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Langflow vs Parlant

Learn how Langflow and Parlant differ in their key features, development activity, technology stack and community adoption, so you can decide which of these ai agent platforms is best for you.

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Favicon of Langflow

Langflow

Build, deploy, and iterate on AI agents, RAG applications, and MCP servers using a drag-and-drop visual interface backed by Python.
  • Stars


    148,754
  • Forks


    9,121
  • Last commit


    4 hours ago
  • Repository age


    3 years
  • License


    MIT
  • Self-hosted


    Yes
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Screenshot of Langflow
Favicon of Parlant

Parlant

A conversational AI server that manages agent behavior through context-aware guidelines, keeping responses consistent, auditable, and aligned at scale.
  • Stars


    18,086
  • Forks


    1,537
  • Last commit


    2 days ago
  • Repository age


    2 years
  • License


    Apache-2.0
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Screenshot of Parlant

Detailed Comparison

Langflow appears to have several advantages over Parlant, particularly in popularity, maturity, licensing and features. Consider your specific needs regarding popularity, activity, technology, maturity, licensing and features when making your decision.

Langflow wins
Community & Popularity

Langflow significantly outpaces Parlant in community adoption with 148,754 stars compared to 18,086 stars on GitHub. This 8.2x difference suggests Langflow has a much larger and more active community. In terms of developer contributions, Langflow has 9,121 forks, indicating strong developer engagement.

Comparable
Development Activity

Both projects show recent activity, with Langflow last updated 4 hours ago and Parlant 2 days ago.

Comparable
Technology Stack

Both tools share common technology foundations, being built with JavaScript, CSS, Bash, Typescript, JSX, Python. However, they differ in their additional technology choices: Parlant leverages SCSS.

Langflow wins
Project Maturity

Langflow has been in development longer, starting 3 years ago, compared to Parlant which began 2 years ago. This 1.0-year head start suggests Langflow may have more mature features and established processes.

Langflow wins
Licensing

Langflow uses the MIT license, which is more permissive than Parlant's Apache-2.0 license, potentially offering greater flexibility for commercial use and integration.

Comparable
Use Cases & Features

Both tools serve similar use cases in AI Agent Platforms. However, they also have distinct specializations: Langflow also focuses on Low-Code/No-Code, LLM Application Frameworks while Parlant extends into AI Chat Interfaces, Chatbot Platforms.

Langflow wins
Hosting & Deployment

Langflow provides self-hosting options for complete data control and customization, while Parlant may be primarily cloud-based or require different deployment approaches.