Best 3 Tools for Creating Second Brain in 2025
Build a digital extension of your mind to store ideas, notes, and knowledge systematically. Perfect for productivity enthusiasts who want to enhance memory, creativity, and long-term learning.

Obsidian

Obsidian
Obsidian is a note-taking app that works with plain text files stored directly on your device. You can write notes, link them together, and see how your ideas connect through a visual graph. Unlike cloud-based tools, everything stays private on your computer.

Logseq

Logseq
Logseq is an open-source note-taking tool that helps you capture and connect your thoughts. Everything you write is stored as plain text files on your device, giving you complete control over your data. You never have to worry about a company shutting down or changing their prices because your files belong to you.

SiYuan

SiYuan
SiYuan is a personal knowledge management system that treats every piece of content as a block. These blocks can be linked, referenced, and organized in multiple ways. Unlike traditional note-taking apps, SiYuan gives you complete control by storing everything locally on your device.