Your AI Second Brain

Your second brain,
powered by AI.

Save chats, text, and insights from ChatGPT, Gemini, and Claude with a single tap. Organize automatically with Smart Folders, chat with your notes, and rediscover ideas effortlessly.

Download on Google Play

Capture Workflow

How it works

KnotHub takes the friction out of learning. Import insights instantly from ChatGPT, Gemini, Claude, or audio recordings.

Copy or Share

Select any text or share an active conversation link directly from ChatGPT, Gemini, Claude, or any other web page.

Tap «Share»

Choose KnotHub from the mobile share menu. You don't need to manually type or copy-paste text between apps.

AI Analysis & Auto-Format

KnotHub AI instantly analyzes the content, formats it clean, suggests tags, and generates an optimized title in seconds.

Saved in Timeline

Your structured note appears in your timeline, ready to be searched, grouped in Smart Folders, or queried using AI chat.

Key Capabilities

Everything you need
to organize your mind.

Designed for productivity. Simple interfaces hiding intelligent, state-of-the-art AI parsing under the hood.

Instant One-Tap Archiving

Copy any text or share an active conversation link directly from ChatGPT, Gemini, or Claude. KnotHub automatically imports and structures it.

Smart Self-Organizing Folders

Folders that manage themselves. Group notes automatically based on their tags, semantic topics, and natural language meaning.

KnotHub AI Assistant

An integrated editor assistant that refines grammar, translates languages, summarizes long chats, and answers complex questions about your entries.

Contextual Semantic Retrieval

Locate any entry from your database instantly. Natural language search understands the meaning behind your query, not just exact keywords.

Interactive Connections Map

A semantic map that analyzes your writing history to visually connect related notes, helping you discover hidden patterns in your knowledge base.

Rediscover Forgotten Thoughts

Our algorithm resurfaces buried ideas and notes from months ago, ensuring your past discoveries stay active and useful in your daily workflow.

App Showcase

A premium, focused UI

Take a tour of the application screens designed for a calm and high-efficiency workflow.

Trial & Guest Options

Zero-friction entry

Explore KnotHub instantly with Guest Mode. Upgrade to a free account or unlock PRO to enjoy advanced features with a 30-day trial.

Interface style

Matte dark SaaS UI

Sync State

Instant Cloud Sync

No Credit Card Needed

Start with a 30-day free trial of PRO, or stick to our standard free plan. Cancel anytime in one tap.

Local-First Storage

Your notes are saved on your phone. Even without internet, search and view everything instantly.

Seamless Exports

Your second brain belongs to you. Export notes as a structured JSON backup or clean PDF documents.

Support

Frequently Asked Questions

Now Available

Start building your
AI memory.

Join thousands of curious minds capturing, organizing, and conversing with their AI knowledge. Available now for Android.