PDF, DOC, XLS, PPT, Audio, and 20+ formats

Innovation BigData

Your Personal Library AI Platform

Documents, messages, calls — all converging into one intelligent knowledge base powered by AI.

See Features
For Students

Click a book to try AI Chat

PDF, DOC, XLS, PPT, Audio, and 20+ formats

.pdf.doc.docx.ppt.pptx.hwp.xls.xlsx.csv.txt.md.rtf.epub.json.xml.html.png.jpg.webp
Audio Formats.mp3.wav.m4a.ogg.webm

Everything You Need

Powerful AI analysis, universal format support, and a personal knowledge base — all in one platform.

AI-Powered Analysis

Every document is automatically analyzed by advanced AI — summaries, tags, TOC, and key topics in seconds.

Universal Format Support

PDF, Word, Excel, PowerPoint, images, ebooks, and more. Upload anything, we handle the rest.

Personal Big Data

All your documents converge into one searchable, AI-powered knowledge base you can chat with.

AI Chat

Ask questions about your documents and get instant, accurate answers from AI.

Smart Search

Search across all documents with AI-powered semantic understanding.

Lecture Recording

Upload audio recordings and AI transcribes them into structured study notes with TOC, summary, and AI chat.

Office Suite

Built-in todo lists, notes, documents, spreadsheets, presentations, and whiteboards.

Web Page Crawler

Enter a URL and AI automatically crawls, extracts, and analyzes the web page content.

Mind Map

AI automatically generates interactive mind maps from your documents to visualize key concepts and relationships.

Your Digital Bookshelf

Organize documents by category — medical, legal, education, finance, real estate, work, tech, lifestyle — find anything instantly.

Medical
Health Checku...
AI Chat
Medical Re...
AI Chat
Vaccinati...
AI Chat
Legal
Lease Agreeme...
AI Chat
Case File #...
AI Chat
Notarized Wi...
AI Chat
Education
Curriculum Gu...
AI Chat
Thesis Revi...
AI Chat
Finance
Insurance Po...
AI Chat
Tax Filing G...
AI Chat
Loan Repay...
AI Chat
Real Estate
Property Reg...
AI Chat
Appraisal R...
AI Chat
Pre-sale C...
AI Chat
Work
Daycare En...
AI Chat
Blueprint Bld...
AI Chat
Vehicle Ins...
AI Chat
Business Pl...
AI Chat
Tech
Aircraft Main...
AI Chat
Soil Analys...
AI Chat
Lifestyle
Patent App...
AI Chat
Recipe Colle...
AI Chat
Wedding Pla...
AI Chat
Vet Records
AI Chat

Folder-based organization keeps your documents sorted and easy to find.

How It Works

Three simple steps to transform your documents into searchable knowledge.

01

Upload

Drag and drop any supported file format.

02

AI Analysis

AI extracts text, generates summaries, tags, and TOC.

03

Big Data

Search, chat, and discover insights across all your documents.

AI Analysis Power

Advanced AI analyzes every document in seconds, producing rich structured metadata.

Smart Summary

Concise, intelligent summaries capturing the essence of each document.

Table of Contents

Auto-generated hierarchical TOC for easy navigation.

Auto Tagging

Relevant tags automatically assigned for organization.

Key Topics

Core topics and themes extracted for quick understanding.

Language Detection

Automatic language detection with multilingual support.

analysis.json
{
  "summary": "A comprehensive...",
  "tableOfContents": [
    "1. Introduction",
    "2. Methodology",
    "3. Results"
  ], 
  "tags": ["research", "AI"], 
  "keyTopics": ["ML", "NLP"], 
  "language": "English",
  "confidence": 0.97
}

AI Technology Pipeline

From document upload to intelligent insights — a four-stage AI processing pipeline.

Text Extraction

Documents are uploaded and text is extracted using advanced OCR and parsing technology.

AI Analysis

Gemini AI generates summaries, tags, table of contents, and detects languages.

Content Indexing

Text is split into chunks and indexed across multiple fields for fast retrieval.

AI Intelligence

Cross-document search, AI chat, and knowledge discovery across your entire library.

