YOUR KNOWLEDGE IS YOUR EDGE

Your Second BrainFor Research, Writing & Lifelong Learning

Save what matters. Write what you think.Recall summarizes, organizes, and connects it for you.Then chat with your knowledge, before the generic internet.

Save unlimited content

Automatic summaries

Chat with your library

Always yours, fully exportable

No credit card · Unlimited saves on free plan · 24 Hour Human Support

ADD CONTENT

Your AI second brain

Podcast saved in Recall AI knowledge base: Alcohol and your sleep

Alcohol and your sleep

Podcast

Why We Sleep

Book

Intro to Large Language Models

YouTube
Movie note card in Recall knowledge base: Interstellar (2014)

Interstellar 2014

Movie

Founder Mode

Blog
PDF research paper in Recall knowledge base: Attention Is All You Need

Attention is all you need

PDF

My Daily Sleep Journals

Note

Atomic Habits

Book

Trusted by 500,000+ professionals

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WHY IT MATTERS

Stop Outsourcing Your Thinking

Most people now ask chatbots before they ask themselves. A second brain changes the order: your own notes, articles, videos, PDFs, and ideas become the first source of context, not an archive you forget.

Frictionless Capture

Save articles, YouTube videos, podcasts, PDFs, and notes from the web or your phone in one click, so useful knowledge stops disappearing into tabs and bookmarks.

Self-Organizing Library

AI summaries and automatic tags sort everything you save, so your knowledge stays organized without folders to maintain by hand.

Chat With Your Knowledge

Chat across your full library, selected sources, or the web. Recall cites your own saved sources first, so old articles, videos, notes, and PDFs become context for new questions.

Connected Knowledge Graph

Recall links related ideas in a knowledge graph and resurfaces related content while you browse, so you see how your knowledge connects and rediscover it in context.

Enhanced Long-Term Memory

Built-in quizzes and spaced repetition resurface the most important ideas on schedule, turning what you save into lasting memory.

Private and Portable

Recall never trains AI on your content. Export everything anytime, and use the API or MCP to connect your knowledge to the AI tools and workflows you already use.

BUILT FOR YOUR WORK

The Best Second Brain for Research, Writing, and Lifelong Learning

One knowledge base that grounds every answer in what you've saved, whatever you're working on.

Research

  • Capture sources the moment you find them
  • Chat across your whole library at once
  • Every answer cites the sources it used, so you can verify each claim

Writing

  • Save past writing so drafts match your voice
  • Build on ideas and best practices you've already worked out
  • Pull in your own highlights, summaries, and notes

Lifelong Learning

  • A knowledge base that compounds over a lifetime
  • Keep notes, ideas, and journals connected and searchable
  • Revisit and chat with the thoughts that shaped you

HOW TO BUILD A SECOND BRAIN

Build a Second Brain That Compounds

Start small, save what matters, and let your knowledge compound over time.

Google, content source for your Recall knowledge base
Wikipedia, save articles to your Recall knowledge base
YouTube, summarize videos in Recall
Spotify, summarize podcasts in Recall

01

Capture What Resonates

One click to save articles, YouTube videos, podcasts, PDFs, webpages, and notes.

Take rich notes with tables and to-do lists in our block-style editor.

Use browser extensions, iOS, Android, or mobile share sheets wherever you already learn.

Business

Design

Technology

Education

Culture

02

Summarize and Organize Automatically

AI summaries distill the key ideas as soon as you save.

Automatic tags and categories replace manual folders.

A knowledge graph connects related ideas across your full library.

Choose ChatGPT, Claude, or Gemini to chat with your Recall knowledge base

03

Ask Your Own Knowledge First

Chat with your full archive, selected sources, a single card, or the internet.

Recall cites your saved sources so answers stay grounded in what you learned.

MCP and API access bring your saved knowledge into external AI workflows.

MULTIPLE CHOICE

How does REM sleep affect your body?

04

Review, Remember, and Reuse

AI quizzes turn saved content into active recall.

Spaced repetition resurfaces important ideas before they fade.

Use your knowledge base to write, research, study, and make better decisions.

SIDE BY SIDE

Recall vs. Traditional Second Brain Apps

A quick look at what changes when your knowledge system is built around AI capture, retrieval, and memory instead of manual filing.

FeatureRecallTraditional Notes Apps
Capture

Best for

A lifelong AI knowledge base for web content, videos, podcasts, PDFs, and notes

Self-authored notes, manual workspaces, or project-specific research

Supported sources

Articles, YouTube videos, podcasts, PDFs, webpages, highlights, and rich notes. See all supported content

Usually strongest for typed notes, documents, or manually imported sources

Organization

Setup required

Automatic summaries, tags, categories, and knowledge graph connections

Folders, templates, tags, backlinks, or databases you maintain yourself

Connections

Linking related content

Automatically connects related content, resurfaces it while you browse, and maps it in a knowledge graph you can also edit by hand

Manual backlinks and tags you create and maintain yourself

Retrieval

Finding old knowledge

Semantic search and library-wide chat that cites your saved sources first

Search, backlinks, folders, or manual graph navigation

Memory

Long-term retention

Built-in quizzes and spaced repetition

Usually requires flashcard plugins, manual review, or a separate study tool

Workflow

AI assistant access

MCP and API access connect your saved knowledge to external AI workflows MCP docs

Often limited to exports, plugins, or one-app AI features

Free plan

Unlimited saves with limited AI summaries

Varies by app; many limit sync, storage, AI, or collaboration

Quick comparison: choose a manual notes app if you want to design every folder, tag, and template yourself. Choose Recall if you want an AI knowledge base that captures, summarizes, organizes, resurfaces, and remembers knowledge automatically.

See the 16 best second brain apps compared

USER REVIEWS

People Use Recall as Their Second Brain

Join over half a million people using Recall to learn faster and remember more.

I use Recall on a daily basis to cultivate and build a hand-picked database of information. The end result is like having a personalized AI loaded with sources pre-screened for quality.
Roses, Human Rights Worker, Recall user testimonial

Roses

Human Rights Worker

I've been building several second brains for years. Recall is one of those tools that feels like a drastic improvement on what you're already using.
Dave Katague, AI Educator, Recall user testimonial

Dave Katague

AI Educator

I run two parallel careers, which means staying current across rapidly evolving topics. Recall is the front door to my entire knowledge workflow.
Fernand, Head of Technology, Recall AI knowledge base user review

Fernand

Head of Technology

Ready to Build Your Second Brain?

Start saving what you learn today, then let Recall summarize, organize, resurface, and help you remember it.

No credit card required · Unlimited saves on free plan · 24 Hour Support

SECURITY POLICY

You're safe with us

We do not use your data for any other purpose than providing a service to you.

Illustration: You own your data in your Recall AI knowledge base

Data ownership

Your data is yours and you have full control over it. We do not use your data for any other purpose than providing a service to you.

Illustration: Export your Recall knowledge base as Markdown

Data portability

You can export all your data anytime in Markdown format, putting the power of portability and accessibility directly in your hands.

Illustration: Privacy focused personal knowledge base storage in Recall

Privacy focused

Augmented browsing is local first, your knowledge base is stored safely in the cloud.

CAPTURE EVERYWHERE

Save From Your Browser or Phone

Your knowledge system only works if capture is effortless. Recall helps you save from the places where you already learn.

Install the browser extension

Download the mobile apps

Frequently Asked Questions About Second Brains

Looking for more? Visit our full FAQ for more detail.

Ready to Build Your Second Brain?

Save, summarize & chat with your content.

GET STARTED
IT'S FREE

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Recall web app on laptop, personal AI knowledge base for summarizing and chatting with your content