Best Knowledge Graph Products

Smart Bookmarks, with With Notes, Highlights, History, and Sharing.

freemium

Notivo is a private, per-person notebook for managers. Capture feedback, commitments, and 1:1 context as it happens — from web, iOS, WhatsApp, email, ChatGPT, or Claude — then get it back later, organized by person.

Key Notivo features:

Prepare for a 1:1 Write better feedback Don’t give an unfair review by accident Follow up on what was promised

Try for free freemium €15 / Monthly (Pro, 14-day AI trial)

Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.

Key Evernote features:

Cross-Platform Compatibility Organizational Tools Web Clipper Collaboration Features

All your articles, photos, video & content from web & apps in one place.

Key Raindrop.io features:

User-Friendly Interface Cross-Platform Availability Rich Bookmark Management Collaborative Features

Open Source freemium

A second brain, for you, forever. Obsidian is a powerful knowledge base that works on top of a local folder of plain text Markdown files.

Key Obsidian.md features:

Local-first Markdown Support Bidirectional Linking Customizability

All-in-one workspace. One tool for your whole team. Write, plan, and get organized.

Key Notion features:

All-in-One Workspace Highly Customizable Collaboration Features Cross-Platform Availability