RAG and search: tools for developers

Retrieval-augmented tools, vector databases, embeddings and semantic search. An entry can appear under several use cases when its topics or description provide several explicit signals.

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118 entries in this view.

Tool ranking

Ranked by measured growth, normalized across sources. Raw values keep their source-specific window, shown under each tool; a change requires at least two snapshots from the last 7 days.

  1. 1

    Agent
    Active

    The Memory Layer for AI Agents - Drop-in memory infrastructure for AI agents and apps. Context that persists. Built for production.

    PythonLicense: Apache-2.0
    • agentic-memory
    • agentic-memory-system
    • agents
    • ai
    • ai-agents

    githubmeasured growthOpen source ↗

    64 675GitHub stars+396 (+0.62 %)
  2. 2

    Other
    Active

    Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, DeepSeek, and more. Simple declarative configs with command line and CI/CD integration. Used by OpenAI…

    TypeScriptLicense: MIT
    • ci
    • ci-cd
    • cicd
    • evaluation
    • evaluation-framework

    githubmeasured growthOpen source ↗

    24 797GitHub stars+146 (+0.59 %)
  3. 3

    Agent
    Active

    RAGFlow is a leading open-source Retrieval-Augmented Generation (RAG) engine that fuses cutting-edge RAG with Agent capabilities to create a superior context layer for LLMs

    GoLicense: Apache-2.0
    • agent-harness
    • agentic-ai
    • agentic-retrieval
    • agentic-search
    • ai

    githubmeasured growthOpen source ↗

    90 012GitHub stars+467 (+0.52 %)
  4. 4

    Other
    Active

    Nuwax Agent OS - An enterprise-grade AI Agent Development and Operation Platform - Providing a complete solution for agent creation and distribution, knowledge base management, model proxy, memory system, and plugin ecosystem.

    TypeScriptLicense: Apache-2.0
    • a2a
    • agent
    • agent-os
    • agent-sandbox
    • agentic

    githubmeasured growthOpen source ↗

    878GitHub stars+4 (+0.46 %)
  5. 5

    App
    Active

    User-friendly AI Interface (Supports Ollama, OpenAI API, ...)

    Python
    • ai
    • llm
    • llm-ui
    • llm-webui
    • llms

    githubmeasured growthOpen source ↗

    150 860GitHub stars+599 (+0.40 %)
  6. 6

    Other
    Active

    Build Agentic workflows, RAG pipelines, with rich AI model and tool support on one collaborative workspace. Deploy on cloud, VPC, or self-hosted, so teams move from prototype to production without rebuilding the stack.

    TypeScript
    • agent
    • agentic-ai
    • agentic-framework
    • agentic-workflow
    • ai

    githubmeasured growthOpen source ↗

    154 387GitHub stars+601 (+0.39 %)
  7. 7

    Skill
    Active

    Cognee is the open-source AI memory platform for agents. Give your AI agents persistent long-term memory across sessions with a self-hosted knowledge graph engine.

    PythonLicense: Apache-2.0
    • agent-memory
    • agent-skills
    • ai
    • ai-agents
    • ai-memory

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/topoteretes/cognee ~/.claude/skills/cognee

    30 446GitHub stars+117 (+0.39 %)
  8. 8

    Skill
    Active

    Hivemind turns your traces into reusable skills across agents

    TypeScriptLicense: Apache-2.0
    • ai
    • ai-agents
    • ai-memory
    • anthropic
    • artificial-intelligence

    githubmeasured growthOpen source ↗

    Install /plugin marketplace add activeloopai/hivemind

    1 594GitHub stars+6 (+0.38 %)
  9. 9

    Other
    Active

    Qdrant - High-performance, massive-scale Vector Database and Vector Search Engine for the next generation of AI. Also available in the cloud https://cloud.qdrant.io/

    RustLicense: Apache-2.0
    • ai-search
    • ai-search-engine
    • embeddings-similarity
    • hnsw
    • hybrid-search

    githubmeasured growthOpen source ↗

    34 377GitHub stars+127 (+0.37 %)
  10. 10

    Other
    Active

    Stop renting your intelligence. Own it with AnythingLLM. Everything you need for a powerful local-first agent experience

    JavaScriptLicense: MIT
    • agent-computer
    • agent-harness
    • agent-orchestration
    • agentic-ai
    • ai-agents

    githubmeasured growthOpen source ↗

    65 583GitHub stars+236 (+0.36 %)
  11. 11

    Model
    Active

    21 Lessons, Get Started Building with Generative AI

    Jupyter NotebookLicense: MIT
    • ai
    • azure
    • chatgpt
    • dall-e
    • generative-ai

    githubmeasured growthOpen source ↗

    119 116GitHub stars+395 (+0.33 %)
  12. 12

    App
    Active

    Open Source AI Platform - AI Chat with advanced features that works with every LLM

    Python
    • ai
    • ai-chat
    • chatgpt
    • chatui
    • enterprise-search

    githubmeasured growthOpen source ↗

    31 916GitHub stars+101 (+0.32 %)
  13. 13

    Agent
    Active

    Portable AI agent runtime for the JVM. One @Agent class runs on Spring AI, LangChain4j, Anthropic, or 9 more behind one SPI. Token streaming, tool calls, human approvals, and governance over WebSocket, SSE, gRPC, or WebTransport/HTTP3.…

