Personal Knowledge Graph
The best 50 Personal Knowledge Graph AI tools - Free & Paid
Explore 50 AI for Personal Knowledge Graph
The StoryGraph is an AI-powered reading platform utilizing machine learning. It offers personalized book recommendations, stats tracking, customizable selections, mood/theme filters, live reactions, reading challenges, and content warnings for an immersive reading experience.
Free
Supermemory unifies user profiling, a vector memory graph, and rapid retrieval into a single API, extracting PDFs, web pages, images, and syncing from Notion, Slack, Google Drive, Gmail, S3. It integrates via TypeScript, Python, or REST.
Freemium
- $19/mo
Kompas is a local-first desktop app that builds a personal knowledge graph from notes, documents, highlights, web pages and voice, organizing work into sessions that retrieve related material to support progressive, connected writing and offline LLM use.
Free trial
Curiosity unifies enterprise data into a knowledge graph, enabling AI‑powered search and assistants across legacy and modern systems. It deploys on‑premises for GDPR compliance, offers fast hybrid search, and reduces response times and error rates.
Subscription
Grokipedia is an AI-driven knowledge base featuring over 885,279 articles and a user-friendly search function. It offers multiple themes and an intuitive interface to facilitate efficient research across a wide range of topics.
Free
Open Knowledge Maps is an AI search engine that visualizes scientific literature across disciplines, clustering related papers to reveal topic connections and trends. It supports varied document types, offers high‑quality metadata, multilingual browsing, and open‑source integration.
Freemium
MyMemo is an AI-powered knowledge management tool that simplifies organizing and accessing personal data. It provides AI-driven recaps, tailored collections, and extracts essential insights for efficient information retrieval.
Freemium
understand-anything.com is an AI tool that transforms any codebase into an interactive knowledge graph, mapping files, functions, and dependencies across 26+ file types. It enables rapid code comprehension through features like dependency pathfinding, fuzzy semantic search, and AI-guided tours for o
Freemium
Connected Papers visualizes academic literature as a graph, letting users enter a paper and instantly see related works, citation paths, and trends. It aids in building bibliographies, spotting gaps, and finding recent research.
Freemium
Knowt turns uploaded PDFs, slides, videos, or audio into interactive study aids. AI generates summaries, flashcards, quizzes, and spaced‑repetition decks, supporting STEM, humanities, languages, and exam prep. Teachers can import Quizlet sets and track class progress.
Free
Cross‑platform personal knowledge manager consolidating notes, bookmarks, articles, images, and quotes into one private space. Auto‑classifies content, generates AI summaries, and enables search by color, keyword, brand, or date. Real‑time sync across iOS, Android, macOS, Chrome, Edge, and Safari.
Subscription
- $24.92/mo
Tana is an AI-native workspace that enhances knowledge management by transforming notes into tasks, projects, and documents. With AI-powered meeting transcription, custom feeds, and automation, it streamlines workflows for professionals, teams, and individuals seeking organized productivity.
Freemium
Mindlib is a mobile-friendly personal knowledge management tool that uses mind mapping and AI to organize insights, offers content suggestions, enables real-time synchronization, and allows intuitive exploration and connection of ideas across devices.
Freemium
KnoWhiz creates personalized flashcards, quizzes, and tutor responses from uploaded materials. It supports multiple subjects, tracks progress, offers instant courses and unlimited tests, and integrates a Discord bot for community discussion and real‑time help.
Paid
Mem.ai is an AI-powered workspace that simplifies information management and collaboration, automates tasks, and facilitates knowledge sharing.
Freemium
MyPersonas is a tool that creates AI clones of experts for real-time knowledge sharing, replicating their appearance, voice, and communication style. These clones handle routine inquiries 24/7, learn from interactions, and connect users to human experts for complex queries.
Free trial
Lettria transforms unstructured PDFs into structured knowledge graphs, enabling precise, traceable answers in regulated sectors. Its NLP modules extract tables, diagrams, entities, and relationships, combining graph retrieval with vector search to improve accuracy and support audit‑ready compliance
Freemium
Gnow adapts study paths—basic, standard, expert—using AI, offering visualization modules, example generators, quizzes, flashcards, and community guides. Accessible via web browsers on Windows, macOS, Linux, it tracks progress, gives instant feedback, and tailors lessons to learners’ styles.
Freemium
- $19/mo
Graph.one is a desktop tool that maps professional networks using email and calendar data, enabling users to visualize connections, optimize fundraising efforts, and secure warm introductions while ensuring data privacy with strong encryption and compliance measures.
Freemium
Longshot AI's FactGPT feature generates user-sourced and factually accurate content for current events, opinions, product reviews, comparisons and more, with personalization options and access to citations.
Freemium
- $19/mo
Knowee Writer assists academic writing by generating outlines, auto‑completing sentences, refining drafts, and producing citation lists in APA, MLA, Chicago, Harvard, and IEEE. Users can upload PDFs or search Google Scholar for verified sources.
Freemium
User Persona is an AI‑driven tool that creates data‑backed personas from a brief product description. Users input key details and receive demographic, behavioral, motivation, and goal profiles. Editable fields enable fine‑tuning before exporting to an image.
Freemium
InfraNodus visualizes text analysis by building knowledge graphs from PDFs, markdown, CSV, social media, and web data. It offers topic modeling, sentiment, keyword extraction, and API/browser‑extension/Obsidian integration to help researchers, marketers, and SEOs uncover relationships, gaps, and ide
Subscription
- $12/mo
Periplus is an AI-based educational platform that offers personalized courses, documents, and flashcards across various subjects, facilitating structured learning paths and enhancing knowledge retention through quizzes while allowing users to build an organized personal library.
