The best open source alternative to Claude Code is opencode. If that doesn't suit you, our users have ranked more than 100 alternatives to Claude Code and loads of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Claude Code are Void, Mellum, Emdash and Warp Terminal.
Terminal-based AI coding assistant featuring a themed native UI, automatic LSP integration, multi-agent sessions, 75+ supported LLMs, local and cloud model options, shareable debugging links, open source licensing, and session sharing for collaborative coding workflows.
The open source AI code editor. Write code with the best AI tools, use any model, and retain full control over your data.
Mellum-4b-base is JetBrains' first open-source large language model (LLM) optimized for code-related tasks.
Emdash is a provider-agnostic desktop app that lets you run multiple coding agents in parallel, each isolated in its own git worktree, either locally or over SSH on a remote machine. We call it an Agentic Development Environment (ADE).
Warp is a blazingly fast, Rust-based terminal that makes you and your team more productive at coding and DevOps.
Pi aka Pi.dev is a minimal terminal coding harness. Adapt pi to your workflows, not the other way around, without having to fork and modify pi internals.
OpenHands is an open-source project aiming to replicate Devin, an autonomous AI software engineer who is capable of executing complex engineering tasks and collaborating actively with users on software development projects.
Tabby is an open-source, self-hosted AI coding assistant. With Tabby, every team can set up its own LLM-powered code completion server with ease.
Terminal-native open-source AI coding assistant for Mac, Windows, Linux, and BSD, featuring cross-session memory, reading and writing code, Git management, command execution, built-in MiMo Auto for zero configuration start, and integration with mainstream LLM provider APIs.
Visual AI programming platform with a graphical interface for creating, editing, and debugging LLM agent workflows, supporting real-time collaboration, YAML-based version control, open-source TypeScript library integration, and scalable deployment in production environments.
Autonomous coding agent right in your IDE, capable of creating/editing files, executing commands, using the browser, and more with your permission every step of the way.
Launch & control Claude Code from anywhere. Stop being chained to your desk. The real-time command center to monitor, debug, and guide your agent—right from your phone.
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