The fastest note-taking tool that syncs everywhere.

IDEOI is the perfect tool for taking notes and turning them into knowledge.

Start taking notes Book a demo

30-day free trial. No credit card required.

The quickest way to write down ideas.

It's super fast to create a new note with text, images and PDFs and works on your phone and desktop.

Navigate to a note in the blink of an eye.

IDEOI allows you to find any note extremely fast even if you don't remember the exact name.

Turn notes into knowledge.

IDEOI helps you turn your notes into knowledge by connecting them to other notes.

Simple pricing

4.90€ / month / user

"IDEOI's biggest strength is its flexibility, it lets you easily handle multiple lines of thought. Amazing for managing all the complexities of a company. The team is unbelievably responsive!"

Eero Knuutila, CEO at LignoSphere

Includes:

✅ Unlimited documents and workspaces

✅ Extremely fluid interface

✅ Full ChatGPT integration with a context-aware chat

✅ Real-time collaborative and private workspaces

✅ Semantic search that understands your meaning Available Q3/2025

✅ ...and more!

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