Best Open Source Alternatives to Claude Code

Self-improving AI agent with built-in learning loop, multi-platform chat, and serverless deployment.

Open source AI agent for code, workflows, and automation with desktop, CLI, and API.

Open-source Rust terminal coding agent that works with any model, hosted or local.

Open-source terminal coding-agent CLI that runs any LLM provider, local or cloud, with MCP and slash commands.

Open-source coding agent with IDE-grade LSP/DAP, 60+ model providers, and built-in MCP support.

Open-source coding-agent CLI for cloud and local LLMs with MCP support.

jcode is a RAM-efficient AI coding agent harness with MCP support, optimized for multi-session workflows.

Free open-source desktop downloader and AI agent GUI for 1,800+ sites, courses, and local LLMs.

Open-source meta-harness to orchestrate AI agents like Claude Code, Codex, and Cursor with policies, sandboxing, and cro

A 100-line Python AI agent that solves GitHub issues and CLI tasks, scoring >74% on SWE-bench verified.

ANUS is a Grok-powered terminal AI agent with MCP tooling that autonomously contributes to its own codebase.

Local-first AI agent workspace for coding, writing, design, research, and automation with GUI and TUI.

Apache Maka is a high-performance open-source AI agent workspace that logs every action as an append-only RuntimeEvent.

Open-source workspace to build, share, and run AI agents that automate your work.

Open-source enterprise AI coding platform with cloud dev environments and team collaboration.

Fast-agent is a flexible CLI-first framework for coding, building, and evaluating AI agents with MCP, ACP, and A2A suppo

Local-first desktop workspace for AI coding agents with model-agnostic providers and installable plugins.

Open-source framework to build and deploy intelligent agents for real work.

Fast, self-contained terminal AI coding agent with cost-aware routing across LLM providers.