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Tabby

Self-hosted AI coding assistant

open sourceupdated Aug 16, 2026

Tabby is an open-source, self-hosted AI coding assistant that serves as a privacy-focused alternative to GitHub Copilot. It provides code completion, chat-based coding assistance, and IDE integrations while running entirely on your own infrastructure with support for consumer-grade GPUs. Tabby supports multiple LLM backends and offers extensions for VS Code, JetBrains, Vim, and other editors, giving teams full control over their AI coding tools without sending code to external services.

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Tabby is a self-hosted AI coding assistant written in Rust that gives development teams a privacy-first alternative to GitHub Copilot. The entire system is self-contained — no external database, no cloud dependency, no code leaving your network. A single Docker command spins up a server that handles code completion and chat using models like StarCoder, CodeLlama, CodeGemma, or Qwen, running on consumer-grade GPUs (an RTX 3060 is enough for a small team) or even CPU-only setups for lighter workloads. With over 32,000 GitHub stars, it has become the go-to choice for organizations that need AI coding assistance without sending proprietary code to third parties.

Beyond basic autocomplete, Tabby includes an Answer Engine that functions as an internal knowledge hub for engineering teams — developers ask questions directly in their IDE and get answers grounded in the team's own codebase, documentation, and Git history. Repository-level context indexing means suggestions account for project-wide patterns, naming conventions, and dependencies rather than generating code in a vacuum. The tool also supports GitLab merge request indexing, custom documentation ingestion via REST APIs, and inline chat for contextual collaboration. IDE extensions cover VS Code, JetBrains, Neovim, and Vim, with an OpenAPI interface for integrating into cloud IDEs or custom toolchains.

Enterprise features include LDAP authentication, GitHub and GitLab SSO, team usage analytics with per-developer reports, and audit logging. Tabby can be deployed via Docker, SkyPilot for multi-cloud GPU clusters, or BentoCloud for managed inference. Version 0.30 added GitLab merge request context, and an agent mode is in private preview for more autonomous coding tasks. For teams that want the productivity gains of AI coding tools but cannot accept the intellectual property and compliance risks of cloud-based solutions, Tabby fills a gap that few other tools address at this level of maturity.

Pricing

Free and open-source, self-hosted

Platforms

Self-hosted, Docker, CUDA/ROCm GPU support, major IDE plugins

Categories

Tags

Use Cases

GitHub Copilot logo

GitHub Copilot

AI pair programmer by GitHub

AI-powered code assistant from GitHub and OpenAI that provides real-time code suggestions, completions, and chat-based help directly in your editor. Offers inline completions, a chat interface, an autonomous coding agent that can implement features from GitHub Issues, and AI code review with 60M+ reviews processed. Supports GPT-4o, Claude Sonnet, and Gemini Pro. Works with VS Code, Visual Studio, JetBrains IDEs, Neovim, Xcode, and Eclipse. The benchmark AI pair programmer.

freemiumTelemetry
Cursor logo

Cursor

Top Pick

The AI-first code editor

AI-first code editor built as a VS Code fork that deeply integrates LLMs into every part of the development workflow. Features Tab autocomplete with multi-line predictions, Cmd+K inline editing, AI chat with full codebase awareness, and Agent mode for autonomous multi-file edits with terminal execution. Supports GPT-4, Claude, and more with automatic context from project files and docs. Includes privacy mode for SOC 2 compliance. The leading AI-native IDE with 100K+ paying users.

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Gemini Code Assist logo

Gemini Code Assist

Google's enterprise AI coding assistant powered by Gemini

Gemini Code Assist is Google's business AI coding assistant for VS Code, JetBrains IDEs, Cloud Workstations, GitHub, and Google Cloud workflows. Standard and Enterprise plans include Gemini 3, a 1M-token context window, Gemini CLI access, preview agent mode, code completion, chat, transformation, PR review, and enterprise governance controls for GCP-heavy teams.

freemium

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FAQ

What is Tabby?

Tabby is an open-source, self-hosted AI coding assistant that serves as a privacy-focused alternative to GitHub Copilot. It provides code completion, chat-based coding assistance, and IDE integrations while running entirely on your own infrastructure with support for consumer-grade GPUs. Tabby supports multiple LLM backends and offers extensions for VS Code, JetBrains, Vim, and other editors, giving teams full control over their AI coding tools without sending code to external services.

Is Tabby free?

Yes — Tabby is open source and free to use. Free and open-source, self-hosted

Is Tabby open source?

Yes — Tabby is open source.

What are the best Tabby alternatives?

The top editor-verified Tabby alternatives are GitHub Copilot, Cursor, Gemini Code Assist.

How does Tabby score in our review?

Our hands-on review scores Tabby 85/100 overall, based on speed, privacy, and developer-experience testing.