Free trial
An AI platform that converts a brief questionnaire into a 200‑page personalized book featuring the recipient’s name, interests, and photos. Users choose title, cover style, and format, and receive paperback or hardcover within 9‑13 business days.
Freemium
Memno is a privacy-first personal AI assistant that builds a personal knowledge graph from photos, documents, voice notes, emails, contacts and calendars to enable context-aware search, reminders, automated scheduling, multilingual calls and task automation.
Freemium
Squirro consolidates structured and unstructured data using knowledge graphs and AI guardrails, delivering secure, compliant analytics for regulated sectors. It offers document intelligence, semantic search, real‑time compliance monitoring, and privacy controls, enabling faster decisions and reduced
Freemium
Kin is a personal AI coach that retains user context, offering a five‑domain advisory board and daily voice‑driven sessions. It delivers proactive insights, reflection journaling, and mental‑load tracking, with local encrypted data and full export control.
Freemium
GoSearch consolidates indexed and non‑indexed data from 100+ apps, letting teams query across email, chat, documents, and private files with AI assistants. It automates routine tasks through custom agents, enforces granular security, and supports multiple LLMs for unified enterprise knowledge.
Freemium
- $20/mo
Remio AI is a personal knowledge hub that auto-captures and organizes ideas from multiple sources, offering AI-driven recommendations and secure, device-based storage. It enhances productivity with smart search, tailored insights, and upcoming features like writing aids and advanced reasoning.
Waitlist
The platform provides a suite of tools to create and manage an AI assistant with natural language processing, machine learning, and conversational AI features that can automate tasks like scheduling meetings and answering customer queries.
Freemium
- $40/mo
vizGPT turns natural‑language queries and drag‑and‑drop into live dashboards and charts, retaining context for follow‑ups. It includes data tables for profiling and transforms, and design tools that generate Lottie JSON and SVG animations, enabling team collaboration.
Paid
- $10/mo
NowKnow uses AI personas to simulate target audiences, delivering rapid market feedback and visual design testing within minutes. It supports detailed demographic targeting, unlimited studies without recruitment costs, and basic analytics dashboards with optional predictive insights.
Subscription
- $15/mo
Petal is an AI document analysis platform that links to your knowledge bases to deliver context‑aware, fully sourced answers. It centralizes files in a cloud drive, auto‑extracts metadata, removes duplicates, and supports annotation and collaboration without email.
Freemium
- $2.55/mo
MindPeer connects research analysts to senior leaders via a structured workflow. Its Intellibot frames questions; retrieval‑augmented answers deliver sentence‑level citations, confidence ratings, and a gap register that shows what is known, what is certain, and what remains uncertain.
Freemium
Piktochart is an AI‑powered visual creation platform that turns text into infographics, charts, and videos within seconds. It offers templates, a brand kit, collaborative editing, interactive graphics, and export options for print and digital use.
Freemium
Gnothi is an AI notebook that lets users record entries with custom fields, tracks patterns, and auto‑summarizes long content. It offers keyword identification, personalized book suggestions, and tagging for organized reflection and goal setting.
Free
Knowmax consolidates support content into a single source of truth, offering AI‑powered search, guided decision trees, and visual how‑to guides. It lets CX agents retrieve contextual answers across channels, reducing handling time, boosting first‑contact resolution, and easing onboarding.
Freemium
Cognee is an open-source agent memory platform that captures context, builds graph and vector memory, and enables persistent, searchable recall across sessions via an SDK, memory API, connectors (S3, Slack, Notion, Drive) and governance controls.
Free
Qonqur automatically maps uploaded academic papers into interactive citation networks, visualizing current research positions and future discovery paths. It updates in real time, tracks progress, supports multiple disciplines, and highlights emerging trends through generative AI.
Freemium
GoProfiles is an AI‑powered employee directory that syncs real‑time HRIS data, provides an AI assistant for coworker insights, visualizes global teams with an interactive map, and offers peer recognition and milestone celebrations via Slack, Teams, and mobile.
Subscription
- $99/mo
MindPal converts SOPs into 24/7 AI agents. Its knowledge layer stores documents, orchestration chains tasks such as research and drafting, and the delivery layer publishes agents as chatbots, embedded tools, or portals that integrate with WordPress, Shopify, and Notion.
Freemium
Youmind is an AI creation studio for personalized learning and idea management, allowing users to capture and organize inspiration from various formats, integrate insights, and create editable documents to enhance clarity and cohesion in their work.
Free trial
iWeaver lets users upload documents, videos, audio, and images to extract key concepts, generate summaries, and build mind maps. It supports structured Q&A, data extraction, and visual mapping for research, analysis, and legal review. Modular agents enable API integrations for workflows.
Freemium
- $9.9/mo
PeopleAI lets users chat with AI‑generated personas of historical figures, from Gandhi to Einstein, offering an interactive, searchable library for educators and researchers to explore historical perspectives and submit new figures for expansion.
Freemium
Recall is an AI-driven knowledge management tool that organizes and retrieves information efficiently. It summarizes content, uses an interactive knowledge graph, supports spaced repetition, and ensures cross-platform accessibility while prioritizing user data privacy.
Freemium
Glean indexes content from 100+ business apps—including Slack, Teams, Gmail, Salesforce, and SharePoint—to deliver a unified search experience. Its AI assistant retrieves documents and emails based on user context, while Agent Builder automates repetitive tasks. Security controls safeguard sensitive
Subscription