PDF and lecture summaries
Upload course documents and slides, add a web link or paste text. Organize scattered material into readable summaries and knowledge outlines.
RRviewer X · AI learning workspace
AI cheatsheet generator
for your study materials.
Turn PDFs, Word documents, lecture slides and class notes into a concise cheat sheet. RRviewer X helps organize key concepts, formulas and review questions into summaries, study guides or flashcards.
Upload and generate as a guest. Sign in to manage courses, review history and learning conversations.
Built around your materials
Read, organize, review and ask questions
Cheat sheets, study guides and flashcards
Choose a summary for quick reference, a detailed study guide for context, or Q&A and flashcards for active recall. Match the format to the way you want to review.
Courses and learning conversations
Sign in to organize sources by course, revisit generated content and ask follow-up questions about your materials. Work in Chinese or English.
Getting started
How to make a cheat sheet from a PDF or class notes
Add your course materials
Upload a PDF, Word document or slide deck, add a web link, or paste class notes. Select the sources relevant to your review.
Choose your review format
Select a summary for a concise reference sheet, a detailed outline for more context, or questions and flashcards for practice. Choose English or Chinese output.
Generate, check and save
Check definitions, formulas and conclusions against the source, then copy or download your study sheet. Sign in to organize materials by course and revisit your history.
Frequently asked questions
What is RRviewer X?
RRviewer X, also known as RRviewer, is an AI cheatsheet generator and learning workspace from RUR1 INNOVATION & Skyru AI. Students and educators can turn course materials into study sheets, review questions and flashcards, then organize their work by course.
What is the difference between a cheat sheet and a study guide?
A cheat sheet, also written as cheatsheet, is a concise reference for concepts, formulas, conditions and steps. A study guide usually includes more context and review questions. Use the summary format for quick reference or choose a detailed outline, Q&A or flashcards for a different review goal.
How can I keep the output relevant to my exam?
Start with notes or slides that match your course scope. Choose a format, then compare the result with your instructor's topic list. Add missing ideas, remove unrelated material and check important formulas and conditions against the original sources.
Can I use it without signing in?
You can upload materials and generate review content directly in the workspace. Guest materials are used for the current session. Course management, history and follow-up conversations require an account.
What materials can I summarize?
Upload PDFs, Word documents, presentation slides and text files, or add web links and pasted text. Results depend on how well text can be extracted; scanned documents and complex layouts need extra checking.
Does it support Chinese and English?
Both Chinese and English interfaces are available, and you can choose the output language when generating content.
Can I treat the output as an answer key?
Study guides help you organize and understand material. Check important definitions, formulas and conclusions against your sources, course requirements and teacher's guidance.