DeepYard

CopilotKit vs Langflow

Side-by-side comparison built from DeepYard's structured catalog. Content updated Aug 21, 2026.

Direct Answer

CopilotKit suits teams needing open-source access, typescript focus, and 36,945 GitHub stars in current listing data. Langflow suits teams needing open-source access, visual builder focus, and 153,543 GitHub stars in current listing data. This summary reflects catalog metadata only for decision support, not independent testing.

What this comparison weighs

  • Pricing and free-tier availability
  • License model and deployment fit
  • GitHub adoption and contributor depth
  • Catalog tags, integrations, and supported workflows
C

CopilotKit

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

OSSFree
36.9Ktoday199
Visit GitHub
L

Langflow

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

OSSFree
153.5Ktoday351
Visit GitHub
MetricCopilotKitLangflow
GitHub Stars36.9K153.5K
Contributors199351
Last CommitAug 22, 2026Aug 22, 2026
Open Issues356968
Licenseopen-sourceopen-source
Pricingopen-sourceopen-source
Free TierYesYes
Categoryframeworksframeworks
TrendingNoNo

Choose CopilotKit if you need

  • • CopilotKit stands out for Typescript workflows that are not listed for Langflow.
  • • CopilotKit is the stronger pick when Generative Ui matters because that capability is listed only on its profile.
  • • CopilotKit is the cleaner fit if you specifically need React workflows from the catalog tags.

Choose Langflow if you need

  • • Langflow is the stronger pick when Visual Builder matters because that capability is listed only on its profile.
  • • Langflow shows broader GitHub adoption with 153,543 stars versus 36,945 for CopilotKit.
  • • Langflow has a larger visible contributor base (351 vs 199).

Meaningful differences

  • • Workflow emphasis: CopilotKit highlights Typescript, while Langflow highlights Python.
  • • GitHub adoption: CopilotKit shows 36,945 stars versus 153,543 for Langflow.
  • • Contributor count: CopilotKit lists 199 contributors and Langflow lists 351.

Shared capabilities

  • • Open Source

Shared Tags

open-source

Only in CopilotKit

reacttypescriptgenerative-uiagent-frameworkfrontendhuman-in-the-loop

Only in Langflow

visual-builderno-coderagmulti-agentpython

Limitations and evidence

  • • DeepYard compares structured public metadata; this is not an independent benchmark unless a test record is shown.
  • • Signals such as stars, contributors, and last commit indicate public activity, not purchase fit or runtime quality.
  • • Pricing and feature coverage reflect the stored listing snapshot and may lag vendor changes between refreshes.

Source links

Manifest content date: 2026-08-21

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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