Knowledge Extraction AI
The best 50 Knowledge Extraction AI tools - Free & Paid
Explore 50 AI for Knowledge Extraction AI
Acade AI is an AI research assistant and academic writing platform that unifies literature search, PDF parsing, citation generation, data analysis, drafting, formatting, and translation in one workspace. It connects to Google Scholar and PubMed for source-verified retrieval, supports APA, IEEE, and
Free trial
- $14.99/mo
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
Glean indexes content from 100+ business appsโincluding Slack, Teams, Gmail, Salesforce, and SharePointโto 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
iAsk.Ai delivers instant, factual answers to naturalโlanguage questions from authoritative web sources, and offers essay drafting, advanced grammar checks, academic summarization, PDF analysis, image generation, URL bulletโpoint briefs, and oneโclick grammar correction. Accessible via browser extens
Freemium
- $9.95/mo
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
Exa provides a low-latency web search API and crawler with vertical search (companies, people, code), token-efficient excerpts and machine-readable extracts with grounded citations, enabling agent workflows, analytics, and enterprise-ready security and access controls.
Freemium
Browse AI enables codeโfree web scraping and automation via a pointโandโclick interface. It captures dynamic, paginated, loginโprotected data, autoโdetects site changes, exports to CSV/JSON/AWSโฏS3, and streams into GoogleโฏSheets, Airtable, Zapier, APIs, and more.
Freemium
- $48.75/mo
DetectingโAI scans text in 50+ languages, marking AIโgenerated sentences with probability scores. It integrates with Chrome, Moodle, Zapier, and offers an API, delivering up to 98% accuracy and low falseโpositives while protecting user privacy.
Freemium
- $7/mo
Extruct AI is an AI-powered company intelligence platform that automates business research, enabling users to discover private companies, enrich data, and track market trends in real time. It streamlines lead generation and competitive analysis with dynamic filters and API integration.
Freemium
- $49/mo
GoSearch consolidates indexed and nonโindexed 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
Extracta.ai is an advanced data extraction solution for unstructured documents, achieving up to 99% accuracy without prior training using a three-step process: OCR technology, Large Language Model, and Data Validation. Primarily designed for developers, it offers API integration and a user-friendly
Freemium
answersai is an AI tool that offers instant solutions to academic questions. Users can capture problems via photo and receive accurate responses, with support for follow-up queries to enhance understanding across various subjects, accessible on mobile and web.
Freemium
DeepSeek API, available via Kie.ai, provides access to DeepSeek models R1 and V3 for complex reasoning and natural language processing.
Freemium
Epsilon is an AIโpowered search engine indexing over 200โฏmillion academic papers, retrieving the top 100 results per query. It uses GPTโ4 to provide concise, citationโrich summaries, supports batch data extraction, private libraries, and aids metaโanalyses and proposal drafting.
Freemium
OpenEvidence is a secure medical information platform for U.S. healthcare professionals, facilitating question logging, managing protected health information, and streamlining prior authorization letter writing with access to trusted clinical findings and insights from over 10,000 care centers.
Free
Instant Insight Page by Linnk AI simplifies webpage summaries, eliminates clickbait, and delivers direct answers for efficient content consumption. Bridge language barriers, get concise information, and bid farewell to misleading headlines.
Free
The Speak AI tool is a language data analysis and research platform with transcription, data analysis, and sentiment analysis capabilities for various types of media.
Free trial
MyLens.ai: Powerful AI tool for generating detailed mind maps & extracting insights from docs. Suitable for research, business & learning purposes. Promoting user privacy. Easy application across various uses.
Freemium
Chat & Ask AI combines web search, image generation, link analysis, document chat, and YouTube summarization in one interface. It offers upโtoโdate answers, multilingual support, file uploads, and a prompt library, powered by GPTโ5.2, Gemini, Claude, and Stable Diffusion XL.
Free
AI SEO unifies AIโdriven keyword research, technical audits, and content optimization into a single workflow. It refines structured data, internal linking, and semantic depth, improving search rankings, AI answer visibility, and machine readability for creators and marketers.
Subscription
- $15/mo
Browser extension that displays conversational AI answers and multi-model comparisons alongside search results, integrates with GPT-4/Claude and major search engines, and adds YouTube summaries, PDF/image/OCR processing and content-generation tools for research and creation.
Free
FurtherAI automates key data extraction from underwriting documents, achieving ~95โฏ% accuracy and speeding quote readiness up to 30ร. It streamlines workflows for insurers, brokers, and reinsurers, reducing audit time by about 45%.
