Free AI Tools Directory

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.

VidQuest AI is a Chrome-extension and web service that accelerates YouTube research by providing context-aware AI answers to questions about any public video and a Keyword Finder that returns clickable timestamps for searched terms.

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.

Salam Chat is an AI-powered chatbot designed to help users learn Islam more easily by providing answers with citations to the Quran and Hadith and applying a halal filter to restrict out-of-scope content.

Docky.AI is a browser sidebar extension that brings multiple large language and image models (GPT, Claude, Gemini, Flux, DALL·E, SDXL, Ideogram, etc.) into a single sidebar for chat, summarization, writing, OCR, and image generation without leaving the current web tab.

Chippy is a Chrome/Chromium browser extension that brings ChatGPT-powered assistance into any webpage for summarization, research, translation, and quick replies without switching tabs.

ChatPDF.ae is a web-based AI assistant that lets users upload PDFs and ask questions, summarize, and extract insights from documents using an AI chat interface powered by OpenAI's ChatGPT.

MyMathSolver.ai is a free online AI-powered math solver that uses Math GPT (GPT-4o) to provide detailed, step-by-step solutions for algebra, calculus, geometry and other math topics, accepting text, images, PDFs and CSV inputs.

Cratecode is a project-focused online platform for learning programming that uses AI to assist learners with coding questions, feedback, and step-by-step guidance.

Myreader.ai is an AI-powered reading assistant that lets users upload books, PDFs, documents, article links and YouTube videos to get instant answers, summaries, searchable citations, and convert content into audiobooks in multiple voices and languages.

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.

Tutor AI is an AI-driven learning platform that generates personalized courses, study materials, and step-by-step homework help to help learners, educators, and businesses learn and train more effectively.

Edubrain AI Homework Helper is a web-based, privacy-first AI tutor that provides step-by-step solutions across many school and university subjects, accepts PDF/scan/image/audio inputs, and offers free access with optional paid upgrade tiers.

Mathful is a web-based AI math solver and calculator that provides instant, step-by-step solutions to math problems from basic arithmetic to advanced calculus, supporting typed input and photo uploads for students and other users.

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.

Mindgrasp is an AI-powered study system that converts lectures, readings, videos, and links into notes, summaries, flashcards, quizzes, and an AI tutor to help learners study faster, remember longer, and reduce stress.

GPTOnline.ai is a free, ad-supported web interface that provides instant chat access to advanced GPT language models (promoting GPT-5) without registration, aimed at students, creators, marketers and developers.

We Are is an AI-powered course authoring tool for creating immersive 3D animated and interactive learning experiences and scenario-based training that can be shared via LMS, embed, or exported as SCORM/xAPI/cmi5.

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.

Mochi 1 is an open-source AI video generation model by Genmo AI that produces smooth, physics-aware 30fps videos with strong prompt adherence using the AsymmDiT architecture. It targets creators, developers, and researchers and is available under the Apache 2.0 license.

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.

HumanizerAI is a web-based AI humanizer that detects AI-written text and rewrites it into more natural, human-like prose with selectable intensity levels (Light, Medium, Bypass). It offers detection, rewriting controls, re-humanization, a REST API/Agent Skills, and paid plans for individuals and teams.

StudyX is an all-in-one AI study platform that lets students upload homework, lectures, PDFs, and videos to get instant step-by-step solutions, organized notes, flashcards, quizzes, and AI writing/originality tools. It offers free access to many tools and paid subscription options for extended features.

SalesCred (by SalesFuel) is an AI-augmented sales credibility platform and training program that helps B2B sales teams build credibility, trust, and influence through situational assessments, targeted training, and a pre-meeting research app.