Your AIKnowledgeWorkspace

Upload sources, ask grounded questions, and generate cards, notes, tests, and walkthroughs in one workspace.

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Used by 300,000+ learners, educators, researchers, and professionals in 106+ countries

The London School of Hygiene & Tropical MedicineKing's College LondonThe University of Hong KongUniversity of OxfordUniversity College LondonHarvard UniversityUniversity of CambridgeStanford UniversityJohns Hopkins University
The London School of Hygiene & Tropical MedicineKing's College LondonThe University of Hong KongUniversity of OxfordUniversity College LondonHarvard UniversityUniversity of CambridgeStanford UniversityJohns Hopkins University
How it works

From source to mastery
in three simple steps

Step 1 of 3
01UPLOAD

Add your sources

Drop in PDFs, slides, videos, or paste text. Memo handles it allโ€”processing your content instantly so you can start learning right away.

Add source upload panel
Step 2 of 3
02CHAT

Ask anything

Have a conversation with your documents. Ask questions, request explanations, or dive deep into specific topics. Get grounded answers with citations from your files.

Memo AI chat interface
Step 3 of 3
03INSIGHTS

Generate outputs

Turn your sources into flashcards, practice tests, notes, summaries, and audio walkthroughs in seconds.

Memo Studio generated study materials
Source Ingestion

Turn information
into understanding

Upload PDFs, YouTube videos, websites, and text. Memo's ingestion pipeline parses each source, maps key concepts, and builds structured context so every output starts from what your materials actually contain.

Upload anything

Upload PDFs, YouTube videos, websites, or text. Memo's intelligent ingestion pipeline processes every source so your notebook is fully searchable and connected.

Ask anything, get grounded answers

Choose from Claude, DeepSeek, ChatGPT, Gemini, or Memo 1. Get answers with citations to exact pages or timestamps, grounded in your uploaded sources.

Content Studio

One workspace, multiple output formats

Memo Studio turns your sources into notes, mindmaps, tutor sessions, practice tests, podcasts, and more. Pick the format that fits your workflow.

Get Started Free

Notes

Block-based editor with AI-powered writing

Memo notes editor preview

Practice Tests

Generate MCQs and short-answer exams from your sources

Memo practice test preview

Mindmap

Map key concepts and relationships at a glance

Memo mindmap preview

Tutor

Talk through ideas with your AI professor

Memo tutor mode preview

Flashcards Mode

Create and review cards in one focused flow

Memo flashcards mode preview

Track

Follow a guided learning path from your sources

Memo track mode preview
Flashcard Mode

Master every card with multiple review styles

Move between column, toggle, list, typing, and learn workflows without leaving your deck. Study the way that helps you retain more.

Get Started Free

An AI agent that builds your flashcards

Add your sources and Memo does the heavy lifting. The agent reads your material, picks what matters, and generates cited cards linked to the exact page or timestamp.

  • Reads all your sources together and creates cards automatically
  • Goes through your sources page by page
  • Shows exactly where every card came from with citations

Column View

Scan and organize your flashcards in a focused column layout

Flashcard column view

Toggle + List View

Switch between toggle and list views for rapid card review

Flashcard toggle and list views

Typing View

Use typing mode to strengthen active recall

Flashcard typing mode

Learn Mode

Review cards with guided pacing and progress feedback

Flashcard learn mode

Normal Chat

Chat naturally with context while studying your deck

Learn mode normal chat

Learn Manual Grade

Grade answers manually for tighter control over difficulty

Learn mode manual grade
Track Mode

Let AI walk you through
your documents

AI Professor mode transforms dense documents into guided walkthroughs. Voice explanations, interactive Q&A, and comprehension checksโ€”like having an expert narrate your reading.

Voice tutoring

Have a real conversation while pages auto-flip as AI explains

Voice tutoring lesson preview

Comprehension checks

Verify you understood the key points

Comprehension checks preview

Auto page-flip

Follows along with your PDF

32+ languages

Listen and speak in any language

Explains visuals

Narrates diagrams and charts

Hello
Bonjour
Hola
ไฝ ๅฅฝ
ใ“ใ‚“ใซใกใฏ
ะŸั€ะธะฒะตั‚
Ciao
Olรก
Hallo
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เคจเคฎเคธเฅเคคเฅ‡
์•ˆ๋…•ํ•˜์„ธ์š”
Merhaba
Xin chร o
Sawubona
Czeล›ฤ‡
Hello
Bonjour
Hola
ไฝ ๅฅฝ
ใ“ใ‚“ใซใกใฏ
ะŸั€ะธะฒะตั‚
Ciao
Olรก
Hallo
ู…ุฑุญุจุง
เคจเคฎเคธเฅเคคเฅ‡
์•ˆ๋…•ํ•˜์„ธ์š”
Merhaba
Xin chร o
Sawubona
Czeล›ฤ‡

Speech output in 32 languages. Input understanding across up to 99 languages.

