Coding & Developer Tools
Codex alternatives
33 alternatives to Codex (OpenAI) from the Coding & Developer Tools category of the index.
- 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
- Amp (Sourcegraph) — Agentic coding tool from Sourcegraph that runs locally or in remote orbs, writing and shipping code from the terminal, editors, web, and phone. Paid
- 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) — Enterprise AI coding assistant from Sourcegraph with whole-codebase context; free and Pro tiers ended in 2025, succeeded for individuals by Amp. Paid
- 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
- Factory (Factory AI) — Agent-native software development platform from Factory AI that uses Droids to plan, write, test, and ship code across the software lifecycle. 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. The free plan gives everyone 30M tokens every day, with the just-released DeepSeek-V4-Flash-0731 already live on the platform. Open (open weights/source)
- Muse Code (Meta) — Meta's terminal-native coding agent, now generally available, that plans, edits, and coordinates multi-agent engineering work with Muse Spark models. Paid
- 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) — Open-source agentic development environment built on an AI terminal, orchestrating built-in and external coding agents. Freemium
- Windsurf (Cognition) — 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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