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LLM Application Frameworks

Browse curated open source projects in this category.

11 projects
Langflow icon

Langflow

Open

Low-code platform for building agentic and RAG applications with drag-and-drop components, Python customization, and support for any LLM or vector database.

11/07/2026
9,654
151,688
Dify icon

Dify

Open

Create, deploy, and manage AI-native apps effortlessly with a user-friendly platform that combines LLMs and your data

11/07/2026
23,412
148,514
Mem0 icon

Mem0

Open

Universal memory layer for LLM applications that learns from user interactions, reduces token costs by 80%, and delivers personalized AI experiences.

11/07/2026
7,050
60,622
CopilotKit icon

CopilotKit

Open

Integrate production-ready AI copilots into any product quickly and easily with CopilotKit's open-source platform.

11/07/2026
4,435
35,921
Langfuse icon

Langfuse

Open

Langfuse provides tracing, evaluations, prompt management, and analytics to debug and improve LLM applications.

11/07/2026
3,262
30,930
FastGPT icon

FastGPT

Open

FastGPT is a free, open-source platform for creating AI-powered knowledge bases with data processing, model invocation, and visual workflows.

10/07/2026
7,213
28,906
featul icon

featul

Ad

Collect feedback, plan with roadmaps, and share updates all in a simple, privacy-first platform.

Visit featul
Supermemory icon

Supermemory

Open

Add persistent memory to LLM apps with millisecond recall times. Store, retrieve, and personalize user data across sessions with enterprise-grade security.

11/07/2026
2,464
28,319
Arize Phoenix icon

Arize Phoenix

Open

Open-source platform for LLM tracing, evaluation, and optimization. Features automatic instrumentation, prompt playground, and real-time AI application monitoring.

11/07/2026
978
10,508
Laminar icon

Laminar

Open

Laminar is an open-source platform that helps collect, understand, and utilize data for building high-quality LLM applications.

10/07/2026
217
3,086
Trieve icon

Trieve

Open

Trieve offers an all-in-one solution for search, recommendations, and RAG with automatic continuous improvement based on user feedback.

25/01/2026
249
2,694
OpenLIT icon

OpenLIT

Open

Open-source observability platform for GenAI and LLM applications. Real-time monitoring, distributed tracing, prompt management, and AI model evaluation built on OpenTelemetry.

10/07/2026
321
2,587