Semantic Knowledge Graph
The best 50 Semantic Knowledge Graph AI tools - Free & Paid
Explore 50 AI for Semantic Knowledge Graph
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
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
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
Semantic Scholar indexes 230 million papers, offering AI‑powered semantic search that prioritizes relevance and citation impact. It provides contextual PDF annotations, a developer API, and export options for literature reviews, grant research, and teaching.
Free
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
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
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
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
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
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
Morphik.ai is an open-source AI tool for fast, visual-first knowledge retrieval across industries, enabling efficient document searches and insights from complex data. It offers custom integrations via API/SDK and embeds context in diagrams for accurate, streamlined research.
Freemium
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
Grok is a conversational AI and multimodal chatbot developed by xAI, Grok is designed to enhance user interaction by providing answers to a wide range of questions, including those that might be considered "spicy" or controversial, which other AI systems typically avoid
Freemium
ContextClue transforms CAD, PDF, ERP and planning files into queryable knowledge graphs, enabling semantic search and automated generation of SOPs, compliance reports, and digital‑twin data. Ideal for manufacturing, R&D, and maintenance teams to streamline specification access and part reuse.
Freemium
Gemini is an AI assistant and chatbot provided by google based on Gemini LLM family. It provides access to Google's advanced AI systems with many features and integrations to help you with daily workflows and tasks."
Freemium
- $20
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
DeepSeek-V3 is an advanced AI model offering leading performance in open source LLM, enhanced speed, and global language support. It sets new benchmarks for inference speed among open-source models.
DeepSeek API, available via Kie.ai, provides access to DeepSeek models R1 and V3 for complex reasoning and natural language processing.
Freemium
WeKnorais a LLM-powered framework for deep document understanding and retrieval-augmented generation (RAG), providing multimodal preprocessing, chunking, semantic vector indexing and LLM inference for context-aware answers.
Modular integrations (Qdrant, configurable retrievers), agent mode with ex
Freemium
Cerebro is an AI-powered knowledge management tool that consolidates information from various sources, enabling efficient retrieval of insights through automated key point extraction. It streamlines workflows and connects ideas to combat information overload.
Free trial
Knowbase.ai turns PDFs, Word, PowerPoint, text, audio, video, and YouTube links into a searchable knowledge base, delivering AI‑generated answers with source citations. It supports chat with individual documents or all files, transcription with speaker ID, multilingual use, and private data handling
Free trial
Synaptic AI is a browser-integrated knowledge base and AI agent that captures and summarizes web pages and videos into searchable notes, supports rich-text editing, tagging, chat-based retrieval, and generates kanban tasks from notes for research and project workflows.
SOM AI is an AI chatbot for Indonesian university students and researchers that brainstorms research titles, paraphrases text to lower plagiarism, explains complex concepts, and guides thesis outlines and literature reviews while saving conversation history for future reference.
Freemium
ScrapeGraph AI is an automated web scraping tool that extracts structured data from various sources using natural language prompts. It supports multiple programming languages and adapts to website changes, producing clean data for analytics and AI training.
Freemium
TwelveLabs extracts structured data from videos using AI models Marengo and Pegasus. Its APIs enable time‑based search, on‑demand summarization, and vector embeddings for semantic search and recommendations, supporting media, advertising, and security workflows.
Freemium
- $0.07
Schemawriter.ai automatically generates JSON‑LD schema for webpages and local businesses by crawling URLs, extracting entities from Wikipedia and Google Knowledge Graph, and delivering ready‑to‑use local business, GeoRadius, FAQ, product, and other schemas in under 30 seconds.
Subscription
- $59/mo
Haxiom is an online Markdown editor for collaborative teams that organizes knowledge into a unified, GitHub-linked knowledge base with real-time multiplayer editing, AI-driven note structuring and deduplication, semantic search, GitHub sync, Typst math rendering, and an AI assistant.
