Free Research AI Tools

AlphaSense is an AI-powered market intelligence and search platform that aggregates premium financial and business content, expert transcripts, and data to help enterprises surface insights, generate reports and presentations, and accelerate research-driven decisions.

Mathpix provides OCR-powered document conversion tools and developer APIs to convert PDFs and images into searchable, exportable, machine-readable text with deep STEM support for math, chemistry, handwriting, tables, and multilingual content.

Semantic Scholar is a free, AI-powered research tool from the Allen Institute for AI (Ai2) for discovering and reading scientific literature, offering search across hundreds of millions of papers, an API for developers, and an augmented reader (Semantic Reader) in beta.

PaperLens is an AI-powered research assistant that provides evidence-backed answers grounded in millions of peer-reviewed papers, helping researchers find, understand, and organize scientific literature faster.

ChatDox is an AI-powered platform that lets users ask questions and get summaries from documents, YouTube videos, websites, audio and video files, aimed at students, researchers, professionals, and businesses.

GPTGO (GPTGO.AI) is a free web-based search engine that combines Google search results with integrated ChatGPT answers, offering multi-language AI chat, instant short answers alongside search results, and no-signup anonymous use.

askan.ai is an independent web service that generates AI answers and publishes only quality-checked responses; it targets writers, researchers, and anyone who needs clear, citable answers quickly.

Ithy is an AI aggregator and research platform that combines responses from multiple large language models (ChatGPT, Gemini, Perplexity, etc.) to produce interactive, multimodal research articles with selectable speed modes and a points-based rewards system.

Humata is an AI-powered document assistant that lets teams upload files (PDFs and other documents) and ask questions, summarize, compare, and retrieve cited answers from their knowledge base. It targets individual researchers and teams with tiered plans and enterprise-grade security.

秘塔AI搜索是一个移动优先的AI搜索服务，页面说明可扫码免费使用、无广告并直达结果，支持上传幻灯片/文件、事实核验、提供API并可新建自定义技能。

Tech2Transfer is an AI-powered platform that analyzes scientific papers to assess technology readiness, IP strength, and market potential, helping researchers, universities, investors, and industry partners accelerate technology transfer and commercialization.

Falcon is an agentic deep research tool for sales that uses AI to scan the internet and deliver up-to-date account intelligence and analytics for GTM teams and sales organizations.

Litero is an AI-powered, source-based writing assistant designed to help users research, draft, cite, and polish text while preserving authorship and ethical use. It offers integrated citation tools, AI-assisted drafting and autosuggestions, AI detection, plagiarism checking, and formatting for academic and professional workflows.

AI-Writer is an AI research and writing platform that answers questions and generates structured review papers grounded in peer-reviewed and open scientific literature, providing verifiable citations, bibliographies, and source paragraphs.

Bunni is a web tool that lets you upload PDFs to summarize, extract information, and chat with one or multiple documents in any language using large language models; it offers pay-as-you-go credit bundles with no recurring fees.

OneCliq is a qualitative insights platform that uses AI to analyze public conversations in real time, turning social and video data into emotion-first, actionable recommendations for strategists, creatives, and research teams.

SciSummary is an AI-first tool (founded 2023) that summarizes scientific and research papers by extracting abstracts, figures, references, and highlighting key findings with structured outputs tailored for researchers and academic workflows.

User Intuition is an AI-moderated customer research platform that runs voice, video, and chat interviews at scale, using laddering (5–7 levels) to deliver evidence-backed qualitative findings in 24 hours from a 4M+ verified panel or your own customers.

PDFChat is a ChatGPT-powered PDF chat app for professional document analysis, enabling Q&A over PDFs and other document types, table interpretation, image and formula analysis, and source-cited answers.

Articos is an online user research platform that runs rapid, synthetic user interviews using behaviorally grounded, AI-generated personas to produce exportable, white-label research reports in under 30 minutes at a per-study cost of roughly $8–$20.

Paperpal is an AI-first academic writing assistant that helps researchers, students, and publishers research, write, edit, check for plagiarism, and prepare manuscripts for submission via web and integrations (MS Word, Google Docs, Chrome, Overleaf).

RapidoForm is an AI-powered, media-enabled form and survey platform that builds surveys, quizzes, and studies from simple prompts and supports audio/video responses, AI analytics, and integrations — positioned as a free, professional alternative to Typeform and Jotform.

ChatDox is an AI-powered document assistant that lets users chat with PDFs, DOCX, TXT, CSV, YouTube videos, websites, audio and video files to get summaries, answers, and analyses. It targets students, researchers, teachers, businesses, lawyers, podcasters and other professionals and offers free and paid plans.

Gist AI is a free Chrome extension that uses ChatGPT to instantly summarize websites, YouTube videos and PDFs (including local files), with features to deep-dive into sources and jump to relevant video moments.