Best Free IB Study Resources in 2026

No single website should be your entire IB strategy. The strongest free setup combines official curriculum information, clear explanations, targeted practice, and a system for reviewing mistakes.

Start with official IB sources

Use the IB website and materials supplied by your school to confirm syllabus editions, assessment components, examination schedules, and permitted reference documents. Blog articles and study platforms can explain those requirements, but they should not replace the primary source.

Study to Learn

Study to Learn publishes free topic previews and complete interactive formula or data references for supported IB subjects. Its strongest fit is students who want a syllabus path and readable KaTeX equations rather than image-only sheets. A free account adds complete lessons, quizzes, flashcards, and progress.

The limitation is current subject breadth: public courses cover Math AA and Physics rather than pretending unfinished catalogue subjects are complete.

Use the public pages to diagnose a topic and understand notation, then move into your account only when you need the full sequence and saved progress. For mathematics and physics, keep the interactive reference open beside practice so that every equation is connected with variable definitions rather than memorised as a screenshot.

Revision Village

Revision Village is known for IB-focused explanations and question practice across a wide range of subjects. Some resources can be tried without payment, while broader access depends on the current product offering. Check the site directly because access and pricing can change.

It is particularly useful when you need more exam-style practice after understanding a topic. Students should still analyse errors instead of measuring revision only by the number of questions completed.

Official school and teacher materials

Your teacher’s course outline, feedback, licensed question access, and school library are easy to overlook because they do not appear in a web search. They are often the best source for the syllabus edition, internal deadlines, practical requirements, and the way your class is being prepared.

Ask what material you are permitted to keep, share, or upload. Past assessment tasks and copyrighted examination content may have restrictions even when a file is easy to find online.

Knowt

Knowt provides public notes, flashcards, and study tools across many courses. Its breadth can make it useful for quick retrieval practice and seeing another explanation. Because resources can vary by creator, compare important claims with your syllabus and trusted class materials.

Clastify

Clastify publishes IB articles and examples, including material related to formula booklets and internal assessment. Examples can help you understand structure and expectations, but they should never be copied or treated as a substitute for your own investigation.

Tutopiya and other teaching platforms

Tutopiya publishes IB study articles and subject guides alongside tutoring services. Free guides can be useful for overview and planning; evaluate any commercial service based on the actual teacher, curriculum match, and support offered rather than a generic ranking.

How to build a free resource stack

Choose one primary resource for each job:

• Requirements: official IB and school sources
• Concept explanations: class notes plus one trusted learning platform
• Formula navigation: the official document and an annotated interactive reference
• Recall: self-made flashcards or a reviewed deck
• Practice: teacher-provided, licensed, or platform questions
• Feedback: markschemes, teachers, and a written error log

Using five sites for the same explanation often creates the feeling of work without retrieval or practice. Set a time limit for searching. If you still do not understand the idea, record the exact question you need answered and ask a teacher or classmate.

Match the resource to the stage of learning

At the start of a topic, use a structured explanation and build a small set of definitions or methods. During consolidation, close the explanation and retrieve the idea. During application, choose mixed questions so the method is not announced in advance. During examination preparation, use timed work under the correct conditions and devote at least as much attention to correction as completion.

A resource that is excellent for introduction may be poor for final practice. A large question bank may be frustrating before the model is understood. Decide which stage you are in before opening another tab.

A sample zero-cost weekly stack

On Monday, read the syllabus target and one explanation. On Tuesday, reproduce the idea without notes. On Wednesday, complete three focused questions. On Thursday, use flashcards for definitions and conditions. On Friday, complete a mixed set. On Saturday, correct the set and update an error log. On Sunday, schedule the weakest skill for the following week.

The tools can change, but each activity must produce evidence: a recalled explanation, worked solution, marked response, or repaired error.

What makes a resource trustworthy?

Look for a named syllabus edition, visible update dates, original explanations, complete reasoning, correction contact, and honest scope. Be cautious when a page promises a grade, presents unattributed material, hides the author and update date, or publishes exam facts without a primary source.

Check whether comparison articles explain how products were evaluated and whether commercial relationships are disclosed. Confirm time-sensitive claims—examination dates, permitted materials, syllabus transitions, admissions conversions, and prices—at their primary source.

AI explanations deserve the same checks. Ask the tool to show reasoning, compare the result with class material, and never treat confidence as evidence. Do not upload protected assessment material or personal information simply because a study feature invites it.

Review the stack once a month

Remove any tool that repeatedly creates searching, copying, or duplicate flashcards without improving recall or marked work. Keep the smallest set that covers your current subjects and revision stage. If you add a paid product later, define the missing job first and use its trial or sample material to test that job.

Record where each resource is strongest and where it needs checking. A simple note such as “good calculus explanations; verify syllabus labels; use teacher questions for assessment practice” prevents you from expecting one platform to do everything. As examinations approach, reduce switching and move towards the exact documents, conditions, and response formats your school confirms.

The best free IB resource is the one that helps you do something specific: understand, retrieve, practise, correct, or plan. Build a small stack that covers those jobs and spend the saved search time actually studying.