript, CSS, Less, swan, San, Vue, Stylus, Kotlin, Objective-C, Swift, Perl, Ruby, Shell, SQL, R, GraphQL, Dockerfile, RMarkdown, and more.
🛠️ Product Advantages and Features
Supports native Chinese and integrates GPT-5 and other mainstream AI models (the domestic version uses Doubao large model and DeepSeek model), free to use.
🤑 Product Price
TRAE is currently free, and users can download and install it from the official website to use it.
Code Raccoon
Code RaccoonRaccoon is a free AI programming assistant launched by SenseTime, powered by the SenseNova large model independently developed by SenseTime. It not only supports multiple programming languages but also has the ability to perform various tasks, bringing developers an unprecedented programming experience. Code Raccoon Raccoon integrates numerous intelligent code generation and assistance tools, covering the entire development cycle from software requirements analysis, architecture design, code writing to software testing. It can meet programmers' needs in code writing, data analysis, and programming learning, providing a comprehensive solution for programming work.
⌨️ Supported Programming Languages
Code Raccoon supports more than 30 mainstream programming languages, including Python, C#, C/C++, Java, Go, JavaScript, SQL, and more.
🛠️ Compatible Editors and IDEs
Code Raccoon is compatible with Visual Studio Code, Android Studio, and JetBrains' series of IDEs.
🤑 Product Price
Code Raccoonis currently completely free; users only need to go to the IDE and editor to download the corresponding plugin.
OpenCode
OpenCode is an open-source AI programming assistant developed in Go, providing a terminal-native interactive interface (TUI) and supporting direct use in the command line, IDE, or desktop. Similar to Claude Code, it is fully open source and not limited to a specific model. It can connect to 75+ large models such as Claude, GPT, and Gemini, and also supports local deployment (such as Ollama). Core features include intelligent code generation, project-level code understanding, Plan/Build dual-mode collaboration, LSP auto-loading, multi-session parallelism, and more.
⌨️ Supported Programming Languages
Supports almost all mainstream programming languages, including Go, Python, JavaScript/TypeScript, Java, C/C++, Rust, Ruby, PHP, C#, Swift, Kotlin, Shell, and SQL, etc., automatically identifying the project language through LSP without manual configuration.
🛠️ Compatible editors and IDEs
Supports VS Code, Cursor, the full JetBrains suite (IntelliJ IDEA, PyCharm, etc.), Neovim, Vim, Emacs, Sublime Text, Atom, as well as direct use in the command line via terminal TUI, while also providing a desktop application, achieving full coverage of the editor ecosystem.
🤑 Product pricing
Open source and free.
Qoder
Qoder is an Agentic programming platform launched by Alibaba, positioned as an "AI development partner for real-world engineering," addressing the efficiency and cognitive bottlenecks of complex software development. It can complete code, understand the structure of the entire project, automatically plan and execute multi-file modifications, and remember the user's coding style. Qoder's core features include Quest Mode, which can delegate complex tasks to an AI agent with one click; Repo Wiki, which can quickly generate a knowledge base for a codebase; and intelligent perception, which provides code suggestions beyond file boundaries. It supports over 200 programming languages.
⌨️ Supported programming languages
Qoder supports over 200 programming languages and is particularly skilled in mainstream languages such as JavaScript/TypeScript, Python, Go, C/C++, C#, Java, Kotlin, Rust, PHP, and SQL.
🛠️ Compatible editors and IDEs
Qoder supports a variety of mainstream IDEs and editors, including VS Code, IntelliJ IDEA, etc.
🤑 Product pricing
QoderCurrently in public beta, all features are free.
Kilo Code
Kilo Codeis an open-source AI programming assistant, co-founded with Sid Sijbrandij, co-founder of GitLab, and has currently received $8 million in seed funding. It supports VS Code, the JetBrains series of IDEs, Cursor, Windsurf, and CLI command-line environments, has over 1.5 million users, and ranks first on OpenRouter. Kilo Code's core advantage lies in its agentic engineering capabilities, providing multiple professional modes such as Architect (architecture planning), Code (code writing), Debug (debugging), Ask (Q&A), and Orchestrator (orchestration), and can automatically execute the complete development process from code generation and refactoring to debugging.
