Top second-brain AI tools

ArcaNotes is a modern note-taking platform that combines micro-note functionality with AI-powered organization and retrieval features, allowing users to capture and manage knowledge efficiently while maintaining privacy.

• Freemium

File Organizer 2000 is an AI-powered Obsidian plugin that offers automatic note organization, handwriting transcription, and intelligent chat features to help users manage their digital notes efficiently.

• Freemium
• From 119$

Beloga is an AI-powered research and knowledge management platform that combines multiple data sources into a unified workspace, helping users save time and make better decisions.

• Freemium
• From 20$

Quivr is an AI assistant that leverages private and enterprise knowledge, continuously learning and improving with each interaction to enhance knowledge discovery.

• Freemium
• From 15$

Rabrain is a retrieval-augmented second brain app with powerful bookmark management, AI-powered search, and knowledge organization features.

• Freemium
• From 9$

Klarity transforms your spoken words into organized text, from notes and emails to creative content and meeting summaries. It offers seamless integrations with popular productivity tools.

• Freemium
• From 50$

Melon is an AI-powered knowledge management tool that helps users connect insights across their saved content and boost their thinking through personalized AI interactions.

• Free

Clipmate is an AI-powered second brain that automatically organizes bookmarks, screenshots, and saved content across multiple platforms, featuring semantic search and intelligent categorization.

• Freemium
• From 12$