
The AI coding agent for building ambitious software
The AI coding agent for building ambitious software
Refact.ai: An open-source AI coding assistant for code completion and refactoring, though integrated within traditional IDEs. Pi Coding Agent records 1,929,244 monthly visits with +4% month-over-month growth and Free 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 | pi.dev | refact.ai |
| Pricing Model | Free | Freemium |
| Monthly Visits | 1.93M (1,929,244) | 40.17K (40,171) |
| MoM Traffic Delta | +74.89K (+4%) | -10.53K (-20.8%) |
| Primary Market & Share | 🇨🇳 China (33.4%) | 🇺🇸 United States (18.4%) |
| Direct Visits / mo | 902.21K | 5.72K |
| User Rating | 4.6 | 4.4 |
| Supported Platforms | Website | Website |
A minimal, extensible terminal coding agent you can reshape
Build commands, tools, keyboard shortcuts, overlays, sub-agents or permission gates as TypeScript extensions, or install them as packages from npm and git.
AGENTS.md instructions, per-project SYSTEM.md, on-demand skills, prompt templates and customizable compaction keep the context window under your control.
Connect 15+ providers from Anthropic and OpenAI to Bedrock, Groq, OpenRouter and local Ollama, then switch models mid-session.
Interactive TUI, print/JSON for scripting, an RPC protocol for non-Node hosts, and an SDK for embedding the agent.

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

Describe your idea and Replit builds a working app in minutes

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
An agentic coding platform that ships real software
SpecialistAn autonomous software engineer that handles end-to-end repository tasks, but operates as a cloud service rather than locally.
SpecialistAn autonomous software engineer that handles end-to-end repository tasks, but operates as a cloud service rather than locally.

The coding agent that learns your coding taste
The coding agent that learns your coding taste

Free / Open-sourceOpen-source control plane for orchestrating coding agents

AI code review, PR triage, and security monitoring for fast-moving teams
AI code review, PR triage, and security monitoring for fast-moving teams
An AI-powered integrated development environment providing comprehensive project understanding, but operating as a desktop app.
An AI-powered integrated development environment providing comprehensive project understanding, but operating as a desktop app.
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

AI coding agent for VS Code, JetBrains and Visual Studio with bring-your-own-key model freedom