Tabby

Tabby is an open-source, self-hosted AI coding assistant built in Rust that runs entirely on your own hardware with no cloud dependency, offering code completion, inline chat, and a shareable Answer Engine over your codebase. It is Apache 2.0 licensed, model-agnostic, runs on consumer NVIDIA or Apple Silicon GPUs, and supports 12-plus IDEs. It is ideal for privacy-conscious and regulated teams wanting a Copilot alternative, though it requires GPU and DevOps effort.

Tabby (by TabbyML) is an open-source, self-hosted AI coding assistant positioned as a privacy-first alternative to GitHub Copilot. Written in Rust and fully self-contained, it runs on your own infrastructure with no external database or cloud dependency, so code never leaves your environment. Its Apache 2.0-licensed core provides real-time inline code completion, inline chat tied to your code, and an Answer Engine that offers a shareable natural-language Q&A layer over your indexed repositories. Tabby is model-agnostic and runs on consumer-grade GPUs, supporting both NVIDIA (CUDA) and Apple Silicon (Metal) without a GPU cluster. It works with open code LLMs such as CodeLlama, StarCoder, Qwen, and DeepSeek, indexes Git repositories (including multi-branch indexing in recent releases), and pulls in additional context from docs, config files, external APIs, and GitLab merge requests, issues, and commits. It ships plugins for 12-plus IDEs, including VS Code, JetBrains, and Vim/Neovim, and includes SSO/OAuth, team administration, and analytics in the free self-hosted build. The project is actively developed, with tens of thousands of GitHub stars and a large contributor base. The self-hosted community edition is free and unlimited, a managed cloud Team plan runs around $24 per user per month, and enterprise pricing is custom. Tabby is ideal for privacy-conscious and regulated teams that want a Copilot alternative on their own GPUs, but it requires GPU and DevOps effort to run, and completion quality depends on the underlying open model rather than a frontier proprietary one.