Devin Desktop (formerly Codeium) vs Refraction

Devin Desktop is an AI coding environment where you delegate tasks to agents that write code, run tests, and open pull requests while you review from a built-in IDE. The editor ships with syntax highlighting, autocomplete, and debugging tools, so you can jump into any agent-generated change without switching apps. It runs on macOS today with cloud agents (Devin Cloud) available on paid plans.

The product traces back to Codeium, a free autocomplete plugin for VS Code and 40+ editors, which grew into the Windsurf IDE before Cognition acquired it in 2025 and rebranded the app as Devin Desktop in 2026. That lineage matters because Devin Desktop still supports the Agent Client Protocol, letting you swap between Devin Local, Claude, Codex, and other agents in one surface rather than locking you into a single model vendor.

Individual developers who want agent-assisted coding without leaving their editor, engineering teams that need shared sessions and centralized billing, and enterprises evaluating SAML SSO with VPC deployment are the target users. The free tier covers light agent usage with unlimited Tab completions for anyone testing the workflow.

Improve and generate code with AI. Refactor code, create documentation, and write unit tests automatically. Simply paste your code, select a language or framework, and click "Generate" to see the magic happen. Refraction is a code generation tool for developers. It harnesses AI to generate code for you. Use it to produce unit tests, documentation, and refactor code.