Quick answer
MarkScheme ([markscheme.app/mark](/mark)) lets you upload photos of handwritten Cambridge past-paper answers and get feedback aligned to the official mark scheme (B1/M1/A1, essay bands, MCQ keys). Best workflow: self-mark strictly once with the PDF scheme, then use MarkScheme as a second pass before your next paper. Free [Cambridge courses](/courses) cover syllabus gaps topic by topic.
The best free revision resources for Cambridge exams in 2026 are a strategic combination of official materials and high-quality third-party tools. Your foundation should always be the past papers and mark schemes provided directly by Cambridge International. You can then supplement these with free, syllabus-aligned notes from sites like Physics & Maths Tutor or ZNotes, and finally, use a tool like MarkScheme to get your practice papers marked accurately for free.
Start with the Source: Cambridge International's Official Site
Before you look anywhere else, you must go directly to the source. Cambridge International publishes a treasure trove of past papers, mark schemes, and examiner reports on its public website and School Support Hub. These are the single most important resources for your revision because they are what your final exam will be based on. Past papers show you the exact format and style of questions, mark schemes show you how to earn the marks, and examiner reports reveal common mistakes to avoid. Using official materials is non-negotiable for serious revision.
Master the Content: Free Revision Notes
Once you have your past papers, you need concise, reliable notes to help you tackle the questions. Textbooks are detailed but can be overwhelming for revision. This is where free note providers excel. For STEM subjects like Biology, Chemistry, Physics, and Maths, Physics & Maths Tutor (PMT) is an outstanding resource, offering detailed notes, mind maps, and flashcards at no cost. For a broader range of subjects, including humanities and languages, ZNotes offers a library of free, community-written notes that are aligned with the Cambridge syllabuses, providing a solid foundation for your learning.
Apply Your Knowledge with Active Recall
Reading notes and mark schemes is passive learning. To achieve high grades, you must practise active recall: attempting to retrieve information from your brain without looking at the answers. The best way to do this is to complete full past papers under timed, exam-like conditions. Don't just read a question and then immediately look at the mark scheme. Force yourself to write a full, handwritten answer as you would in the real exam. This process of struggling to remember and structure an answer is what builds strong, lasting knowledge.
Check Your Work: Free AI-Powered Marking
Self-marking your own work is notoriously difficult and biased. It's easy to give yourself the benefit of the doubt or misinterpret the fine details of a mark scheme. This is where you can use a smart tool to get objective feedback. MarkScheme offers a free tier that allows you to upload a photo of your handwritten past paper answers and have them marked against the official Cambridge mark scheme. Using this [free past-paper marking service](/mark) gives you a much more realistic picture of your performance and helps you pinpoint exactly where you are losing marks. You can also use our free [topic-by-topic courses](/courses) to practise specific areas of the syllabus.
A Note on 'Freemium' Resources
For Cambridge best Cambridge and IB revision tools, many students come across websites that seem to offer free notes but quickly hit a paywall. It's important to distinguish between genuinely free resources and 'freemium' models. A popular site like Save My Exams, for example, provides some excellent introductory material for free, which can be helpful for getting an overview of a topic. However, the majority of their detailed revision notes, model answers, and extensive topic questions are locked behind a paid subscription. While not a free resource in the same vein as PMT or ZNotes, their free samples can still be a useful part of your initial research.
Comparing the Best Free Resources
For Cambridge best Cambridge and IB revision tools, to help you decide where to focus your time, here is a summary of the top free resources available for your Cambridge revision.
| Resource | Best for | Cost |
|---|---|---|
| Cambridge International | Official past papers, mark schemes & examiner reports | Free |
| Physics & Maths Tutor | STEM notes, mind maps & worked solutions | Free |
| ZNotes | Community-written notes for a wide range of subjects | Free |
| MarkScheme | Marking handwritten past papers & topic-by-topic courses | Free tier available |
| Save My Exams | Some introductory notes and questions | Freemium (most content is paid) |
Frequently asked questions
This section covers Frequently asked questions — ranked by what Cambridge examiners return to most often in past papers.
Are free resources good enough to get an A*?
Yes, absolutely. The official Cambridge past papers and mark schemes are the most crucial resources for success, and they are completely free. By combining these with high-quality free notes from PMT or ZNotes and using a tool for accurate self-assessment, you have everything you need to target top grades.
Where can I find examiner reports and what are they?
Examiner reports are published by Cambridge alongside past papers on their official website. They are essential reading, providing invaluable insight into the common mistakes students made in previous exams. They explain what examiners were looking for in top-scoring answers and highlight specific syllabus areas where candidates typically struggled.
Is it better to use a paid service instead?
Not necessarily. Paid services offer convenience by organising content, but they don't possess 'secret' information that isn't available elsewhere. The core materials for success—the past papers and mark schemes—are free. A disciplined student can achieve the highest grades by strategically using the excellent free resources listed in this guide.