Alternatives to Codex by OpenAI
21 tools that compete with or replace Codex by OpenAI. Ranked by direct product-type match — not generic category overlap.
Codeium
Free AI code assistant and IDE with autonomous cloud agents.
Freemium
Warp
Agentic development environment with AI-native terminal and cloud agent orchestration.
Freemium
CodeRabbit
AI code review that cuts bugs in half and speeds up PRs.
Freemium
Devin
Autonomous AI software engineer that codes, debugs, and deploys end-to-end.
Paid
Tabnine
Enterprise AI code assistant with private deployment and organizational context.
Freemium
GitHub Copilot
AI pair programmer that suggests code and answers questions in your editor.
Freemium
Lovable
AI App Builder: Vibe code apps & websites by chatting with AI
Freemium
Snyk
Developer-first security platform to find and fix vulnerabilities across code, dependencies, containers, and IaC.
Freemium
Windsurf
Agentic AI IDE with Cascade, Devin integration, and multi-model support.
Freemium
Sourcegraph Cody
AI coding assistant with deep codebase context from Sourcegraph.
Freemium
Blackbox AI
Autonomous multi-agent coding platform with frontier & open-source models.
Contact Sales
Phind
AI search engine for developers with code-first answers and source citations
Freemium
Anima
AI design-to-code platform for building websites and apps from Figma
Freemium
Locofy
Convert designs to code instantly with AI-powered frontend development.
Freemium
Gemini
Google's multimodal AI assistant with Gemini Intelligence across apps and devices.
Freemium
Pieces for Developers
On-device AI that remembers everything you do across apps.
Freemium
Bolt.new
Build websites & apps by chatting with AI — the #1 vibe coding tool
Freemium