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
Memo AI is a workspace that ingests PDFs, videos, websites, and text, extracting structured content into semantic chunks with vector embeddings for hybrid keyword‑semantic retrieval. It generates flashcards, tests, summaries, mind maps, and supports active‑recall, spaced repetition, multilingual AI
Free
Knowledge AI is an AI-powered learning tool that delivers concise summaries of complex content, such as lectures and videos. It highlights key themes, generates common questions, and facilitates real-time interactions for improved comprehension and retention.
Freemium
Qwen Chat AI assistant that provides access to Qwen LLM models and can be used by content creators, developers, and researchers, offering web and image searches, artifact management, and more to enhance productivity.
iAsk.Ai delivers instant, factual answers to natural‑language questions from authoritative web sources, and offers essay drafting, advanced grammar checks, academic summarization, PDF analysis, image generation, URL bullet‑point briefs, and one‑click grammar correction. Accessible via browser extens
Freemium
- $9.95/mo
Concept Map AI is a free mind mapping tool that enables users to create visual concept maps quickly through AI interaction. It supports educational purposes, project planning, brainstorming, and process mapping, enhancing clarity, collaboration, and operational efficiency.
Free trial
Saga unifies notes, documents, and task management in a single AI‑enhanced workspace, offering real‑time collaboration, Google Drive/Linear integration, AI text generation, Kanban boards, live linking, side‑by‑side views, and rapid cross‑app search.
Freemium
- $5/mo
AI Math Solver offers precise, step‑by‑step solutions for college‑level and SAT math, a Tutor Mode that poses probing questions, a Knowledge Graph linking concepts to practice problems, adaptive study plans, real‑time mastery tracking, and on‑demand question generation.
Freemium
Algolia is an AI‑driven search platform that indexes, retrieves, and monitors data. It offers Agent Studio, RAG‑powered experiences, conversational search, real‑time personalization, analytics, and built‑in integrations for e‑commerce, SaaS, media, and marketplaces.
Freemium
Docugami transforms unstructured business documents into structured knowledge graphs, extracting key data from contracts, invoices, clinical trials, and more. Its no‑code interface and secure connectors integrate with SharePoint, Google Drive, and ERPs, automating review, compliance, and decision wo
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
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
TreeMind uses AI to convert prompts, images, or documents into structured mind maps and other diagram types. It supports unlimited nodes, real‑time collaboration, multiple export formats, and cross‑platform sync for students, educators, and teams.
Freemium
Shiken.ai is an AI platform that converts text, files, and URLs into voice‑enabled lessons, microlearning quizzes, and role‑play scenarios. It offers active recall, spaced repetition, real‑time feedback, embed capability, progress tracking, analytics, and scalable live quizzes.
Freemium
- $99.99
Maxkb is an open-source platform for building enterprise-grade agents that enhance interaction and information retrieval using retrieval-augmented generation. Its model-agnostic design supports various applications in customer service, knowledge management, research, and education.
Subscription
Skywork.ai is a versatile AI workspace agent that can analyze data, manage content, and integrate with 300+ tools to streamline market research, stock evaluation, and knowledge base creation.
Freemium
WiseMap uses ChatGPT to expand keyword‑driven mind maps, adding nodes and refining structures via natural language. It offers AI‑generated backgrounds, unlimited edits, export options, and collaborative sharing with credit tracking for teams and educators.
Paid
- $5/mo
Genspark unifies inbox, workflows, and collaboration into one AI workspace, offering a 1‑million‑token context window, voice‑to‑text, auto‑meeting notes, and Chrome extensions for instant summarization and task automation across WhatsApp, Slack, and Teams.
Freemium
myReach consolidates corporate knowledge, letting employees search documents, emails, and media with semantic AI. It supplies no-code AI agents (myGenie) for support, onboarding, and customer service, and integrates via SSO while meeting ISO 27001 and GDPR with AES‑256 encryption.
Subscription
- $500/mo
Consensus is an AI‑powered academic search engine indexing 250 million peer‑reviewed papers. Its Deep Search expands terms, applies filters for time, design, and population, visualizes study agreement, and offers medical‑focused evidence for rapid literature reviews.
Freemium