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Open-source alternatives to GitHub Copilot for AI coding

This hub lists open-source AI coding assistants people compare with GitHub Copilot-style code completion and chat tools. GitHub Copilot is named only to identify that class of product. Continue is included as a read-only snapshot, not as a current recommendation.

Quick take.
  1. Cline — Open-source coding agent for VS Code, JetBrains, CLI, SDK, and a desktop app.
  2. Tabby — Self-hosted AI coding assistant. Apache-2.0 core; ee/ is separately licensed.
  3. Aider — Apache-2.0 AI pair programmer in the terminal. Latest GitHub release in this check is 2025-08-09.

How we pick

Comparison

NameLicenseStars (GitHub)Best for
ClineApache-2.070,477Open-source coding agent for VS Code, JetBrains, CLI, SDK, and a desktop app.
TabbyApache-2.033,917Self-hosted AI coding assistant. Apache-2.0 core; ee/ is separately licensed.
AiderApache-2.049,640Apache-2.0 AI pair programmer in the terminal. Latest GitHub release in this check is 2025-08-09.
ContinueApache-2.036,261Apache-2.0 coding agent (CLI, VS Code, JetBrains). README says the repo is now read-only.

Lead tool: Cline (Apache-2.0, 70,477 stars). Also Tabby (Apache-2.0 core, 33,917 stars, last push 2026-06-30), Aider (Apache-2.0, 49,640 stars, last push 2026-05-22), and Continue (Apache-2.0, 36,261 stars, read-only per its README). Compare Continue vs Cursor. Cursor-class agents: Cursor alternatives (OpenCursor, Cline vs OpenCursor). Claude Code-class hub: Claude Code alternatives. Coding models: Reflection Beam, Flint (Apache-2.0 39.8B/2.5B local MoE; Flint vs Ornith-1.5-122B). Chat: ChatGPT alternatives.

Sourced snapshot (2026-10-19)

Field Cline Tabby Aider Continue
Repository cline/cline TabbyML/tabby Aider-AI/aider continuedev/continue
Stars / forks 70,477 / 7,697 (2026-10-18 tool page) 33,917 / 1,791 49,640 / 5,081 36,261 / 5,494
License Apache-2.0 Apache-2.0 core; ee/ separate Apache-2.0 Apache-2.0
Last push 2026-10-18 2026-06-30 2026-05-22 2026-10-18 (repo marked read-only)
Status Active agent Self-hosted server Terminal pair programmer README says read-only / final 2.0.0
Quality vs Copilot Not independently tested Not independently tested Not independently tested Not independently tested

Why people look for GitHub Copilot alternatives

GitHub Copilot is a popular AI pair programmer with code suggestions, completions, and chat powered by OpenAI models. People search for alternatives because:

  • Open-source preference: Want tools they can audit, modify, and self-host
  • Privacy: Prefer not to send code to Microsoft/OpenAI servers
  • Cost: Copilot subscriptions add up for individuals and enterprises
  • Model choice: Want to use Claude, CodeLlama, StarCoder, or custom models
  • Self-hosting: Need on-premise AI for enterprise security/compliance
  • Licensing concerns: Worry about code provenance and training data

AI coding tool categories

Open-source GitHub Copilot alternatives fall into patterns:

  • IDE extensions with API backends: Continue, CodeGPT use external model APIs
  • Self-hosted servers: Tabby runs your own model server for completions
  • Code-aware platforms: Cody integrates with Sourcegraph for codebase context
  • Multi-model support: Most tools let you swap LLM providers (OpenAI, Anthropic, local)

We do not claim any matches Copilot’s training on GitHub code, suggestion quality, or enterprise integrations.

Listed tools: quick comparison

Tool Type License Best for
Continue IDE extension Apache-2.0 Chat+autocomplete, VS Code+JetBrains, multi-model
Tabby Self-hosted server Apache-2.0 Self-hosting, IDE-agnostic, StarCoder/CodeLlama
CodeGPT IDE extension Apache-2.0 Multi-provider (GPT, Claude, Gemini), chat+commands
Cody IDE extension Apache-2.0 Sourcegraph context, code search, Claude backend

All stats are verified from official repositories as of 2026-10-16 checks, or marked unverified.

Listed options

Cline

Open-source coding agent for VS Code, JetBrains, CLI, SDK, and a desktop app.

Apache-2.0

Tabby

Self-hosted AI coding assistant. Apache-2.0 core; ee/ is separately licensed.

Apache-2.0

Aider

Apache-2.0 AI pair programmer in the terminal. Latest GitHub release in this check is 2025-08-09.

Apache-2.0

Continue

Apache-2.0 coding agent (CLI, VS Code, JetBrains). README says the repo is now read-only.

Apache-2.0

FAQ

What is the best open-source GitHub Copilot alternative?

It depends on your needs. Continue (Apache-2.0) is a VS Code/JetBrains extension with chat and autocomplete, Tabby (Apache-2.0) is a self-hosted AI coding assistant, CodeGPT (Apache-2.0) integrates with multiple AI providers, and Cody (Apache-2.0) from Sourcegraph offers code-aware AI chat. We do not claim any matches Copilot's training or suggestions.

Can I self-host these tools?

Yes. Tabby is designed for self-hosted deployment. Continue and CodeGPT can use self-hosted models or APIs. Cody can use self-hosted Sourcegraph instances. Check each tool's deployment docs.

Do they support VS Code and JetBrains IDEs?

Continue supports VS Code and JetBrains. Tabby has VS Code, JetBrains, and Vim extensions. CodeGPT is primarily VS Code and JetBrains. Cody supports VS Code, JetBrains, and Neovim. Extension support varies; check each project's docs.

What models do they use?

Continue supports OpenAI, Anthropic, Ollama, and more. Tabby uses StarCoder/CodeLlama-style models. CodeGPT integrates with ChatGPT, Claude, and others. Cody uses Claude by default but supports custom models. All allow local or API-based models.

Are they truly free compared to Copilot?

The open-source tools are free to install, but they may call paid APIs (OpenAI, Anthropic) or require you to run models locally (which needs GPU resources). Tabby and self-hosted setups can be zero-cost if you run free models like CodeLlama.

Related models, comparisons, and hubs

Sources & verification

Last verified 2026-10-23 · Last updated 2026-10-23· Edited by forkalt editors · Editorial policy

License notes are not legal advice. Read the original LICENSE. Trademark & disclaimer.