LangChain

Framework for building agents and LLM applications.

Features

LangChain is open source: free to use and self-hostable.

Updated on October 31, 2026

by CrewAI

Open source

Orchestrates teams of collaborating AI agents.

by Zapier

Freemium

Automates 8,000+ apps and builds no-code AI agents.

by Celonis

Freemium

Visual automation scenarios with AI modules and agents.

by n8n

Open source

Open-source automation and AI agents you can self-host.

by Manus

Freemium

General autonomous agent: research, analysis, websites and reports.

by OpenAI

Free

Web browser with ChatGPT built in, able to act on pages.

What is LangChain?

LangChain (LangChain) : Framework for building agents and LLM applications.

Is LangChain free?

LangChain is open source: free to use and self-hostable.

What are the alternatives to LangChain?

CrewAI, Zapier, Make, n8n, Manus, ChatGPT Atlas.