Save Hours and Days with Instant Research, Planning, and Execution

Second Brain lets you chat with anything—books, PDFs, videos, websites, code, and more—saving you hours by turning complex research into immediate, actionable steps.

Get complete insights and build effective plans from a single, focused AI assistant designed for all your needs.

Document-Focused Insights

Document-Focused Insights
100% accurate, no off-topic info
Says “I don’t know” if answer isn’t there

Multi-Language & Source Compatibility

Chat in any language with any document
Combine sources for complete answers
Handles PDFs, videos, articles, and more

From Research to Actionable Plans

Turns insights into step-by-step plans
Saves time from research to execution
Perfect for instant, usable results

Multiple Sources.
One Powerful Answer.

combine and chat with multiple sources

Chat with Anything, in Any Language

Engage with your saved content in real-time—summarize documents, search for details, or ask questions effortlessly. From notes to PDFs and articles, the AI delivers clear, conversational responses. Upload research, ask questions, and get concise insights instantly.

Then with 1 click, save your conversations into Memory, so you can revisit, expand, and organize them anytime. Build a Second Brain that keeps your knowledge connected and accessible.

Start For Free

Memory: Build Your AI-Powered Virtual Memory

Capture and organize knowledge seamlessly in extendable documents. Second Brain lets you add content in three powerful ways:

  • Save AI Chat Responses: Preserve valuable insights from AI conversations instead of losing them forever.
  • Manually Add Items: Add notes, links, or ideas directly to your Memory.
  • Use the Chrome Extension: Save text, images, websites, or screenshots with a single click.

Everything is auto-organized, easily searchable, and ready to grow with you, helping you build an AI-powered virtual memory that evolves as you do.

Start For Free

Chrome Extension: Save Anything, Instantly Organized

Save text, images, entire webpages, or screenshots with a single click. The Chrome Extension adds content directly to your Memory, where it’s auto-organized and easy to find with powerful search.

From browsing to saving, seamlessly capture everything you need and keep your Second Brain updated, searchable, and always accessible.

Start For Free

Why Second Brain?

Save days of work by turning research, planning, and execution into actionable steps in minutes.

Powered by superintelligence, Second Brain combines AI chat, an organized Memory, and a seamless Chrome Extension to help you save, search, and interact with your knowledge effortlessly.

Without Second Brain

9 hours

With Second Brain

5 mins

Do Days of Work in Minutes
Turn time-consuming research and planning into fast, actionable steps.
Build Your AI-Powered Virtual Memory
Turn scattered knowledge into an organized, searchable system:

Save AI Chat Responses: Capture key insights instead of losing them.
Manually Add Notes: Store ideas, links, and projects as you build your knowledge base.
Seamlessly Save with the Chrome Extension: Grab text, images, webpages, and screenshots with one click—everything is auto-organized and searchable.
Multi-Source Mastery
Chat with multiple sources like PDFs, articles, YouTube videos, GitHub repos, and more—all in a single conversation.
No Guesswork
If Second Brain doesn’t have the answer, it simply says so. That means no off-topic or misleading information.

Think, Plan, and Execute with Lightning Speed—Powered by the Second Brain App

Start building your Second Brain today!

Start For Free

Chat with Anything, in Any Language

Engage with your saved content in real-time—summarize documents, search for details, or ask questions effortlessly. From notes to PDFs and articles, the AI delivers clear, conversational responses. Upload research, ask questions, and get concise insights instantly.

Then with 1 click, save your conversations into Memory, so you can revisit, expand, and organize them anytime. Build a Second Brain that keeps your knowledge connected and accessible.

Start For Free

Memory: Build Your AI-Powered Virtual Memory

Capture and organize knowledge seamlessly in extendable documents. Second Brain lets you add content in three powerful ways:

  • Save AI Chat Responses: Preserve valuable insights from AI conversations instead of losing them forever.
  • Manually Add Items: Add notes, links, or ideas directly to your Memory.
  • Use the Chrome Extension: Save text, images, websites, or screenshots with a single click.

Everything is auto-organized, easily searchable, and ready to grow with you, helping you build an AI-powered virtual memory that evolves as you do.

Start For Free

Chrome Extension: Save Anything, Instantly Organized

Save text, images, entire webpages, or screenshots with a single click. The Chrome Extension adds content directly to your Memory, where it’s auto-organized and easy to find with powerful search.

From browsing to saving, seamlessly capture everything you need and keep your Second Brain updated, searchable, and always accessible.

Start For Free