Search & Knowledge Management46 / 72 projects

Build your personal knowledge base with Trilium Notes

Your AI second brain. Self-hostable. Get answers from the web or your docs. Build custom agents, schedule automations, do deep research. Turn any online or local LLM into your personal, autonomous AI (gpt, claude, gemini, llama, qwen, mistral). Get started - free.

Vane is an AI-powered answering engine.

Capture first. Organize later. A local-first Markdown app that turns scattered records into clear notes with AI.

Athens is no longer maintainted. Athens was an open-source, collaborative knowledge graph, backed by YC W21

Mobile first Note Taking integrated with Git

🔍 AI search engine - self-host with local or cloud LLMs

Personal AI Notebooks. Organize files & webpages and generate notes from them. Open source, local & open data, open model choice (incl. local).

AI-powered cross-platform e-book reader with semantic search, RAG chat, local vector store, notes, TTS, and WebDAV sync.

TidGi is an privacy-in-mind, automated, auto-git-backup, freely-deployed knowledge management Desktop note app, based on Tiddlywiki, with REST API for web-clipping and Anki connect. 「 太记 」是一个基于「 太微 TiddlyWiki 」的知识管理桌面应用，能保护隐私内容、高级自动化、自动Git云备份、部署为博客，且可通过RESTAPI与Anki等应用连接。（迭代开发中欢迎试用，开发进度见下方链接）(Under active development, see website below for details)

Your own search engine

Knowledge is a tool for saving, searching, accessing, exploring and chatting with all of your favorite websites, documents and files.

A modular and comprehensive solution to deploy a Multi-LLM and Multi-RAG powered chatbot (Amazon Bedrock, Anthropic, HuggingFace, OpenAI, Meta, AI21, Cohere, Mistral) using AWS CDK on AWS

🔎 Search the information available on a webpage using natural language instead of an exact string match.

如影随形 · 本地优先桌面工作日志：富文本记录、语义检索、工作台总结/问答；模型自配，数据留在本机。 Local-first desktop work journal—rich logs, semantic search, AI summary & Q&A. BYO models, data stays yours.

Map drawing and topic visualization for your wiki

Lumina Note - A modern Markdown note-taking app with live preview, bidirectional links, and AI assistant

Search for the agentic web.

Framework and javascript free privacy respecting meta search engine

A local-first and universal knowledge graph, personal search engine, and workspace for your life.

The open source Meme Search Engine and Finder. Free and built to self-host locally with Python, Ruby, and Docker.

Open-source, self-hosted alternative to NotebookLM. Chat with your documents, generate audio summaries, and ground AI in your own sources—built with Supabase and N8N on a React frontend.

An open-source AI content search engine designed specifically for content creators. Supports extraction of text, images, and short videos. Allows full local deployment (web app, RAG server, LLM server). Supports multi-modal RAG content Q&A.

🔗 Semantic MediaWiki turns MediaWiki into a knowledge management platform with query and export capabilities

Offline semantic Text-to-Image and Image-to-Image search on Android powered by quantized state-of-the-art vision-language pretrained CLIP model and ONNX Runtime inference engine

Local-first AI-powered document intelligence platform for investigative journalism

An experimental personal knowledge base with a focus on connections

Quake is a knowledge management meta-framework for geeks, using metadata + Transflow to CRUD data, Git + markdown for content management, and Web Components for front-end customization.

A math-aware search engine.

A cutting-edge search engine project tailored specifically for the AI product

State of the art OSINT tool. | A powerful open-source alternative to other face search engines.

A library-science-inspired personal knowledge management system with LLM agents

Smart local file search app that understands your files

更懂你的 AI 工作伙伴：把 Claude Code / Codex 等 AI runtime 接到你的 Obsidian 知识库，读你的积累做研究、分析、创作，产出回写入库，构建 LLM Wiki 与知识图谱。本地运行，数据永不上传 | The AI work partner that knows you better: plug Claude Code & Codex into your Obsidian vault — research, analyze, create, write results back, build an LLM Wiki & knowledge graph. Local-first, data stays yours

Edit Videos and Design Images with Claude code or Codex

Hybrid semantic search and AI curation for your vault. Combines BM25 keyword, on-device WebGPU embeddings, and fuzzy title matching. Multilingual, with particularly strong Chinese/CJK support. Opt-in AI features auto-generate note descriptions and topic-grouped Maps of Content. Local-first, no API keys.

Open-source, real-time collaborative AI canvas - notes, mini-apps, and agents on one infinite board.

Knowledge compiler — turns scattered links, files, and bookmarks into a living wiki that compounds with every new source.

A Telegram bot that proves you don't need a body to have a personality. Works with any OpenAI-compatible LLM; agentic tools, MCP, RAG over your files, memory, vision, voice and image generation.

BokeBox: multi-source private AI podcast studio — videos/links/articles/notes → spoken episodes. Custom persona & voice, MCP + pluggable sources, self-hosted. BokeBox（播匣）：内容进匣，AI 成播；多源输入、MCP、插件源、私有部署、订阅。

Personal Knowledge OS — Capture → Distill → Compile → Serve. Self-hosted knowledge data platform with AI agents, Telegram bot, and REST API.

A knowledge management template for https://obsidian.md, in which to grow your ideas

Zettelkasten visualization and stats🤩🗒

🏆 AI Procurement Assistant - Google Cloud Sweden Hackathon Winner. Natural language search for retail buyers using Superlinked semantic search.

A machine learning-based system that uses state-of-the-art natural language processing (NLP) question answering (QA) techniques combined with summarization for mining the available scientific literature

A transparent, extensible, autonomous-capable AI assistant for note taking and knowledge management