Open Source Code assistant AI tools

OpenAI Codex CLI is a terminal-based, open-source coding agent that uses natural language to automate development tasks like code generation, testing, refactoring, and codebase understanding, with secure sandboxed execution and Git integration.

Bolt.new is an AI-powered development agent that allows users to build, edit, run, and deploy full-stack applications directly from their browser without local setup. It provides complete control over the development environment, making web development seamless and AI-driven.

Qwen-Code is an AI-driven coding assistant designed for developers. It enhances code understanding, automates tasks like pull requests, generates unit tests, and improves documentation, making it suitable for both enterprise and small-team development.

Pi.dev is a terminal-based coding agent for developers and teams, offering TUI, RPC/SDK modes, extensible TypeScript modules and packages, multi-provider model authentication, session/context management, RAG/memory primitives, and CLI tooling for automation and integration.

Reasonix.io is a terminal-native AI coding agent that leverages Deepseek’s byte-stable prefix cache to achieve 90%+ cache hits, slashing input-token costs to roughly one-fifth. It runs as a single Go binary with no Node runtime, offering persistent sessions, sandboxed plan mode, and secure local code interaction via stdio, SSE, or HTTP.

Aider is an AI-powered pair programming tool that helps developers collaborate with LLMs for editing, refactoring, and debugging code within Git repositories. It supports multiple languages and integrates with IDEs and editors for real-time updates.

Roo Code is an AI-powered coding assistant that integrates with VS Code, enabling developers to automate tasks, execute commands, and optimize code. It supports multiple AI models, customizable roles, and adaptive autonomy for efficient software development.

open-codereview.ai is a privacy-first AI code review tool that generates precise line-level comments using LLMs, supporting multiple model providers and 10+ languages. It combines deterministic engineering with intelligent agents to handle large changesets, detect risks, and ensure accurate feedback without exposing code.

JCode is an open-source terminal coding agent built with Rust, designed to revolutionize how we interact with AI. It intelligently scales test time through swarms, optimizes performance, and allows for self-development.

Bolt.diy is an open-source AI-powered platform for developing, running, and deploying full-stack web applications using multiple LLMs. It features an integrated terminal, version control, and seamless model integration, making AI-assisted coding more efficient and flexible.

Kilo Code is an open-source AI agent extension for VS Code that enhances coding efficiency by generating code, automating tasks, and providing intelligent suggestions. It supports real-time developer assistance and integrates with multiple AI models for future expansion.

This is an open source VS Code extension that offers chat, code generation, editing, explanation, test generation, bug finding, and error diagnosis features using AI.

An AI-powered code-writing assistant that comprehends data content available on GitHub.

CodeGeeX is a code generation model on Hugging Face's Space that uses THUDM for generating code.

GPT Engineer is an open source AI tool that generates code based on user input and provides a simple and flexible user experience.

Genia is an open-source engineering AI team member & collaborator - Seamless integration, Enterprise-grade tools & High-security standards - Enhanced collaboration via Slack.

OpenDevin is an open-source project replicating and enhancing Devin, an AI engineer for software tasks. It offers a sandboxing environment for code execution, integrating a chat interface and browser for user-friendly development. Aimed at simplifying software engineering, it welcomes contributions for research and development.

Cline is an autonomous coding agent integrated into your IDE, enhancing software development through precise file management, command execution, and web interaction with a focus on security and user oversight.

Devstral 2 and Devstral Small 2 are open-source coding models designed for autonomous code automation and development, offering state-of-the-art performance and cost-efficiency.

agentica is an open-source AI coding assistant and IDE offering code completion, generation, debugging, review, and PR workflows. Supports standalone IDE and VS Code, local/cloud/OpenAI-compatible models, API key routing, self-hosting and extensible integrations.

Modo IDE is an open-source desktop AI IDE that uses a spec-driven workflow to turn prompts into requirements, code, and persistent tasks. It features a prompt-to-code pipeline with multi-LLM support, integrated AI chat, and MCP tool integration for structured, reproducible development.

little-coder is a Pi-based coding agent for running 5–25 GB local LLMs via llama.cpp or Ollama, offering Python/Node CLIs and TypeScript extensions, reproducible benchmarks, build/serve guides, and tools for local code generation, on-device development, and evaluation.

DeepSeek-TUI is a terminal-native coding agent that provides a keyboard-driven interface for file editing, shell execution, web search, and Git management. It leverages Deepseek v4 with 1M-token context windows, real-time chain-of-thought streaming, and multi-agent orchestration for large-scale code analysis and development workflows.

Kimi Code CLI is an intelligent command-line assistant for developers and DevOps, unifying CLI search, guides, config references, release notes, and LLM-assisted command suggestions into a customizable, searchable Markdown docs workflow with English and Simplified Chinese support.