29 resources · 27 free
Test Prep & Certifications
Prepare for exams and credentials — strategy, practice, and certification paths.
Khan Academy SAT Prep
Official SAT preparation built in partnership with the College Board. Thousands of practice questions, full-length practice tests, and video lessons cover Reading, Writing, and Math with detailed explanations and adaptive skill recommendations. Personalized study plans track your progress toward a target score. Best for high school students preparing for the digital SAT, at no cost and with a proven track record of measurable score gains.
ETS GRE POWERPREP Practice Tests
Official GRE General Test preparation from ETS, the test maker itself. POWERPREP Online includes two full-length practice tests, one timed and one untimed, using the same interface and scoring algorithm as the real exam, plus scored Analytical Writing essays with rater commentary. The most realistic free GRE practice available. Ideal for graduate school applicants who want an authentic diagnostic before test day.
IELTS Official Sample Test Questions and Practice Papers
Free official practice materials from IELTS covering Academic, General Training, and UKVI Life Skills formats. Sample papers for Listening, Reading, Writing, and Speaking include model answers and examiner commentary so you can benchmark your band level. Computer-delivered practice tests let you experience the test platform ahead of exam day. Essential for students and migrants preparing for university or visa English requirements.
Magoosh GRE Blog and Free Study Resources
A large free library of GRE study articles, study schedules, vocabulary word lists, math formula reviews, and strategy guides written by experienced GRE tutors. Includes free diagnostic quizzes, a free practice test, and 1,000+ vocabulary flashcards, with the premium course available separately for those who want it. A practical self-prep companion for students building a study plan without paying for a full course.
Sporcle
Sporcle is a free quiz platform with over a million user-created trivia quizzes on geography, science, history, language and more. You play timed, interactive quizzes that test recall and reinforce factual knowledge, with playlists, badges and leaderboards to keep you practicing. It is a strong free self-testing surface for learners who want to drill facts and vocabulary. An optional Sporcle Orange subscription removes ads and adds stats, but the core library is free to play.
ETS Official GRE Prep
The ETS official GRE site provides free preparation including POWERPREP practice tests that simulate the real computer-delivered exam, sample questions, test-taking strategies, and official Math Review and Verbal Reasoning practice sets. Because it comes from the test maker, question style and scoring mirror the actual exam. Free materials cover both General Test sections. For graduate-school applicants preparing on any budget.
LSAC Free LSAT Prep
LSAC, the official LSAT administrator, offers free official preparation: a PrepTest archive of real past exams, the Khan Academy official LSAT prep partnership, and strategy guidance on LawHub. Practice with genuine questions under realistic timing and review detailed explanations. Ideal for law-school applicants preparing on a budget; a free account unlocks substantial official material with optional paid upgrades.
Magoosh Free GRE Practice Test
Magoosh's free GRE practice test provides a full-length, scored mock exam with detailed answer explanations, plus performance analytics showing your strengths and weaknesses by question type. A free trial also unlocks its complete video lesson library covering GRE quant, verbal, and writing. Helpful for establishing a baseline score before deciding on paid prep. Online, self-paced, and accessible to anyone.
r/SAT Wiki
The r/SAT community wiki is a free, crowdsourced study hub compiling test structure guides, official and third-party practice resources, study schedules, score-improvement strategies, and book recommendations vetted by high scorers. Includes explanations of digital SAT format changes and practice-resource tier lists. Studied material plus community-tested advice for students prepping solo. Continually updated by active tutors and test-takers.
freeCodeCamp Certification Paths
freeCodeCamp offers free, self-paced certification paths in web development, data science, and machine learning, each with a structured curriculum, interactive coding challenges, five required projects, and a verifiable certificate upon completion. Certifications such as Responsive Web Design and Data Analysis with Python mirror professional skill benchmarks. Entirely free and nonprofit-funded. Suitable for career changers building job-ready technical credentials.
ISC2 Certified in Cybersecurity Free Training
Free self-paced online training from ISC2 that prepares you for the entry-level Certified in Cybersecurity (CC) certification exam. Covers security principles, network security, incident response, and business continuity through video modules and quizzes. Designed for career changers with no prior experience in cybersecurity, and delivered by the world's largest nonprofit association of certified cybersecurity professionals.
TOEFL iBT Official Test Preparation and Free Practice
Official test preparation hub from ETS, the maker of the TOEFL iBT exam. Includes a free full-length TOEFL iBT sample test, practice questions for reading, listening, speaking, and writing, plus expert tips and study resources for every section. Ideal for non-native English speakers preparing for university admission or professional certification, and the most authentic free prep available since it comes directly from the test maker.
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IELTS Official Free Practice Tests and Preparation Resources
Official free practice tests and preparation resources from IELTS, covering Academic and General Training formats. Includes sample test questions with model answers for listening, reading, writing, and speaking, plus study apps, webinars, and expert preparation advice. Built for anyone planning to take IELTS for study, work, or migration, and trusted by millions of test takers around the world every year.
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ACT Free Practice Tests and Prep
Free official ACT practice tests, quizzes, and daily practice questions published by the ACT organization itself. Includes full-length online practice tests with detailed explanations, study guides, and strategy tips across English, math, reading, and science. A free MyACT account unlocks question-of-the-day features and personalized prep. Essential for high school students targeting competitive college admission scores.
