Refact.ai

Short Intro: Refact.ai is an open-source AI coding agent built by Small Cloud, a company founded by a former OpenAI team member whose identity is not publicly disclosed. The BSD-3-Clause licensed tool runs a local Rust engine inside the IDE that handles AST parsing, vector database indexing, and task tracking without sending data to external servers by default. Refact Cloud has been retired, making the product entirely local-first and BYOK.

Key Capabilities:

• Local Rust engine managing AST indexes, semantic search, checkpointing, and task tracking entirely on the developer's machine

• BYOK model connectivity to OpenAI, Anthropic, Gemini, DeepSeek, Groq, Cerebras, Ollama, LM Studio, vLLM, and other OpenAI-compatible endpoints

• Autonomous end-to-end agent that integrates with GitHub, GitLab, Docker, PostgreSQL, and MySQL to plan, execute, and iterate on engineering tasks

• Deep codebase awareness combining open files, AST symbols, semantic search, git state, and previous task trajectories

• Fill-in-the-Middle code completion across 25+ programming languages

• Fine-tuning on company codebases for enterprise teams requiring accuracy on proprietary patterns

• On-premise and self-hosted deployment with code that never leaves internal servers

• IDE coverage for VS Code, JetBrains, Visual Studio, Neovim, and Sublime Text

• Browser automation included in the core agent capability set

• Customizable toolbox with commands for explaining, refactoring, documenting, and bug-finding

• AWS Inferentia2 support with 1.5x price-performance advantage for enterprise AWS deployments

• BSD-3-Clause licensed with refact-bench open-source tooling for SWE-bench evaluation

See Refact.ai pricing details →