INDEX · ASCEND · CONVERSE

Paste a YouTube channel URL or add PDFs, Word, spreadsheets, audios, and images. Indexed locally in seconds.

Intelligent Semantic Search: Find the exact answer among diverse data sources.

Natural language chat with streaming. Every response cites the exact source: video, document, timestamp.

What you get with Tusab:

Alive and active memory

Everything you watch, read, or note — indexed, searchable, yours forever.

Your knowledge, your rules

Local, private, serverless. No one has access to what is yours.

AI with the voice of whoever you choose

AI that speaks with the "voice" of the one you chose to listen to.

Real access to technology

Works with free offline models on your computer. No mandatory subscription.

You know where each answer came from

Every excerpt we retrieve comes with a source—video, PDF, or document. No black boxes.

Features

All YouTube knowledge, in text:

Turn entire videos and channels into searchable material. Tusab automatically extracts everything so you can query it anytime.

Smart image reading:

Photos, charts, and screenshots are no problem. Tusab can extract text from them and even understand the visual context of what is being shown.

Answers backed by real proof:

Chat fluidly with the AI. It answers your questions by pointing exactly to which document or video the information came from, avoiding made-up facts ("hallucinations").

Your files, your rules:

Upload PDFs, text documents, spreadsheets, or simply paste information directly into the tool. Tusab understands and organizes almost everything.

Secure voice transcription:

Turn audio files and recordings into text directly on your machine. The processing is fast, ensures your privacy, and works entirely offline.

In your language, safely:

Works in English, Portuguese, and Spanish. For extra protection, you can optionally back up your knowledge bases directly to your Google Drive.

Import WhatsApp chats or meeting transcripts (Zoom, Teams) to quickly find that agreement, link, or important idea from the past.

Histories always at hand:

Work on autopilot:

Want to download content from multiple channels or dozens of files? Put everything in the queue and let Tusab process it on its own while you focus on other tasks.

The AI of your choice:

Run everything locally for free, or connect the most powerful AIs on the market (like ChatGPT and Gemini) if you prefer. You are in control.

A custom-tailored assistant:

Do you want direct, highly technical answers, or a more teacher-like approach? Choose the conversation tone or create a unique personality to help you out.

Total focus on what matters:

Use "@" to tell the AI exactly which documents it should consult to answer a question, avoiding crossed wires between different projects.

❇️ 100% Local and Free: Using the default engine (Ollama), Tusab runs entirely on your computer with complete privacy. No internet required, no accounts to create, and no subscriptions.

Your data doesn't leave your machine.

🔏Local-first

Everything processed on your PC.

🎲 No central server

Data on our systems only.

🛜 Works offline

Extraction and chat without internet.

LGPD Compliance (Law 13.709/2018)

Who TUSAB is for

🎓 Students and researchers

Transform courses, classes, lectures, and articles into your personal study base. Ask, review, and connect content — without relying on memory or notebooks.

🎙️ Content creators

Index your own channel and everything you have already produced. Consult old ideas, find specific excerpts, and rebuild on top of what already exists.

💼 Professionals and consultants

Transform recorded meetings, internal documents, and confidential client materials into a searchable base. Less time searching, more time delivering.

🏢 Teams, companies, and institutions

Private and local knowledge base — without exposing documents to external APIs. Ideal for hospitals that cross-reference sensitive data, legal teams with confidential contracts, or companies with internal collections.

Ready to have your private specialist?

Free. Local. Yours.

Windows 10/11 • Requires ~500 MB • Optional Ollama for 100% local mode

Contacts:

Augusto Alves Brasil
tusab@tusab.solution

© 2026 CriAugu — CNPJ 65.131.075/0001-57
Devoloped by Augusto Brasil