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Professor Messer Free CompTIA Training
A widely loved free training library for CompTIA certifications, featuring complete video courses for A+, Network+, and Security+ that map to each exam's objectives. Every training video is free to watch online, and the site adds daily pop quizzes, study group replays, and downloadable courses. Built for IT professionals and career changers preparing for vendor-neutral IT certifications without paying for expensive bootcamps.
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Modern States Freshman Year for Free
Freshman Year for Free offers tuition-free, self-paced online courses taught by college professors that prepare you for College Board CLEP exams. Complete a course with strong quiz scores and Modern States provides a voucher covering the CLEP exam fee, potentially earning college credit accepted by nearly 3,000 institutions. Ideal for self-learners, homeschoolers, and adult students seeking affordable college credits.
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Union Test Prep Free Practice Tests
Free practice tests, flashcards, and study guides covering dozens of certification and entrance exams including CompTIA A+ and Security+, PTCB, CNA, ACT, and ASVAB. Each exam page offers hundreds of free practice questions with detailed answer explanations, score tracking, and printable study downloads, with premium tiers adding extra questions and cram courses. Great for anyone preparing for professional certification on a budget.
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4Tests.com
A free exam-preparation site offering practice tests for dozens of major certifications and standardized exams, including the GED, SAT, ACT, ASVAB, TOEFL, and IT credentials such as A+, Network+, and Project Management. Each practice exam mimics the real test format with instant scoring and answer explanations, and no registration is required. It is a quick, no-cost way to assess readiness and identify weak areas before booking an official exam.
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Free GED Practice Test
Test-Guide's free GED diagnostic practice tests covering all four GED subjects (Reasoning Through Language Arts, Math, Science, Social Studies) with instant scoring and answer explanations. Includes study guides for each section. For GED candidates who want free, realistic practice before the official exam.
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GMAT Official Starter Kit
The free official GMAT prep from GMAC, the exam maker, including a full-length practice exam, a question bank, and answer explanations. Requires only a free mba.com account. For GMAT candidates who want the closest possible free practice to the real test experience.
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Khan Academy MCAT
The official free MCAT prep collection created in partnership with the AAMC, covering biology, chemistry, physics, psychology, and critical analysis and reasoning skills with videos and practice questions. For pre-med students preparing for the MCAT without paid prep courses.
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USMLE Official Practice Materials
The USMLE program's official free practice materials for Step 1, Step 2 CK, and Step 3, including sample test questions and tutorial software. Built by the exam's own administrators. For medical students and IMGs preparing for USMLE exams with authoritative free practice items.
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PMP Practice Questions
Oliver F. Lehmann's free question bank of hundreds of PMP practice questions based on the PMBOK Guide and the PMP exam content outline, with answers, explanations, and a companion study book. For project managers preparing for the PMP exam on a budget.
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AWS Cloud Practitioner Essentials
AWS's official free foundational course in AWS Skill Builder, covering cloud concepts, core services, pricing, security, and support. Includes knowledge checks and is the recommended starting point for the AWS Certified Cloud Practitioner exam. For beginners aiming at AWS certification.
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GED Test Previews (Free Practice Tests)
Official free GED test previews from the makers of the exam, covering all four subjects at about 25% of the real test length. Includes multiple-choice, select-an-area, drop-down, and fill-in-the-blank questions similar to the actual GED. Free to take online with no payment, and a screen-reader-friendly practice test version is also available. The best way to sample the real GED format before paying for full practice tests.
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Medbullets Step 1 QBank
Free USMLE Step 1 question bank with over 1,000 free USMLE-style questions and detailed explanations, built as a learning community for medical students. Also offers free study guides, flashcards, and collaborative notes across Step 1 topics. A genuinely free QBank with no credit card required for the core content. One of the most substantial free USMLE Step 1 practice resources available.
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PMAspirant Free PMP Exam Simulator
Free full-length PMP exam simulator with 180 multiple-choice questions aligned to the PMP Exam Content Outline (People, Process, Business Environment domains). The interface mimics the real Pearson VUE testing environment, including timer and section structure. Questions revised to match the difficulty of PMI Study Hall moderate and hard items. Also includes free drag-and-drop question simulators and a process mapping game for extra practice.
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AWS Skill Builder Digital Training
AWS's official free digital training hub with 600+ self-paced courses, including the full AWS Cloud Practitioner Essentials course and the Cloud Essentials Learning Plan. Covers every AWS service and skill level with knowledge assessments, plus AWS Cloud Quest game-based learning. A free account unlocks the courses; paid subscription only adds labs and extras. The canonical free path to AWS Cloud Practitioner certification prep.
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Microsoft Learn Training Paths
Microsoft's free official learning platform with structured training paths for certifications like Azure Fundamentals, Microsoft 365, and Power Platform. Includes modules, hands-on sandboxes, practice assessments, and certification exam prep content at no cost. Free Microsoft Learn accounts let you track progress and earn badges and trophies. A comprehensive free resource for Microsoft certification journeys.
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