Best CopilotKit Alternatives in 2026

Looking for a free or open-source alternative to CopilotKit? We compared the top developer-tools tools to help you find the right fit. CopilotKit is an open-source framework for integrating AI-powered copilots into applications. It provides pre-built UI components and backend infrastructure to add conversational AI, automation, and context-aware assistance. Developers use it to create custom AI assistants that interact with users and perform actions within their apps.