Codex alternatives

• Aider (Aider) — Open-source command-line tool for AI pair programming that edits code in your local git repository. Open (open weights/source)
• Amazon Q Developer (Amazon Web Services) — AWS's AI coding assistant (formerly CodeWhisperer) for code generation, security scans, and AWS tasks. Freemium
• Augment Code (Augment Computing) — AI coding assistant and agent focused on large codebases, with context retrieval across a team's entire repository. Paid
• Base44 (Base44 (Wix)) — AI app builder for creating full web applications from natural-language prompts, acquired by Wix in 2025. Freemium
• Bolt.new (StackBlitz) — In-browser AI agent that builds, runs, and deploys full-stack web apps from natural-language prompts. Freemium
• Claude Code (Anthropic) — Anthropic's agentic coding tool that works in the terminal, editing files, running commands, and completing tasks across a codebase. Paid
• Cline (Cline) — Open-source autonomous coding agent for VS Code that can edit files, run commands, and use the browser with your approval. Open (open weights/source)
• CodeRabbit (CodeRabbit) — AI code-review assistant that reviews pull requests and suggests changes. Freemium
• Cody (Sourcegraph) — AI coding assistant from Sourcegraph that uses whole-codebase context for chat and completions. Freemium
• Continue (Continue) — Open-source AI code assistant extension for VS Code and JetBrains, acquired by Cursor with standalone development wound down. Open (open weights/source)
• Cursor (Anysphere) — AI-powered code editor that provides autocompletion, chat, and codebase-aware edits for software development. Freemium
• Devin (Cognition AI) — Autonomous AI software engineer that plans and completes end-to-end development tasks in its own sandboxed workspace. Paid
• Gemini CLI (Google) — Google's open-source terminal agent that brings Gemini models to the command line for coding, research, and task automation. Open (open weights/source)
• GitHub Copilot (GitHub (Microsoft)) — AI pair programmer integrated into popular editors, offering code completion, chat, and agent features. Freemium
• Google Antigravity (Google) — Agent-first development environment from Google where Gemini-powered agents plan, write, and verify code across editor, terminal, and browser. Free
• JetBrains AI Assistant (JetBrains) — AI assistant integrated across JetBrains IDEs for code completion, chat, and refactoring. Freemium
• Jules (Google) — Google's asynchronous coding agent that clones a repository, plans changes, and completes tasks like bug fixes in the background. Freemium
• Kiro (Amazon Web Services) — Agentic IDE from AWS that turns prompts into executable specs and coordinates AI agents from prototype to production. Freemium
• Lovable (Lovable) — AI app builder that generates and edits full-stack web applications from natural-language prompts. Freemium
• MonkeyCode (Chaitin Tech (长亭科技)) — Open-source, self-hostable AI coding assistant from Chaitin Tech, compatible with multiple models and offering a cloud development environment. Open (open weights/source)
• OpenHands (All Hands AI) — Open-source platform for AI software development agents that can modify code, run commands, and browse the web (formerly OpenDevin). Open (open weights/source)
• Qoder (Alibaba) — Agentic coding platform from Alibaba with an AI IDE and CLI that handle repository-wide context, delegated tasks, and code review. Freemium
• Qodo (Qodo) — Code integrity platform (formerly CodiumAI) for AI-generated tests, reviews, and code suggestions. Freemium
• Replit (Replit) — Browser-based coding platform with an AI agent that builds and deploys apps from prompts. Freemium
• Tabnine (Tabnine) — AI code completion assistant that suggests code across many editors, with privacy-focused and self-hosted options. Freemium
• Trae (ByteDance) — AI-powered integrated development environment from ByteDance that assists with writing and editing code. Free
• v0 (Vercel) — Vercel's generative UI tool that turns text and image prompts into React and Tailwind components and full apps. Freemium
• Warp (Warp) — AI-powered terminal that assists with commands and runs multi-step tasks from the command line. Freemium
• Windsurf (Windsurf) — Agentic AI code editor (formerly Codeium) with an autonomous 'Cascade' workflow for multi-step coding tasks. Freemium
• Zed (Zed Industries) — Open-source, high-performance code editor with built-in AI assistance and collaborative editing. Open (open weights/source)

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