
The AI coding agent for building ambitious software
The AI coding agent for building ambitious software
Coddy records 7,478,457 monthly visits with +17.8% month-over-month growth and Freemium pricing. Refact.ai records 40,171 monthly visits with -20.8% growth and Freemium pricing.

Open-source, self-hosted AI coding agent that codes like you
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | coddy.tech | refact.ai |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 7.48M (7,478,457) | 40.17K (40,171) |
| MoM Traffic Delta | +1.13M (+17.8%) | -10.53K (-20.8%) |
| Primary Market & Share | 🇺🇸 United States (15.4%) | 🇺🇸 United States (18.4%) |
| Direct Visits / mo | 3.13M | 5.72K |
| User Rating | 4.3 | 4.4 |
| Supported Platforms | Website | Website |
Learn to code free with hands-on lessons and instant playgrounds
Short, practice-first coding lessons that run directly in your browser, so you can start learning without installing a compiler or development environment.
Dedicated playgrounds for Python, JavaScript, C, C++, Java, SQL, React, Go, Swift and many other languages let you test snippets and experiment immediately after each lesson.
Structured curricula such as Software Engineer, Frontend, Full Stack, Backend, Data Analyst, Data Scientist, DevOps and game development bundle the skills employers actually ask for.
Streak-style daily coding challenges and progress tracking help learners build a consistent habit and stay motivated between longer courses.

Open-source, self-hosted AI coding agent that codes like you
A task-driven agent that plans work, searches your repository for context and executes changes step by step, connecting to GitHub, databases and CI/CD.
In-IDE chat for asking, editing, debugging and generating code in natural language, plus fast multi-line autocompletion powered by RAG over your project.
Deploy on-premise or run the open-source version to keep your code private and fully under your own control.
Pick from leading LLMs or bring your own API key, and fine-tune the agent on your company's coding style and stack.

The AI coding agent for building ambitious software
The AI coding agent for building ambitious software

Free / Open-sourceWrite code with precision, hand bigger jobs to agents, and keep working from anywhere
Free / Open-sourceWrite code with precision, hand bigger jobs to agents, and keep working from anywhere

Delivers structured data science and coding courses with interactive playgrounds, but focuses heavily on data analytics rather than general software engineering.
An agentic coding platform that ships real software

SpecialistTeaches computer science and logic through visual interactive puzzles and an AI tutor, but lacks traditional text-editor coding playgrounds.

The coding agent that learns your coding taste
The coding agent that learns your coding taste
Free / Open-sourceA minimal, extensible terminal coding agent you can reshape
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SpecialistFocuses on hands-on browser-based Linux and DevOps labs with AI guidance, rather than general multi-language programming fundamentals.
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Free / Open-sourceOpen-source control plane for orchestrating coding agents

AI code review, PR triage, and security monitoring for fast-moving teams
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Baidu's ERNIE-powered AI coding partner for your IDE

Free / Open-sourceOpen-source AI pair programming inside your terminal and git repo
Free / Open-sourceOpen-source AI pair programming inside your terminal and git repo