661 tools
Free to startEducation & tutoring
CreateMyTest converts pasted text, uploaded documents, or YouTube videos into practice tests using AI. Users can customize question types such as multiple choice, true/false, matching, and fill-in-the-blank, then run unlimited self-test sessions.
Free tier unknownEducation & tutoring
Cubby Law is an AI teaching assistant for law students that grounds answers in a legal corpus and uploaded course materials. It advertises professor partnerships, personalized exam prep, and a top-half grade guarantee on its annual subscription.
Free planEducation & tutoring
Curipod is a classroom writing platform where teachers run curriculum-aligned lessons and students read, write, and discuss together live. It emphasizes collaborative writing practice, state-test outcomes, and AI-assisted activity generation for schools.
Free planEducation & tutoring
Cybrary is an online cybersecurity training platform offering courses, hands-on labs, career paths, certification prep, and team programs. The homepage promotes free on-demand access for individuals plus Insider Pro and business tiers with broader catalog access and team dashboards.
Free to startWriting & content
Dailos.ai creates personalized children's stories with AI: you set the child's name, age, language, characters, and values, and it generates unique text, illustrations, audiobook narration, translations in 40+ languages, and a downloadable PDF for home or classroom use.
Free tier unknownEducation & tutoring
Daily Wiser is a gamified micro-learning app that uses AI personalization to deliver daily lessons, track skill growth, and issue blockchain-verified NFT skill badges so learners can build habits and credentials over time.
Free planResearch & search
DankGPT is a GPT-4o-mini powered research assistant for students and academics that lets you upload documents and ask questions to break down complex readings, compare tabs for research versus study workflows, and share findings.
Free planEducation & tutoring
DeAP Learning Labs offers free AI tutors for AP exam prep across 17+ subjects, scoring free-response answers against official College Board rubrics. Chatbots emulate partner educators and give instant feedback on SAQs, DBQs, and LEQs.
Free tier unknownEducation & tutoring
Debate AI is a practice arena where users spar with an AI partner to sharpen argumentation, rebuttals, and critical thinking. The site showcases example debates, testimonials from debaters and coaches, and notes when demand affects sign-ups.
Free planEducation & tutoring
DebateAI is a web app where you pick a motion and spar with AI opponents trained to argue from different perspectives. It runs structured three-round debates, explores community topics, and is built to stress-test convictions and critical thinking without needing an account to start.
Free tier unknownEducation & tutoring
Debate Devil operates a localized web application at debate-devil.com with English routes under /en.
Free tier unknownBusiness, finance & legal
DeepHow is a Physical AI platform for manufacturing and pharma operations that captures expert knowledge, digitizes SOPs, and verifies frontline work with vision AI. It targets operational excellence use cases such as time-and-motion studies, live SOP verification, troubleshooting guidance, and preserving tribal knowledge on the factory floor.
Free planEducation & tutoring
Dende turns PDFs and other study files into AI-generated quizzes, flashcards, and study plans with multiple question types and progress tracking. It supports scanned documents and many languages, with a free tier limited on uploads and question volume.
Free planDesign, logos & websites
designedbyai.io publishes AI architectural design knowledge, blog research, and free browser-based calculators for room sizing, scale conversion, and paint estimates. It focuses on education and lightweight tools rather than a hosted generative design SaaS.
Free planEducation & tutoring
Desklib bundles AI study tools for students and educators, including an AI grader, code checker, quizzes, paraphraser, plagiarism checker, and a large study document library. The platform emphasizes affordable access for learners and integrity tools for teachers.
Free to startEducation & tutoring
DET Practice is a Duolingo English Test preparation platform with a large question bank, mock exams, AI scoring, and courses. It advertises free starts via Google or email login and positions itself as a platinum partner offering accurate practice materials.
Free planEducation & tutoring
Deutsch Mentor is a mobile language-learning app where users chat in German with an AI mentor named Felix. The marketing site highlights personalized conversations, flashcards saved from chats, gamified XP, and free reference tools for grammar and vocabulary.
Free tier unknownEducation & tutoring
Dhime is an AI-powered dance learning app where students watch expert tutorials, practice moves on camera, and receive instant pose feedback comparing their performance to the instructor. Processing runs on-device for privacy, with Android, Chrome, and Edge clients plus content published by external dance tutors rather than live one-to-one coaching.
Free planEducation & tutoring
Digitools is La Digitale’s online toolbox for classroom activities in person or remotely. The hub bundles timers, randomizers, group makers, story generators, sound boards, and other small teaching utilities behind one French-hosted web interface.
Free tier unknownEducation & tutoring
DINGR is an AI-powered performance analysis service for League of Legends players that helps review gameplay, optimize strategies, and climb ranked ladders.
Free to startWriting & content
DreamKid is an AI storyteller for children that writes, narrates, and illustrates personalized adventures starring a child’s name, chosen world, and companions. Parents configure heroes and receive new chapters with warm voice narration and illustrated pages.
Free tier unknownEducation & tutoring
Duckietown is a robotics and AI learning ecosystem with hands-on autonomy classes, physical Duckiebot hardware, documentation, and research resources for instructors, independent learners, and developers.
Free trialEducation & tutoring
Duetoday is an AI study assistant that turns lectures, PDFs, YouTube videos, and notes into AI notes, flashcards, quizzes, transcripts, and tutor chat grounded in your uploaded course materials rather than the open web.
Free planEducation & tutoring
Duolingo Max is Duolingo’s premium subscription tier above Super, powered by GPT-4 class models for Explain My Answer and Roleplay speaking practice. It extends the core language-learning app with AI tutoring features while standard lessons remain on free and Super plans.
Showing 264 of 661 tools
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