Under the hood

Built on intelligent
foundations

Memo's RAG engine is deceptively simple to use, but under the hood lies a sophisticated pipeline that ensures accurate, contextual, and trustworthy AI responses.

Phase 1 of 6
010203040506
PipelineDOCUMENT INGESTION
Phase 01

Parse & understand your content

Memo's ingestion engine processes PDFs, slides, videos, and text with intelligent parsing. We extract text, tables, images, and structureโ€”preserving context that other systems lose.

Powered by Memo Parser
Specification
  • 1.1Multi-format parsing (PDF, PPTX, DOCX, video)
  • 1.2OCR for scanned documents and images
  • 1.3Table and chart extraction
Phase 2 of 6
010203040506
PipelineSEMANTIC CHUNKING
Phase 02

Intelligent content segmentation

Unlike basic chunking that splits text arbitrarily, our semantic chunker understands document structure. It creates meaningful segments that preserve context and relationships between concepts.

Powered by Semantic Engine
Specification
  • 2.1Context-aware boundary detection
  • 2.2Hierarchical chunk relationships
  • 2.3Metadata preservation and enrichment
Phase 3 of 6
010203040506
PipelineVECTOR EMBEDDING
Phase 03

Transform meaning into mathematics

State-of-the-art embedding models convert your content into high-dimensional vectors that capture semantic meaning. Similar concepts cluster together, enabling intelligent retrieval.

Powered by OpenAI Embeddings
Specification
  • 3.11536-dimensional semantic vectors
  • 3.2Multi-lingual understanding
  • 3.3Real-time index updates
Phase 4 of 6
010203040506
PipelineINTELLIGENT RETRIEVAL
Phase 04

Find exactly what matters

When you ask a question, our retrieval system doesn't just match keywordsโ€”it understands intent. Hybrid search combines semantic similarity with keyword matching for precise results.

Powered by Memo Retriever
Specification
  • 4.1Hybrid semantic + keyword search
  • 4.2Cross-document reasoning
  • 4.3Relevance scoring and reranking
Phase 5 of 6
010203040506
PipelineAI GENERATION
Phase 05

Synthesize intelligent responses

Retrieved context is fed to your choice of AI modelโ€”GPT-4, Claude, or Gemini. The model synthesizes information from multiple sources into coherent, accurate answers grounded in your documents.

Powered by Multi-Model AI
Specification
  • 5.1Multi-model support (GPT-4, Claude, Gemini)
  • 5.2Context-aware response generation
  • 5.3Source citation and attribution
Phase 6 of 6
010203040506
PipelineQUALITY ASSURANCE
Phase 06

Verify accuracy & citations

Every response is validated against source documents. We verify claims, check for hallucinations, and ensure citations are accurateโ€”so you can trust what Memo tells you.

Powered by Memo Validator
Specification
  • 6.1Hallucination detection
  • 6.2Citation verification
  • 6.3Confidence scoring
Our story

Built by 2 med students with a child's imagination

Memo started when two medical students got tired of losing insights buried in hundreds of pages of dense material. So we built an AI workspace that actually helps you retain what you readโ€”whether that's research papers, technical docs, or the quarterly report you've been putting off.

About us
Our Team of 2 Co-founders
Testimonials

Loved by learners
around the world

Don't just take our word for it. Join 300,000+ people who retain more of what they read with Memo.

From our founder

Welcome to the age of
AI-native knowledge

The greatest breakthroughs in human potential come when we remove the barriers to knowledge acquisition. Yet our tools for processing information remain stubbornly inefficientโ€”fragmenting attention across apps, losing context, forgetting what we read.

We're all drowning in information. Researchers sift through hundreds of papers. Professionals juggle reports, docs, and endless updates. Students face more material than ever before. The volume keeps growing, but our ability to retain it hasn't changed.

The root issue? We were never given tools designed for how memory actually works.

AI represents an unprecedented opportunityโ€”not just to manage information, but to truly internalize it. Our AI-first platform is built on a unified system with three components designed to transform how you work with knowledge.

Content Processing extracts knowledge from any sourceโ€”PDFs, videos, audioโ€”understanding text, diagrams, and relationships automatically. AI Copilot helps you explore, question, and synthesize what you've uploaded. Retention Tools use active recall and spaced repetition to make knowledge stick.

All three work together and improve with every session. That's what makes Memo a complete AI-native knowledge workspace. Join me on this journey, and let's build something amazing together.

With love,

Jason

Jason Chan

Jason Chan

Co-founder of Memo

Platform features

The complete AI-powered
knowledge workspace

Content Processing

In-line citations

Image processing

Evidence-based feedback

Text-to-speech and speech-to-text

99+ Languages Supported

Code Display and Understanding

YouTube video support

Content Processing
Get started

Your knowledge, organized.

Join 300,000+ people who think smarter with Memo.

Cited answers you can verify

Control which sources Memo uses

No credit card required

No credit card required ยท Free forever plan