⌨️ Supported programming languages
Kilo Code supports all mainstream programming languages, including Python, JavaScript/TypeScript, Java, Go, Rust, C/C++, Ruby, PHP, Swift, Kotlin, C#, SQL, etc., and can handle code requirements for any tech stack through 500+ AI models.
🛠️ Compatible editors and IDEs
Kilo Code is compatible with VS Code, the full JetBrains suite (IntelliJ IDEA, PyCharm, etc.), Cursor, Windsurf, and command-line CLI environments.
🤑 Product pricing
Open source and free.
Cursor
Cursor is an AI code editor built on Visual Studio Code developed by Anysphere, making the coding process more intelligent and efficient through deep integration of AI technology. Cursor's core features include intelligent code generation and completion, where AI can predict the user's editing intent, generate entire code blocks, or suggest multi-line modifications. The Fusion model can generate near-instant, higher-quality cursor jumps, improving editing quality. Cursor supports AI chat, allowing users to converse directly with AI within the editor to generate code, explain complex problems, or perform debugging. It supports dragging and dropping images into the chat window, enhancing AI's ability to understand context.
⌨️ Supported programming languages
The programming languages supported by Cursor include but are not limited to Python, JavaScript, TypeScript, Java, C/C++, Go, Rust, Ruby, PHP, Swift, Kotlin, etc. Python and JavaScript/TypeScript are the two best-performing languages because these languages have a large amount of model training data. Cursor supports front-end development languages such as HTML and CSS.
🛠️ Compatible editors and IDEs
Cursor is compatible with mainstream editors and IDEs such as Visual Studio Code and JetBrains IDEs.
🤑 Product pricing
- Free: Two-week Pro trial; 2,000 completions; 50 slow premium requests.
- Pro: $20/month, includes all free features, additionally provides unlimited completions; 500 fast premium requests per month; unlimited slow premium requests.
- Enterprise: $40/user/month, includes all Pro features, additionally provides mandatory privacy mode enabled across the entire organization; centralized team billing; admin dashboard with usage statistics; SAML/OIDC single sign-on.
Windsurf
Windsurf is an AI programming tool launched by Codeium. It adopts the AI Flow paradigm, supports multi-step and multi-tool collaboration, automatically maintains context state, collaborates with developers like Copilot, and independently handles complex tasks like an Agent. It provides deep context awareness, multi-file editing, and command suggestions; built-in code search functionality can analyze tool file system operations, manage command-line integration, and automate intelligent code editing and refactoring. Windsurf has powerful context understanding capabilities, can complete code, and predict the developer's next action. The latest version of Windsurf introduces features such as web search, automated memory, and code execution optimization, and provides an enterprise-grade hybrid deployment version.
⌨️ Supported programming languages
Windsurf supports as many as 70 programming languages, including but not limited to JavaScript, Python, TypeScript, and Java, etc.
🛠️ Compatible editors and IDEs
Windsurf is compatible with mainstream editors and IDEs such as Visual Studio Code, JetBrains IDEs, Visual Studio, Neovim, Vim, Emacs, Xcode, Sublime Text, and Eclipse.
🤑 Product pricing
- Free plan
- Provides 5 user prompt credits and 5 flow action credits per month.
- Provides unlimited AI autocomplete suggestions and unlimited in-editor AI chat.
- Supports basic context awareness and limited indexing.
- One-time trial: 50 premium model user prompt credits and 200 premium model flow action credits.
- Pro Plan: $15 per month
- Provides 500 user prompt credits and 1,500 flow action credits per month.
- Provides additional access to larger models and enhanced features.
- Supports additional credit purchases (300 credits for $10).
- Pro Ultimate Plan: $60 per month
- Provides unlimited user prompt credits and 3,000 flow action credits per month.
- Supports the purchase of an additional 400 flow action credits ($10).
- Provides all premium features with no feature limitations.
Firebase Studio
Firebase Studio is a cloud-based full-stack application development AI programming tool launched by Google, capable of quickly building and delivering high-quality applications with integrated AI features. It combines Project IDX and a dedicated Firebase AI agent, supporting multi-dimensional development from backend to frontend, mobile apps, and more. Developers can quickly generate application prototypes through natural language and image doodles, and use Gemini technology for AI-assisted code generation, debugging, and testing.
