Best 7 Tools for Linking Ideas in 2025

Tangent Notes is a note-taking app that treats your thoughts like a web of connected ideas. When you write, you can link notes together using simple double brackets, just like Wikipedia. As you follow these links, Tangent remembers where you have been and shows your path with sliding panels that move horizontally across your screen.

Reor is a note-taking application that uses artificial intelligence to help you manage your knowledge. When you write notes, the app automatically finds related content from your other notes and shows them to you. This helps you discover connections you might have missed.

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 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 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.

Trilium Notes is a note-taking application that lets you organize information in a tree structure. Each note can contain text, images, code, diagrams, or other content types. Unlike basic note apps, Trilium allows one note to appear in multiple places in your tree without copying it, which is called cloning.

RemNote is a note-taking and learning platform that helps you remember what you learn. It combines several useful features in one place: organized note-taking, automatic flashcard creation, PDF reading and highlighting, and a smart review system.