AionUi is a free, open-source desktop cowork app that puts AI agents to work alongside you around the clock. It comes with a built-in agent of its own and can also host more than twenty CLI agents, including Claude Code, Codex, OpenCode, and OpenClaw, inside one cross-platform interface. The project has passed 33,000 stars on GitHub and was actively developed in October 2026.
Instead of juggling terminal windows for every agent tool you use, AionUi gives them a shared home. You can customize assistants for different jobs, team several agents up on one task, and let automations keep running 24/7 in the background. It works with any API key, needs no complicated setup, runs on macOS, Windows, and Linux, and supports remote access so you can check in on your agents from elsewhere. For office workflows, it blends chat, documents, and agent execution into a single coworking space.
AionUi is free and open source under the Apache-2.0 license. You only cover the cost of the model API keys you choose to connect to it.
AionUi is designed for developers and knowledge workers who already use several CLI agents and want one organized place to run them. If you like the power of terminal agents but prefer a visual workspace with teams, schedules, and remote check-ins, AionUi is built for you.