    JavaLicense: Apache-2.0
    • a2a
    • acp
    • agentic-ai
    • ai-agents
    • anthropic

    githubmeasured growthOpen source ↗

    3 808GitHub stars+12 (+0.32 %)
  14. 14

    MCP
    Active

    🔥 MaxKB is an open-source platform for building enterprise-grade agents. 强大易用的开源企业级智能体平台。

    PythonLicense: GPL-3.0
    • agent
    • agentic-ai
    • chatbot
    • deepseek-r1
    • knowledgebase

    githubmeasured growthOpen source ↗

    22 710GitHub stars+70 (+0.31 %)
  15. 15

    MCP
    Active

    Config-driven engine that turns JSON into production-grade AI agents. Multi-agent orchestration, 12+ LLM providers, MCP/A2A protocols, RAG, persistent memory, and enterprise compliance (EU AI Act, GDPR, HIPAA). Built on Quarkus.

    JavaLicense: Apache-2.0
    • a2a
    • ai-agents
    • ai-orchestration
    • chatbot
    • conversation-memory

    githubmeasured growthOpen source ↗

    372GitHub stars+1 (+0.27 %)
  16. 16

    Agent
    Active

    The agent engineering platform.

    PythonLicense: MIT
    • agents
    • ai
    • ai-agents
    • anthropic
    • chatgpt

    githubmeasured growthOpen source ↗

    145 605GitHub stars+391 (+0.27 %)
  17. 17

    Agent
    Active

    Incremental engine for long horizon agents 🌟 Star if you like it!

    RustLicense: Apache-2.0
    • agentic-data-framework
    • ai
    • ai-agents
    • change-data-capture
    • codebase-intelligence

    githubmeasured growthOpen source ↗

    11 459GitHub stars+29 (+0.25 %)
  18. 18

    Other
    Active

    The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.

    TypeScriptLicense: Apache-2.0
    • ai
    • alternative
    • auth
    • database
    • deno

    githubmeasured growthOpen source ↗

    108 815GitHub stars+271 (+0.25 %)
  19. 19

    Other
    Active

    Milvus is a high-performance, cloud-native vector database built for scalable vector ANN search

    GoLicense: Apache-2.0
    • anns
    • cloud-native
    • diskann
    • distributed
    • embedding-database

    githubmeasured growthOpen source ↗

    45 962GitHub stars+106 (+0.23 %)
  20. 20

    Agent
    Active

    FastGPT is a knowledge-based platform built on the LLMs, offers a comprehensive suite of out-of-the-box capabilities such as data processing, RAG retrieval, and visual AI workflow orchestration, letting you easily develop and deploy complex…

    TypeScript
    • agent
    • claude
    • deepseek
    • llm
    • mcp

    githubmeasured growthOpen source ↗

    29 561GitHub stars+67 (+0.23 %)
  21. 21

    Other
    Active

    Open-source AI orchestration framework for building context-engineered, production-ready LLM applications. Design modular pipelines and agent workflows with explicit control over retrieval, routing, memory, and generation. Built for…

    PythonLicense: Apache-2.0
    • agent-framework
    • agentic-ai
    • agentic-rag
    • agents
    • ai

    githubmeasured growthOpen source ↗

    26 408GitHub stars+56 (+0.21 %)
  22. 22

    Other
    Active

    【低代码v2.0，一句话即可生成整个系统】企业级AI低代码平台，一键生成前后端代码甚至整个系统。 AI Skills 一句话画流程、设计表单、生成报表、大屏。内置 AI应用平台涵盖：AI聊天、知识库、流程编排、MCP插件等，兼容主流大模型。引领AI低代码「Skills 生成 → 在线配置 → 代码生成 → 手工合并->AI修改」开发模式，解决 Java 项目 90% 重复工作，提高效率又不失灵活。

    JavaLicense: Apache-2.0
    • activiti
    • agent
    • ai
    • antd
    • claude-code

    githubmeasured growthOpen source ↗

    47 624GitHub stars+98 (+0.21 %)
  23. 23

    Other
    Active

    High-performance data engine for AI and multimodal workloads. Process images, audio, video, and structured data at any scale

    RustLicense: Apache-2.0
    • ai-engineering
    • ai-pipeline
    • arrow
    • artificial-intelligence
    • big-data

    githubmeasured growthOpen source ↗

    5 741GitHub stars+10 (+0.17 %)
  24. 24

    Other
    Active

    Sim is the collaborative workspace to build, deploy, and monitor AI agents and workflows. Used by 100,000+ builders.

    TypeScriptLicense: Apache-2.0
    • agent-workflow
    • agentic-workflow
    • agents
    • ai
    • aiagents

    githubmeasured growthOpen source ↗

    29 537GitHub stars+48 (+0.16 %)

Learning resources

Ranked by measured growth, normalized across sources. These resources remain available separately and do not take part in the main tool ranking.

  1. 1

    awesome-llm-apps

    Skill
    ActiveOpen source ↗

    100+ AI Agents, Agent Skills and RAG Apps - Free and Open Source.

    PythonLicense: Apache-2.0
    • agents
    • llms
    • python
    • rag
    github

    Install git clone https://github.com/Shubhamsaboo/awesome-llm-apps ~/.claude/skills/awesome-llm-apps

    Resourcemeasured growth
    135 960GitHub stars+648 (+0.48 %)