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← Mastra

Alternatives

Mastra alternatives

Mastra is an open-source TypeScript framework for building AI agents with memory, tools, workflows and observability. Here are 24 similar tools on DevHunt, starting with the closest matches.

Quick answerThe best free Mastra alternative is LangChain, for general LLM app development. Pick CrewAI for coordinating multiple agents, or LlamaIndex for document-oriented retrieval.

At a glance

4 closest to Mastra
ToolBest forPricingVotesComparison
LangChainGeneral LLM app developmentFree, open source—vs Mastra →
CrewAICoordinating multiple agentsPaid, open source—vs Mastra →
LlamaIndexDocument-oriented retrievalFree, open source—vs Mastra →
AI SDKVercel-centric AI appsFree, open source—vs Mastra →

How to choose

  • For general LLM app development: LangChain (free, open source)
  • For coordinating multiple agents: CrewAI (paid, open source)
  • For document-oriented retrieval: LlamaIndex (free, open source)
  • For vercel-centric AI apps: AI SDK (free, open source)
  • For typed AI agents with built-in observability: Mastra itself

Closest alternatives

compared with Mastra
  • LangChain▲ 0 · Free

    LangChain is a broader LLM app framework for Python and JavaScript, while Mastra is TypeScript-first with built-in workflows and observability. Mastra vs LangChain →

  • CrewAI▲ 0 · Subscription

    CrewAI focuses on multi-agent orchestration but lacks Mastra's TypeScript-first SDK and built-in observability suite. Mastra vs CrewAI →

  • LlamaIndex▲ 0 · Free

    LlamaIndex provides data-centric retrieval over documents, not a full agent framework with memory and workflows. Mastra vs LlamaIndex →

  • AI SDK▲ 0 · Free

    AI SDK is a Vercel-focused TypeScript toolkit for AI apps, whereas Mastra offers a broader agent lifecycle and self-hosted platform. Mastra vs AI SDK →

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FAQ

What is the best alternative to Mastra?+

The closest Mastra alternatives are LangChain (general LLM app development), CrewAI (coordinating multiple agents) and LlamaIndex (document-oriented retrieval). AI SDK is also close. Each one links to a side-by-side comparison with Mastra.

What is the best free alternative to Mastra?+

LangChain (general LLM app development) is the closest free alternative to Mastra. LlamaIndex (document-oriented retrieval) and AI SDK (vercel-centric AI apps) are free too.

Is there an open source alternative to Mastra?+

Yes. LangChain (general LLM app development), CrewAI (coordinating multiple agents), LlamaIndex (document-oriented retrieval) and AI SDK (vercel-centric AI apps) are open source.

What is Mastra used for?+

Mastra is an open-source TypeScript framework for building AI agents with memory, tools, workflows and observability. Common uses: customer-support chat agents that remember prior interactions, internal copilots for coding, legal or finance tasks and automated multi-step business workflows (e.g., order fulfillment).

Is Mastra free?+

Mastra has a free tier and paid plans.