# AI tools for “Self-study” 79 matching tools; showing 24, ranked by relevance. Filters: `group=coding-development` | # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Why it matched | Profile (Markdown) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 1 | [Prep Edu](https://openaitools.app/tool/prep-edu) | 1,414,975 | -19.8% | Paid | Study smarter for IELTS, TOEIC and HSK with AI speaking and writing rooms | keywords 50%; semantic match | [.md](https://openaitools.app/tool/prep-edu.md) | | 2 | [Coddy](https://openaitools.app/tool/coddy-tech) | 7,478,457 | +17.8% | Freemium | Learn to code free with hands-on lessons and instant playgrounds | semantic match | [.md](https://openaitools.app/tool/coddy-tech.md) | | 3 | [DataCamp](https://openaitools.app/tool/datacamp-com) | 6,237,230 | -0.4% | Freemium | Interactive courses for data science, AI and analytics skills | semantic match | [.md](https://openaitools.app/tool/datacamp-com.md) | | 4 | [Alfa PTE](https://openaitools.app/tool/alfapte) | 886,734 | -15.1% | Freemium | PTE practice tests with instant AI scoring and realistic mock exams | keywords 50%; semantic match | [.md](https://openaitools.app/tool/alfapte.md) | | 5 | [Prolific](https://openaitools.app/tool/prolific-com) | 18,697,671 | -1.8% | Paid | High-quality human data for AI training, evaluation, and research | keywords 50% | [.md](https://openaitools.app/tool/prolific-com.md) | | 6 | [SkillsMP — Agent Skills Marketplace](https://openaitools.app/tool/agent-skills-marketplace) | 470,744 | -3.7% | Free | Search and study millions of public SKILL.md agent skills | keywords 50%; semantic match | [.md](https://openaitools.app/tool/agent-skills-marketplace.md) | | 7 | [Quizbot.ai](https://openaitools.app/tool/quizbot-ai) | 104,608 | +72.3% | Freemium, Free Trial, Paid | Turn any document, video or topic into a finished quiz in seconds | keywords 50%; semantic match | [.md](https://openaitools.app/tool/quizbot-ai.md) | | 8 | [ELSA Speak](https://openaitools.app/tool/elsaspeak-com) | 958,654 | -21.9% | Freemium, Free Trial | AI English speaking coach with instant pronunciation feedback | semantic match | [.md](https://openaitools.app/tool/elsaspeak-com.md) | | 9 | [Vocareum](https://openaitools.app/tool/vocareum-com) | 531,556 | +5.4% | Paid | Hands-on lab infrastructure for AI, cloud, and data education | semantic match | [.md](https://openaitools.app/tool/vocareum-com.md) | | 10 | [PTE APEUni](https://openaitools.app/tool/apeuni-com) | 2,212,623 | +11.2% | Free | Practise PTE Academic and PTE Core free, with AI scoring for speaking and writing | keywords 50% | [.md](https://openaitools.app/tool/apeuni-com.md) | | 11 | [OETStudy](https://openaitools.app/tool/oetstudy-com) | 4,738 | +264.2% | Free | AI-powered practice and scoring for the Duolingo English Test | keywords 50%; semantic match | [.md](https://openaitools.app/tool/oetstudy-com.md) | | 12 | [ChatPDF](https://openaitools.app/tool/chatpdf) | 1,044,477 | -3.7% | Freemium | Chat with any PDF, video, or website and get cited answers in seconds | keywords 50% | [.md](https://openaitools.app/tool/chatpdf.md) | | 13 | [Magisterium AI](https://openaitools.app/tool/magisterium-ai) | 639,839 | +2.3% | Freemium | Catholic answer engine grounded in 30,000+ cited sources | keywords 50% | [.md](https://openaitools.app/tool/magisterium-ai.md) | | 14 | [The Full Stack (fullstackdeeplearning.com)](https://openaitools.app/tool/fullstackdeeplearning-com) | 46,082 | +6.6% | Free (educational content) | Courses and best practices for building AI-powered products end to end | semantic match | [.md](https://openaitools.app/tool/fullstackdeeplearning-com.md) | | 15 | [TOEFL Practice](https://openaitools.app/tool/toefl-practice) | 24,709 | -45.4% | Freemium | AI-graded TOEFL practice tests with instant scores and feedback | semantic match | [.md](https://openaitools.app/tool/toefl-practice.md) | | 16 | [Profound Academy](https://openaitools.app/tool/profound-academy) | 21,103 | +30.5% | Paid | Turn a course idea into hands-on CS lessons, coding labs, exams and autograders. | semantic match | [.md](https://openaitools.app/tool/profound-academy.md) | | 17 | [ProjectAI](https://openaitools.app/tool/projectai) | 20,457 | -1.4% | Freemium | Escape tutorial hell by building real, portfolio-ready projects | semantic match | [.md](https://openaitools.app/tool/projectai.md) | | 18 | [Prolific](https://openaitools.app/tool/prolific-co) | 77,755 | -24% | Paid | Real human data for AI training, evals, and research — in minutes | keywords 50% | [.md](https://openaitools.app/tool/prolific-co.md) | | 19 | [Build Club](https://openaitools.app/tool/build-club) | 11,166 | -53.9% | Free | Learn AI by building, with a global community of makers | semantic match | [.md](https://openaitools.app/tool/build-club.md) | | 20 | [CourseMind](https://openaitools.app/tool/coursemind) | 7,018 | -26.3% | Freemium | Run your online school and automate teaching, quizzes, and course marketing | semantic match | [.md](https://openaitools.app/tool/coursemind.md) | | 21 | [Caktus AI](https://openaitools.app/tool/caktus) | 47,736 | -33.7% | Freemium | One AI study workspace with 25+ tools for essays, math, research and exam prep | keywords 50% | [.md](https://openaitools.app/tool/caktus.md) | | 22 | [Use of English AI](https://openaitools.app/tool/use-of-english-ai) | 7,073 | +82.8% | Freemium | Unlimited AI-generated Cambridge English practice with instant feedback | semantic match | [.md](https://openaitools.app/tool/use-of-english-ai.md) | | 23 | [CodeFriends](https://openaitools.app/tool/codefriends-learning-platform) | 6,775 | -35.7% | Free Trial, Paid, Contact for Pricing | Browser-based coding and AI courses you learn by doing | semantic match | [.md](https://openaitools.app/tool/codefriends-learning-platform.md) | | 24 | [R.test](https://openaitools.app/tool/rtest-ai) | 7,352 | -47.9% | Freemium | AI-powered diagnostic practice tests for SAT®, ACT®, PSAT/NMSQT® and AP® — scored in about 40 minutes | semantic match | [.md](https://openaitools.app/tool/rtest-ai.md) | Page 1 of 4 · [Next page →](https://openaitools.app/index.md?q=Self-study&group=coding-development&page=2) For programmatic access use `https://openaitools.app/api/tools?q=…` or MCP `https://openaitools.app/api/mcp`. --- Source: https://openaitools.app/?q=Self-study More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)