Free
Nexus AI generates articles, research text, and citations while providing AIโgenerated images and textโtoโspeech. It extracts data from PDFs, Word, and CSV, checks plagiarism, builds voiceโenabled chatbots, and supports collaborative editing with export to PDF, DOCX, and HTML.
Subscription
Question AI is an AI-powered homework assistant that provides real-time answers, solves math problems via image uploads, and offers instant PDF solutions. It also delivers text summaries, translations, and supports multiple inquiries across mobile and desktop platforms.
Freemium
i10X.ai is a marketplace offering 500+ specialized AI agents and tools for tasks like business strategy, content creation, and visual processing. It supports GPT-4o and Claude 3.7, handling text and image inputs for marketing, SEO, and productivity automation.
Freemium
- $10/mo
DeepAI offers browserโbased AI tools for textโtoโimage, photo editing, background removal, superโresolution, and video/musical generation, plus APIs for integration. It prioritizes user ownership, privacy, fast processing, and supports conservation research via object detection and habitat mapping.
Subscription
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
Allโinโone platform integrating GPTโ4o, Claude, Gemini, and others for unified text, image, video, and document AI. Offers summarizing, translation, prompt templates, workflow tools, quiz creation, SCORM export, web search, subtitles, dubbing. SOCโฏIIโcompliant with fieldโlevel encryption and data is
Subscription
- $8/mo
Algolia is an AIโdriven search platform that indexes, retrieves, and monitors data. It offers Agent Studio, RAGโpowered experiences, conversational search, realโtime personalization, analytics, and builtโin integrations for eโcommerce, SaaS, media, and marketplaces.
Freemium
StudyX is an AIโpowered platform that converts lecture recordings, PDFs, and videos into organized notes, generates spacedโrepetition flashcards, creates custom quizzes from uploaded content, and supports text, image, PDF, and YouTube inputs across web, Discord, and a browser extension.
Freemium
- $12.99/mo
Semantic Scholar indexes 230โฏmillion papers, offering AIโpowered 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
AI Homework Help leverages AI technology to provide instant study question answers, key concept extraction, and personalized tutor support. Users access a vast library of practice problems for efficient study assistance and mastery of topics.
Free
super.AI converts unstructured documents into structured data using LLMs, guiding users through upload, classify, extract, and validate steps. It supports 500+ layouts, multiple languages, codeโfree workflow building, and realโtime ERP/database sync for finance, logistics, insurance, and supplyโchai
Free
Memo AI is a workspace that ingests PDFs, videos, websites, and text, extracting structured content into semantic chunks with vector embeddings for hybrid keywordโsemantic retrieval. It generates flashcards, tests, summaries, mind maps, and supports activeโrecall, spaced repetition, multilingual AI
Free
TextMine is an AI tool for enterprise-level document data extraction, utilizing machine learning to efficiently identify and organize critical information while ensuring data privacy. It enhances operational efficiency and supports various professionals in managing large volumes of text data.
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
QuoteFinder AI is a tool that locates specific passages in documents, books, and blogs, supporting PDF and EPUB formats for efficient searches. It offers chat and quote modes for interactive dialogue or direct excerpt retrieval, with bulk uploads for instant access to information.
Freemium
- $9.95/mo
Course Hero provides AI-enhanced homework aid featuring expert solutions, comprehensive study resources, and in-depth step-by-step explanations. Its one-click tutor assistance and enriched learning materials boost academic performance.
Free
BookNote.ฮฮ quickly extracts core ideas from books, delivering concise summaries, key concepts, and discussion prompts. It supports students, researchers, and casual readers with interactive Q&A, saving time and boosting study efficiency.
Freemium
WebQuery lets users load URLs to build an indexed knowledge base that can be queried in natural language. Answers are drawn exclusively from uploaded content, enabling precise fact retrieval without reading full text.
Freemium
- $10/mo
Linnk AI's Instant Insight Page streamlines content analysis and information retrieval with automated features. Users can quickly summarize, extract insights, filter out fluff content, and bridge language barriers effortlessly.
Free
ContentDetector.AI is a free tool that identifies AI-generated written text, including Chat GPT and GPT 3 content, and provides an estimated percentage score of AI generation likelihood.
Free
Nex AI ingests, validates, and streams structured and unstructured data to AI agents or ERP/CRM systems, offering compliance checks, risk flagging, fraud detection, instant alerts, audit trails, and secure API integration with multiple data platforms.
Subscription
Expertex is an AI conversation tool powered by GPT-4 and Google Gemini 2.5, featuring customizable themes, persona-driven interfaces, automatic translation, and a prompt library, allowing for seamless multilingual discussions and easy access through quick registration.