2nd I is Your Personal Knowledge Bank

Write down your small daily memories and thoughts here as notes. Over time, this collection will become an endless source of your thinking power. In other words, one note today can turn into 365 pieces of knowledge in a year.


Here, a “note” refers to an Entity. Entities are important pieces of information that may be useful in the future, such as people, addresses, mobile numbers, medicine names, memories, education, or ideas.

Here, a 「Note」 means an Entity. Entities are important things that may be useful in the future — such as people, addresses, mobile numbers, medicine names, memories, education, or ideas.

Get Started Free
Hero Image
Who We Are

Cultivate Your Digital Brain

2ndi.website is your personal place to save important thoughts, memories, and information as simple notes. Write things in plain Language ΓÇö just like you think. Over time, these notes automatically connect with each other and become a powerful source of knowledge you can search, review, and learn from.
  • Save only information that may be useful in the future.
  • Related items will be linked with each other automatically.
  • Review your notes weekly or monthly.
  • Start small ΓÇö what you write in one day can become very valuable later.

Why You Need It?

Your first memory (your brain) forgets details, gets overwhelmed, and mixes things up. So your second memory is alaways here.

Voice Memories

Record and transcribe your thoughts instantly. Keep your voice alive.

Secure Vault

Bank-grade encryption for all your passwords and sensitive documents.

Knowledge Graph

Visualize connections between people, places, and events in your life.