Hybrid RAG Engine

AI That Reads Every Single Page

Even on page 847 of a 1,247-page document, our hybrid search engine finds the exact word in under 1 second. No page is ever skipped.

annual_report_2024.pdf
1 / 1,247
“quarterly dividend ratio”0.8s

Hybrid Search (Vector + Keyword)

Semantic vector similarity and exact keyword matching run in parallel. Even a single word buried deep in a 1,000-page document is found instantly.

3,200-char Semantic Chunks

Every document is split into 3,200-character chunks with 200-char overlap, each embedded as a 768-dimensional vector for precise retrieval.

1M Token Context Window

Powered by Gemini 2.5 Flash with a 1,000,000-token context window. Entire books can be analyzed in a single pass without truncation.

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Pages searchable per document
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Languages supported
0.0s
Average search speed
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Search accuracy
For Students

Built for University Students

Math formulas, chemical equations, physics notation — our AI Vision engine recognizes special academic notation that other tools can't handle.

Other tools
뛨뛿뛻뛿 뛻뛿 깎뛿(garbled)
inobig AI
minimize c^T x subject to Ax ≤ b
Mathematics

∫, Σ, ∂/∂x, lim

Chemistry & Biology

H₂O, NaCl, ΔG

Engineering & Physics

ω, θ, V=IR

Medical & Pharmacy

DNA, RNA, pH

1

Smart Formula Recognition

AI Vision automatically detects garbled formulas in PDF and re-extracts them with correct notation — integrals, matrices, Greek letters, all preserved.

2

Lecture Note AI Chat

Upload your lecture slides and ask questions. AI understands the context of equations and explains step by step.

3

Cross-Document Search

Search across all your textbooks and notes at once. Find that one theorem you remember but can't locate.

4

Study Radio Episodes

Turn your lecture notes into podcast-style audio — two AI hosts discuss the key concepts in an engaging conversation.

Student Plan
$14.99/mo2x Pro usage

Optimized for heavy academic use — 2x the uploads, chats, and searches of Pro, with formula recognition built in.

View Student Pricing

How Students Study with InoBig

From lecture recording to exam prep — a seamless AI-powered learning journey

1

Record & Upload

Upload your lecture recordings (MP3, WAV, M4A). AI automatically transcribes and structures the content into organized study notes with table of contents.

2

Visual Mind Map

AI generates an interactive mind map from lecture content. Visualize key concepts and relationships to build lasting memory through imagery.

3

Listen as Podcast

Lecture content is transformed into an engaging two-host podcast. Learn on-the-go during commute, exercise, or between classes.

4

AI Q&A Chat

Ask questions about anything you didn't understand. AI answers based on your lecture content with precise references and explanations.

5

Organize in Office

Export your study materials to built-in Office suite. Edit, annotate, and create polished notes, presentations, and study sheets.

6

Study Club

Join study rooms with classmates. Share books, discuss in real-time chat, and boost each other's understanding through collaborative learning.

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Files Analyzable
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AI Tokens Processed
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Analysis Accuracy
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AI Analysis Items
Why inobig?

More Than Just AI Q&A

NotebookLM is a great AI note tool. inobig is a complete AI-powered library platform — covering the entire document lifecycle from upload to collaboration.

Feature
inobig
NotebookLM
19+ File Formats
Large-scale OCR
AI Chat with Documents
Hybrid Search
Office Suite
3D Bookshelf View
Audio Flashcards
Mind Map
Book Club / Rooms
Book Sharing
Highlights & Annotations
Focus Timer + Gamification
Folder Organization
10 Languages
Partial: NotebookLM has Audio Overview (podcast-style summary) and notebook sharing, but with limited scope compared to inobig's features.
14+
Exclusive Features
Features you won't find in NotebookLM — from Office Suite to Book Clubs
19+
File Formats
Upload virtually any document format with automatic text extraction
3000+
Pages OCR
Process massive scanned books that other tools can't handle

Stop juggling between multiple tools. One platform for all your documents.

View Pricing

Start Building Your Knowledge Base

Sign in to upload, analyze, and search your documents.