Best 9 Tools for Graphing Relationships in 2025

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.

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.

Joplin is a powerful tool for capturing and organizing your thoughts, to-do lists, and information. It supports rich text and Markdown formatting, allowing you to create notes with images, attachments, tables, and even code snippets. You can clip web pages directly from your browser and save them as notes for later reference.

Tana is an AI-powered workspace that brings together the best of note-taking apps and databases into one unified platform. Think of it as a digital brain that helps you capture, connect, and organize all your information in a way that actually makes sense.

Anytype is a tool for organizing your notes, tasks, files, and projects while keeping everything private on your device. You create content using objects, which are like structured notes with properties you can customize. For example, a book object can have an author, rating, and notes all connected together.

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.

AppFlowy is a workspace application that brings together your notes, tasks, wikis, and projects. Unlike cloud-only tools, you can run AppFlowy entirely on your own computer or host it yourself for complete data control.

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.