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Top 100 AI GitHub activity AI categories AI Compare Saved AI tools Learn about AI Categories Collections Newly added Underrated this week Technology stacks Tags Licenses Compare tools About AltStack Advertise

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Created by Sushil Kumar Sah.

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LangChain alternatives

Compare 7 alternatives to LangChain. Use “Has a free option” to find tools you can try without buying a software plan. Check each card for hosting or AI usage costs.

LangChain pricing:Pricing not verified

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

Search for a tool or task, check its pricing, and open its official website. Freemium means a free plan with paid upgrades.

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Catalog updated · 13 Oct 2026

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Mem0 product interface

Mem0AI

AI Memory & Context

Pricing not verified

Persistent memory layer for AI agents and apps.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

67kstars+ 1.9k30 daysApache-2.0

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Visit official website

Agno product interface

AgnoAI

AI Agent Platforms

Pricing not verified

Model-agnostic platform for building intelligent AI agents.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

43kstars+ 52130 daysApache-2.0

USE INSTEAD OF

Visit official website

CopilotKit product interface

CopilotKitAI

AI Agent Platforms

Pricing not verified

Build AI copilots for your product in hours, not months.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

38kstars+ 62530 daysMIT

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Visit official website

Langfuse product interface

LangfuseAI

LLM Observability & Evaluation

Pricing not verified

Open source LLM engineering platform for AI-powered applications.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

36kstars+ 1.2k30 daysMIT

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Visit official website

Arize Phoenix product interface

Arize PhoenixAI

LLM Observability & Evaluation

Pricing not verified

Open-source LLM tracing & evaluation for AI optimization.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

12kstars+ 36830 daysElastic-2.0

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Visit official website

Helicone product interface

HeliconeAI

LLM Observability & Evaluation

Pricing not verified

Build reliable AI apps with comprehensive observability.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

6.2kstars+ 7030 daysApache-2.0

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Visit official website

Laminar product interface

LaminarAI

LLM Observability & Evaluation

Pricing not verified

AI-powered platform for engineering LLM products.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

3.4kstars+ 12630 daysApache-2.0

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Visit official website

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