⌨️ Supported Programming Languages
Firebase Studio supports a variety of mainstream programming languages and frameworks, including but not limited to JavaScript, TypeScript, Python, Java, Kotlin, Swift, Go, .NET, Node.js. Firebase Studio supports a variety of popular frameworks, such as React, Next.js, Angular, Vue.js, Flutter, Android, etc.
🛠️ Compatible Editors and IDEs
- Built-in Editor: Firebase Studio has a built-in code editor based on Code OSS, providing a development experience similar to VS Code.
- Custom Development Environment: Firebase Studio supports customizing the development environment through Nix configuration files. Developers can flexibly configure system software packages, language tools, IDE configurations, etc., according to project needs.
- Extension Support: Firebase Studio supports Open VSX extensions. Developers can install various extensions to enhance the editor's functionality and meet different development needs.
- Compatibility with Mainstream IDEs: Visual Studio Code, IntelliJ IDEA, etc.
🤑 Product Pricing
- Free Users: Each user gets three workspaces for free.
- Google Developer Program Users: After joining the Google Developer Program, users can create up to 10 workspaces.
- Google Developer Premium Plan Users: After subscribing to the Google Developer Premium Plan, users get 30 workspaces.
Lovable
Lovable is an innovative full-stack AI application development tool. Through natural language interaction, users only need to describe their requirements in text to quickly generate complete frontend interface and backend logic code. It supports real-time rendering and preview, allowing users to instantly view development results and optimize based on feedback. Lovable AI integrates Supabase to meet backend functional requirements such as database connection, user authentication, and data storage. The one-click deployment feature allows applications to quickly go live and be shared.
⌨️ Supported Programming Languages
Lovable supports multiple programming languages, mainly covering frontend and backend development:
- Frontend Development：
- JavaScript: Supports technology stacks such as React, Tailwind, and Vite.
- TypeScript: Supports development based on React, Tailwind, Vite, and TypeScript.
- Backend Development: Supports integration with the Supabase database to enable backend service generation and database connection.
🛠️ Compatible Editors and IDEs
Lovable is compatible with all mainstream code editors and IDEs, such as Visual Studio Code, JetBrains series IDEs, etc.
🤑 Product Pricing
- Starter: $20 per month; suitable for hobbyists and occasional users
- All features of the free version
- Additional usage beyond the monthly limit
- Unlimited private projects
- Custom domains
- Launch: $50 per month; suitable for individuals working on small projects
- All features of the Starter plan
- 2.5x usage limit per month
- Scale1 (Scale plan): $100 per month (5x monthly limit); suitable for individuals working on larger projects
- All features of the Starter plan
- Larger message limits
- Early access to new features
Bolt․new
Bolt.new is an AI-driven full-stack web development platform launched by StackBlitz. It supports users in describing project requirements in natural language, and the AI automatically generates code, supporting multiple development frameworks such as React, Vue, and Next.js. The platform runs entirely in the browser, requires no local software installation, and provides a complete development environment, including front-end and back-end development features, supporting operations such as running Node.js servers and installing npm packages. After development is complete, users can deploy the app to cloud platforms such as Netlify or Cloudflare with one click.
⌨️ Supported programming languages
Bolt.new supports multiple programming languages and frameworks. Programming languages include but are not limited to Python, JavaScript, TypeScript, PHP, Java, and Ruby. On the back end, it supports technology stacks such as Node.js and Express.
🛠️ Compatible editors and IDEs
Bolt.new provides a VS Code-like editor experience and integrates with Chrome DevTools.
🤑 Product pricing
- Free plan: Provides a browser-based IDE and supports creating public projects, but the file upload size limit is 1MB.
- Paid plan: Includes the Pro plan and Teams plan, providing features such as unlimited file uploads, private project sharing, and team collaboration.
GitHub Copilot
GitHub Copilotis an AI programming assistant launched by GitHub, the world's largest programmer community and code hosting platform, together with OpenAI and the Microsoft Azure team. The tool is based on the OpenAI Codex large model and has been improved and upgraded, and has been used by more than several million developers and over 20,000 enterprise organizations cumulatively. GitHub Copilot supports and is compatible with multiple languages and IDEs, can quickly provide code suggestions to programmers, and helps developers write code faster and with less effort.
⌨️ Supported programming languages
GitHub Copilot supports C, C++, C#, Go, Java, JavaScript, PHP, Python, Ruby, Scala, and TypeScript.
