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CopilotKit vs Langflow

Side-by-side comparison with live GitHub signals. Last updated June 6, 2026.

C

CopilotKit

React/Angular frontend SDK for AI agents with generative UI — 29K+ stars

OSSFree
32.9Ktoday163
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L

Langflow

Visual framework for building and deploying AI agents — 145K+ stars

OSSFree
149.3Ktoday323
Visit GitHub
MetricCopilotKitLangflow
GitHub Stars32.9K149.3K
Contributors163323
Last CommitJun 6, 2026Jun 6, 2026
Open Issues531929
Licenseopen-sourceopen-source
Pricingopen-sourceopen-source
Free TierYesYes
Categoryframeworksframeworks
TrendingNoNo

Shared Tags

open-source

Only in CopilotKit

reacttypescriptgenerative-uiagent-frameworkfrontendhuman-in-the-loop

Only in Langflow

visual-builderno-coderagmulti-agentpython

About CopilotKit

CopilotKit is a full-stack SDK for building agentic applications with generative UI. AI agents can dynamically render React components, manage shared application state, and pause for human-in-the-loop confirmation. Maintains the AG-UI Protocol (adopted by Google, LangChain, AWS, Microsoft) for standardized agent-frontend communication. Supports React and Angular frontends with Python and TypeScript backends. Integrates with LangGraph, CrewAI, and any LLM provider.

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About Langflow

Langflow is a visual framework for building multi-agent and RAG applications. Its drag-and-drop interface lets you create complex agent workflows without code, while still allowing Python customization. Supports all major LLM providers, vector stores, and tools. Export flows as APIs with one click. The most popular visual agent builder.

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