Personalized AI Tutor

TurnRawMaterialsIntoTrueMastery.

Ritsu turns any document into your personal AI tutor. PDF, video, slides... any source. In 30 seconds, an AI tutor that quizzes you, explains concepts, to help you truly understand.

Trusted by learners this week

What you get with Ritsu

What Ritsu Can Do

Replace your entire study stack.

Anki, Quizlet, Kahoot, ChatGPT, Notion — Ritsu does it all. From one upload.

0+

Source Formats

PDF, PPTX, YouTube, Web...

0+

Interactive Activities

Quiz, Flashcard, Mindmap...

0

Learning Modes

Ask Me, Exercise, Solve...

0

Tutor Styles

Funny, Nerdy, Chill...

Ritsu Is The Best For
Students
Self-Learners
Engineers
Researchers
Educators
Professionals
Problems — Solutions

You're not learning.

Reading, watching, highlighting — none of it is learning. Here's what actually works.

The Problem

Passive learning. Cramming. Forget.

You read, highlight, rewatch — the same cycle. You feel busy but nothing sticks. The exam proves it every time.

VS
The Solution

Active learning. Mastery. Remember.

Ritsu turns your material into quizzes, exercises, and explanations that force your brain to think, not just consume.

The Problem

500 pages. Where do you start?

Your textbook is huge, your slides are scattered, and the exam covers everything. Paralysis kicks in.

VS
The Solution

One upload. A complete study plan.

Drop any file. Ritsu breaks it into bite-sized topics with quizzes and activities — in 30 seconds.

The Problem

Making flashcards takes forever.

You know Anki works. But creating cards one by one takes longer than the studying itself.

VS
The Solution

Upload once. Get everything.

One file generates quizzes, flashcards, mindmaps, and 17+ activity types. Hours of prep — zero effort.

3 problems solved. Infinite potential unlocked.
Powerful Features

What makes Ritsu different

Every feature designed to make you learn faster, retain longer, and actually enjoy studying.

PDF
PPTX
DOCX
YouTube
Web
Markdown
Code
Images
Universal Input

Works with whatever you're studying.

PDF textbooks. YouTube lectures. Web articles. Research papers. Slide decks. Code files. Just drop it in — Ritsu handles the rest.

PDFPPTXDOCXYouTubeWebMarkdownCode
▸_ Command Palette
Quiz
Flashcard
Mindmap
Timeline
Crossword
Diagram
Code
Match
>
Interactive Learning

17+ ways to learn. One upload.

Quiz. Flashcard. Mindmap. Timeline. Crossword. Drag-and-drop. Diagram. Code exercise. All auto-generated from your material — not templates.

/quiz
Generate quiz
/flashcard
Memory cards
/mindmap
Visual map
/timeline
Time sequence
/crossword
Word puzzle
/diagram
Visual diagram
/code
Code exercise
/match
Match pairs
Old way

What is ReLU?

A linear function
An activation fn ✓
A loss function
An optimizer
Click. Next. Repeat. 😴
VS
Ask Me mode

Explain backpropagation in your own words.

Deep Learning

Not just quizzes. Real learning conversations.

Ask Me challenges you to explain concepts back. Exercise gives you problems to solve step by step. Solve throws real-world scenarios. 7 modes, each designed to build a different type of understanding.

/askme/exercise/solve/upthink/adaptive
Mastery Engine

Built for mastery. Not memorization.

Every activity transforms knowledge — not just tests it. Concept maps connect ideas across chapters. Deep explanations use analogies from your experience. The goal isn't to pass. It's to truly understand.

Concept MapsCompareAnalogiesDeep ExplainFeynman
🎯 You got 4/5 on Neural Networks!
🐵Funny
🤓Nerdy
😎Chill
🤗Supportive
🐵
Emotional AI

An emotional tutor that celebrates with you.

Choose from 10 personality styles — funny, supportive, nerdy, chill, and more. Animated stickers and emotional messages at every milestone. Because learning should feel as good as getting it right.

FunnySupportiveNerdyChillEnergeticSarcastic
Just 1 Minute

3 steps to your first lesson

Three simple steps to transform any content into your personal learning experience

01

Drop your file

Upload any document. PDF, slides, YouTube link — 12+ formats.

Any textbook, any slides, any video
No copy-paste. No reformatting.
One file. That's all it takes.
~5 seconds
02

AI builds your plan

Ritsu analyzes your material and creates a structured learning path automatically.

No manual organizing needed
Topics ordered by difficulty
Activities auto-generated
~30 seconds
03

Start mastering

Take quizzes, flip flashcards, explore concepts. Track your progress as you go.

No more passive learning
Your AI tutor celebrates with you
Track mastery on your heatmap
At your own pace
Real Results

Loved by deep learners

4.9/5 from knowledge seekers
I was drowning in 800-page textbooks. Ritsu turned my study sessions from 6 hours of highlighting to 2 hours of active learning. I scored 15 points higher on my boards.
SC
Sarah C.
Medical Student, University of Melbourne
+15 points on USMLE Step 1
I upload documentation, API specs, research papers. The /explain command is like having a senior engineer on call 24/7. I've cut my ramp-up time on new projects by half.
MJ
Marcus J.
Software Engineer, Self-Learner
50% faster onboarding
I'm 58 and learning machine learning. The spaced repetition actually works - I remember concepts I learned months ago. The commands make me feel like a power user.
PW
Patricia W.
Career Changer, AI Learner
3 courses in 2 months
SC
MJ
PW
Join thousands of learners transforming how they learn
Got Questions?

Questions? Answers.

Everything you need to know before getting started.

ChatGPT is a general chatbot. You paste text, it responds. Ritsu is purpose-built for learning. Upload your entire document — Ritsu reads all of it, builds a structured plan, and generates 17+ interactive activities (quizzes, flashcards, mindmaps, exercises). It remembers your material across sessions. ChatGPT forgets everything when you close the tab.

Ready to transform your learning?

You have the material. Now make it teach you.

Upload your first document. It's free.

Free forever
No credit card
See pricing