🛠️ Compatible editors and IDEs
GitHub Copilot supports and is compatible with Visual Studio, NeoVim, VS Code, Azure Data Studio, and the series of IDEs and code editors under JetBrains.
🤑 Product pricing
For verified students, teachers, or maintainers of popular open-source projects, GitHub Copilot can be used for free. For regular users, GitHub Copilot offers a free 30-day trial. After the free trial ends, a paid subscription is required. For individuals, GitHub Copilot costs $10 per month (or $100 per year if paid annually). For the Business subscription, it is $19 per user per month.
CodeGeeX
CodeGeeXis an open-source free AI programming assistant launched by Zhipu AI. The tool is based on a pretrained large model with 13 billion parameters, can quickly generate code, and helps developers improve development efficiency. CodeGeeX supports multiple IDEs and programming languages, and provides AI features such as automatic code generation and completion, code translation, automatic comment addition, and intelligent Q&A.
⌨️ Supported programming languages
CodeGeeX supports multiple programming languages such as Python, Java, C++, C, C#, JavaScript, Go, PHP, and TypeScript.
🛠️ Compatible editors and IDEs
Code editors and IDEs supported by CodeGeeX include Visual Studio Code, IntelliJ IDEA, PyCharm, WebStorm, HBuilderX, GoLand, Android Studio, and PhpStorm.
🤑 Product Pricing
The CodeGeeX plugin is completely free for individual users, and its code model has been open-sourced.
Codex
Codex is an AI coding agent launched by OpenAI, based on the codex-1 model (optimized from the o3 reasoning model), and designed specifically for software engineering tasks. It can handle multiple tasks in parallel, such as code generation, bug fixing, codebase Q&A, and PR suggestions. It runs in an independent cloud sandbox environment and supports Git integration, with tasks typically taking 1-30 minutes. Codex adopts a human-style coding approach and, optimized through reinforcement learning, can iteratively run tests until they pass. The entire workflow is auditable, and users can track terminal logs and test output. It is currently integrated into the ChatGPT sidebar and available to Pro, Enterprise, and Team subscribers, with Plus and Edu users to gain access later.
⌨️ Supported Programming Languages
Codex supports mainstream programming languages such as Python, JavaScript, TypeScript, Ruby, Go, Java, PHP, C++, C#, Swift, Rust, Kotlin, SQL, and Bash.
🛠️ Compatible Editors and IDEs
Codex is mainly integrated for use in the ChatGPT web interface and the Codex CLI command-line tool. It does not currently support traditional IDE plugins, but developers can invoke its functionality in mainstream editors such as VS Code, Cursor, and Zed through the CLI tool.
🤑 Product Pricing
Available to Pro, Enterprise, and Team subscribers.
Replit Agent
Replit Agent is an AI programming assistant tool launched by Replit that helps users quickly develop software projects through natural language interaction. Users only need to describe their requirements in simple text, and Replit Agent can automatically generate code and complete the entire process from environment configuration to application deployment. It supports multiple programming languages and technology frameworks, suitable for different user groups ranging from beginners to professional developers.
⌨️ Supported Programming Languages
Replit Agent supports multiple mainstream programming languages and can meet different types of development needs. Python, JavaScript/TypeScript, HTML/CSS, Node.js, SQL, Ruby, Java, Go, C++,
🛠️ Compatible Editors and IDEs
Replit Agent is built into Replit's online IDE; mobile app support allows project development via phone or tablet.
🤑 Product Pricing
-
Core Plan: about $15/month.
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Teams Pro Plan: $7/person/month.
Atoms
Atoms is a multi-agent AI development platform that lets users describe ideas in natural language and build deployable full-stack applications within minutes. The platform is equipped with a complete AI virtual team, including a deep researcher, product manager, architect, team lead, SEO specialist, engineer, and data analyst, covering the entire process from market research, product design, and code development to deployment and operations.
⌨️ Supported Programming Languages
Atoms mainly supports JavaScript/TypeScript for full-stack application development and, through AI integration, supports calling backend services in languages such as Python .
🛠️ Compatible Editors and IDEs
Compatible with mainstream editors such as VS Code and a built-in visual editor.
🤑 Product Pricing
For specific pricing information, please visit the official website.