Open Source Alternatives to Claude Code
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Claude Code is Anthropic's agentic coding tool. It runs in your terminal, IDE, or browser, reads your codebase, edits files, runs commands, and manages git. Full details →
Claude Code ties you to Anthropic’s models and cloud infrastructure. The open source agents below let you pick any LLM provider — including running models locally via Ollama for offline or air-gapped use — and they can be self-hosted on your own infrastructure instead of depending on a vendor’s servers. They also cover different interfaces (terminal, IDE, or browser), so the right pick depends more on your workflow than on raw capability.
Which One Should You Pick?
- Want a terminal-based workflow, close to how Claude Code itself works? → Aider
- Want it built into VS Code or JetBrains, actively maintained? → Cline
- Want a full autonomous agent with its own sandboxed browser/shell access? → OpenHands
- Already have Continue configured and don’t need new features? → Continue still works, but it’s no longer maintained (acquired by Cursor, June 2026) — don’t start a new setup on it; pick Cline or Aider instead for anything long-term.
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Open Source Alternatives
Aider
AI pair programming in your terminal
Aider is a free, open source AI pair programming tool for the terminal. It works with Claude, GPT, Gemini, DeepSeek, and local LLMs to edit code in git repos.
OpenHands
AI-driven autonomous development assistant
OpenHands is an open source AI coding agent (formerly OpenDevin) that writes code and runs sandboxed commands, self-hostable via Docker with a browser UI.
Cline
Autonomous coding agent as SDK, IDE extension, or CLI
Cline is an open source autonomous coding agent for VS Code, JetBrains, CLI, or SDK use. Supports Claude, GPT, Gemini, and local models.
Continue
Open source coding agent for VS Code and JetBrains
Continue is an open source AI coding agent for VS Code and JetBrains with autocomplete, chat, and agentic editing. Unmaintained since mid-2026.
Feature Comparison
| Feature | License | Local Models | Interface | Self-hostable |
|---|---|---|---|---|
| Aider | Apache-2.0 | Yes (Ollama, LM Studio) | Terminal / CLI | Yes |
| Cline | Apache-2.0 | Yes (Ollama) | VS Code, JetBrains (early access), CLI, SDK | Yes |
| OpenHands | MIT | Yes, via local endpoints | Browser UI, self-hosted or cloud | Yes |
| Continue | Apache-2.0 | Yes (Ollama, LM Studio) | VS Code, JetBrains | Yes (unmaintained since mid-2026) |
Frequently Asked Questions
Is there a free alternative to Claude Code?
Yes — Aider, Cline, OpenHands, and Continue are all free and open source. Note that the LLM you connect them to (e.g. Claude, GPT) is a separate cost unless you run a local model via Ollama or LM Studio.
Can I run Claude Code alternatives locally?
Yes. All four tools below support local models through Ollama or LM Studio, and can run entirely on your own machine or infrastructure with no cloud dependency, though local models are generally less capable than hosted frontier models.
What is the open source equivalent of Claude Code?
There's no single 1:1 clone, since Claude Code is a terminal-based agent tied to Anthropic's models. Aider is the closest match for terminal workflows; Cline and Continue replicate the IDE-integrated experience; OpenHands targets more autonomous, sandboxed multi-step tasks.