Open Source Projects tagged "Langchain"
A curated collection of the best open source projects tagged "Langchain". Each listing includes a website screenshot along with a detailed review of its features.
LLM gateway for auth, load balancing, and spend tracking
Stars
Stars growing over the last 30 days62,891Last commit
8 hours agoLicense
Unknown
Acts as a unified proxy across 100+ LLMs, normalizing them to the OpenAI format while handling virtual keys, budgets, rate limits, fallbacks, and cost tracking.
Open Source Alternative to:
Build AI copilots for your product in hours, not months
Stars
38,564Last commit
22 hours agoLicense
MIT
Integrate production-ready AI copilots into any product quickly and easily with CopilotKit's open-source platform.
Open Source Alternative to:
Open source LLM engineering platform for AI-powered applications
Stars
Stars growing over the last 30 days37,139Last commit
13 hours agoLicense
MIT
Langfuse provides tracing, evaluations, prompt management, and analytics to debug and improve LLM applications.
Open Source Alternative to:
Visual builder for AI agents and LLM workflows
Stars
55,562Last commit
3 months agoLicense
Apache-2.0
Open source platform for building AI agents, chatbots, and multi-agent systems using a drag-and-drop interface, with support for 100+ LLMs and RAG.
Open Source Alternative to:
AI assistant that enhances enterprise knowledge management
Stars
23,117Last commit
2 days agoLicense
GPL-3.0
Open-source AI solution combining RAG pipelines, workflow automation, and multi-model support for intelligent enterprise knowledge management and customer service.
Open Source Alternative to:
Privacy-first knowledge base with any AI model you choose
Stars
16,804Last commit
13 hours agoLicense
Apache-2.0
Self-hostable NotebookLM alternative that lets teams build searchable knowledge bases from diverse sources, with support for any LLM and no data limits.
Open Source Alternative to:
Build powerful AI agents with cutting-edge LLM technology
Stars
14,985Last commit
2 days agoLicense
MIT
A comprehensive platform for creating AI agents with intuitive tools, extensive integrations, and enterprise-grade features powered by the latest language models.
Open Source Alternative to:
Open-source LLM tracing & evaluation for AI optimization
Stars
Stars growing over the last 30 days12,199Last commit
11 hours agoLicense
Elastic-2.0
Open-source platform for LLM tracing, evaluation, and optimization. Features automatic instrumentation, prompt playground, and real-time AI application monitoring.
Open Source Alternative to:
Complete production stack for AI teams
Stars
13,341Last commit
6 months agoLicense
MIT
Comprehensive AI platform with gateway, observability, guardrails, and prompt management. Access 1,600+ LLMs via unified API with enterprise-grade security.
Open Source Alternative to:
The tensor database for AI data
Stars
9,265Last commit
6 months agoLicense
Apache-2.0
Deep Lake is an open-source database for storing, querying and managing complex AI data like images, audio, and embeddings.
Open Source Alternative to:
Build reliable AI apps with comprehensive observability
Stars
6,273Last commit
11 days agoLicense
Apache-2.0
Open-source platform for logging, monitoring, and debugging LLM applications. Route, debug, and analyze AI apps with comprehensive observability tools.
Open Source Alternative to:
Enterprise workplace AI with data you own and control
Stars
Stars growing over the last 30 days4,045Last commit
8 hours agoLicense
Apache-2.0
Self-hostable enterprise AI platform that unifies business data across apps, powers a knowledge graph for cited answers, and lets teams build AI agents across their stack.
Open Source Alternative to:
Monitor, debug, and scale LLM applications with ease
Stars
Stars growing over the last 30 days2,965Last commit
19 hours agoLicense
Apache-2.0
Open-source observability platform for GenAI and LLM applications. Real-time monitoring, distributed tracing, prompt management, and AI model evaluation built on OpenTelemetry.
Open Source Alternative to:
InfluxDB – The purpose-built time series platform for high-velocity ingestion and real-time queries at scale.
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