The best CrewAI alternatives
8 tools that do a similar job to CrewAI, 8 of them open source. Each entry says what it does and who it suits, so you can pick the one that fits instead of the most famous.
You're replacing
CrewAIPython framework for building teams of role-playing AI agents that work together on tasks.
- 1
LangGraph
Open source · MIT · ★ 44.3k
A Python framework for building long-running agents that keep state and can resume after failures.
Best for: Python developers building multi-step AI agents that must survive failures or long waits; Teams that want fine-grained control over agent state and execution flow
- 2
LlamaIndex
Open source · MIT · ★ 52.8k
Python framework for building LLM apps that query your own documents and data.
Best for: Python developers building retrieval-augmented generation (RAG) apps over private documents; Teams wanting a modular toolkit where they can swap LLM, embedding and vector store providers
- 3
Semantic Kernel
Open source · MIT · ★ 28.7k
Open-source SDK for building AI agents and multi-agent apps in Python, .NET and Java.
Best for: Developers already using Azure OpenAI or OpenAI who want a structured SDK for agents; Teams working in .NET, Python or Java who want one framework across languages
- 4
PageIndex
Open source · MIT · ★ 40k
Lets an AI find answers in long documents by reading a table-of-contents-style tree, not vector search.
Best for: Developers building question-answering over long PDFs such as annual reports or manuals; Teams who want retrieved answers to be traceable to explicit sections of a document
- 5
Stagehand
Open source · MIT · ★ 25.9k
TypeScript, Python and Go SDK for letting AI control a web browser to act on and extract data from sites.
Best for: Developers building browser agents that must work on sites they do not control; Teams extracting structured data from web pages that lack an API
- 6
OpenAI Agents SDK
Open source · MIT · ★ 30.5k
A Python SDK for building AI agents that use tools, hand off tasks, and keep conversation history.
Best for: Python developers building multi-step AI workflows; Teams that want agents to call tools and delegate work to other agents
- 7
Microsoft Agent Framework
Open source · MIT · ★ 14.5k
A Microsoft framework for building and running AI agents and multi-agent workflows in Python and .NET.
Best for: Developers building agents or multi-agent workflows they plan to run in production; Teams that need orchestration beyond a single prompt or stateless chat loop
- 8
CopilotKit
Open source · MIT · ★ 38.5k
A TypeScript toolkit for building chat and generative UI on top of AI agents in web, mobile, and chat apps.
Best for: Developers adding an AI assistant or agent interface to a React or Next.js app; Teams who want one agent backend to serve a web app, a mobile app, and Slack or Teams
How we pick: tools in the same category that solve the same problem, projects that name each other as alternatives, and open-source projects that describe themselves as an alternative to CrewAI. We don't take payment for placement.