Free AI Tools Directory

User Evaluation is an AI-first user research platform that automates transcription, analysis, synthesis, and reporting across audio, video, text, and tabular data to deliver rapid, actionable user insights.

AI Text Humanizer is an online paraphrasing tool that converts machine-generated text into natural, human-like prose that aims to bypass AI detectors, improve readability, and produce plagiarism-free output.

HeyGPT is a web-based ChatGPT front-end that extends OpenAI models with multimodal and convenience features — including GPT-4 Vision, audio chat/transcription, document/PDF/website and YouTube chat, local chat storage, and optional use of your own API keys.

Gowinston (Winston AI) is an AI content detection and integrity platform that identifies AI-generated text and images, checks for plagiarism, provides writing feedback, and offers an API for integrations. It targets educators, publishers, SEO teams, and writers who need reliable content authenticity checks.

SummaVerse is an AI-powered document analysis platform that generates concise summaries and conversational chatbots from uploaded documents, aimed at researchers, students, and businesses.

TriviaMaker is a free, AI-powered quiz creation tool that helps educators, trainers, and content creators generate quizzes quickly using artificial intelligence.

Quetext is an AI-powered originality and writing platform offering plagiarism detection, AI-content detection, paraphrasing, summarization, citation generation, grammar checking, and bulk scanning for individuals, teams, and educational institutions.

ProxyShare is a proxy service provider offering 75M+ residential IPs, static residential and data center proxies, and long-acting ISP proxies with global coverage and support for HTTP/SOCKS5 protocols. It targets teams and businesses needing large-scale web scraping, ad verification, price monitoring, e‑commerce data collection, and web testing.

Flashcard Maker is a web app that uses AI to convert text into flashcard decks instantly, combining automatic question-answer generation with spaced repetition for efficient learning. It targets students and professionals who want fast, AI-assisted flashcard creation and study.

Resume.io is an AI-enhanced resume and cover letter builder offering ATS-friendly templates, example libraries, job search tools, recruiter matching, interview prep, salary analysis, and career coaching to help job seekers create tailored application materials and improve hiring outcomes.

ChatDOC is an AI assistant for interacting with documents (PDFs, DOCs, websites, EPUB, MD, TXT and scans). It lets users upload files, ask questions across every file, and view sourced answers with click-to-see footnotes and origin highlights.

PDFTranslator.org is a free, AI-powered online service that translates PDF files across 100+ languages while preserving original formatting, supporting OCR for scanned documents, and requiring no sign-up.

AI for Math is a Chrome extension that uses AI (mathgpt) to solve math problems with instant, step-by-step explanations and supports image (photo) input for snapping and solving handwritten or printed questions. It targets students, teachers, and professionals seeking quick mathematics assistance.

Paperguide is an all-in-one AI research assistant that helps students, faculty, and researchers find, analyze, and write about scholarly literature using AI-powered search, literature review tools, reference management, and an AI writer.

Humata is a document-focused AI assistant that reads your files (PDFs and other documents) to answer questions, summarize content, compare documents, and surface citations — designed for researchers, teams, and classrooms.

ChatsNow is a Chrome sidebar AI assistant that brings ChatGPT and multiple large language models (GPT-4o, GPT-4, Claude3, Gemini) into the browser for chat, writing, summarization, translation, code help, and AI image generation.

TubeOnAI is an all-in-one AI summarizer and repurposing platform that extracts key insights from videos, podcasts, documents, and web articles, then turns them into ready-to-publish content for blogs, social media, newsletters, and more.

Petal is a document analysis and generative AI platform that links to your knowledge bases to produce fully sourced, context-aware answers and lets teams train AI on their own documents for research and collaboration.

Sourcely is an AI-powered academic search assistant that helps students and researchers find, summarize, and cite credible academic sources from a database of 200+ million papers by pasting text or essays and applying advanced filters.

ChatPDF is an AI-powered web app that lets you upload documents (PDFs and other formats) and chat with them—summarizing, asking questions, translating and extracting information with built-in citations and multilingual support.

BlockSurvey is a privacy-first, AI-powered survey and form platform that offers end-to-end encryption, AI survey creation and analysis, and Web3-enabled features (token-gating, verified social identity) for organizations needing secure, compliant data collection.

Ivory Mind (formerly Coral AI) is an AI assistant for documents that lets users upload files to summarize, query, transcribe, and generate deliverables (mind maps, presentations, meeting minutes) with page-cited answers in seconds.

PDF GPT is an AI-powered tool for reading and interacting with PDF documents — it summarizes, searches, translates, and provides answers with page-level citations, supporting 90+ languages and used by researchers and professionals.

Speak (Speak AI) is a modular voice and video AI platform for capturing, transcribing, translating, analyzing, and deploying conversational AI agents—designed for researchers, sales, marketing, customer support, and teams that need evidence-backed voice workflows.