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What is Obsidian?

Obsidian acts as a powerful knowledge management solution that utilizes a collection of plain text Markdown files stored on your local device. Just as our thoughts transition from one idea to another, your second brain should reflect this organic, non-linear flow. The ability to create and explore "connections" between notes in Obsidian is both effortless and user-friendly. Take the time to nurture your notes, and at the close of each day, reflect on the complex web of insights you've woven together. Customization is essential in the note-taking process, and if you've tried different applications yet always felt something was lacking, Obsidian presents a revitalizing option. With its highly adaptable design, it offers 22 core plugins and an impressive 149 community-developed plugins, making it easy to personalize your setup and get started in mere minutes. Moreover, when Obsidian reaches its version 1.0 milestone, users will have the opportunity to incorporate third-party plugins or even develop their own, unleashing a world of possibilities. In a time when cloud services can be unpredictable and prone to abrupt changes, the last thing you want is to be dependent on proprietary formats that risk data lock-in. Obsidian ensures that your information is safely housed within a local folder, granting you both peace of mind and absolute control over your data. This commitment to local storage guarantees that your knowledge will always be accessible and protected, regardless of what challenges the future may present. By embracing this tool, you're not just organizing information; you're empowering yourself to engage deeply with your own thoughts and ideas.

What is Gemini Notebook?

Gemini Notebook (previously NotebookLM) is an AI-powered notebook designed to help users understand, study, and work with information from their own sources. The platform lets users upload materials, ask questions, and get responses grounded in the content they provide. This makes Gemini Notebook useful for learning, research, analysis, studying, writing, and turning large collections of information into clearer insights. Users can use their notes and documents more efficiently by asking about specific topics, generating summaries, and exploring relationships across sources. Gemini Notebook can transform source material into Audio Overviews, Mind Maps, Reports, Flashcards, Quizzes, Video Overviews, Data Tables, Infographics, and Slide Decks. Audio Overviews provide spoken summaries of uploaded sources, giving users a way to absorb information through listening. Mind Maps and Data Tables help organize complex information visually and structurally. Flashcards and Quizzes make the platform useful for studying, review, and exam preparation. Public notebooks give users a starting point for exploring curated collections such as Shakespeare’s complete works, corporate earnings reports, and other educational topics. Gemini Notebook also emphasizes privacy, stating that organizational and school data stays private and that individual data is not used for training unless feedback is shared. By combining source-grounded AI, multimedia learning formats, structured outputs, and privacy-focused design, Gemini Notebook helps users turn their own information into a more useful learning and productivity workspace.

Media

Media

Integrations Supported

Amurex
Automna
Kanwas
Kuku
MarkSnip
Markdown
Mermaid
Sofos
Superlist
TypeScript
VoiceInk
memU Bot
scribe
specgit

Integrations Supported

Gemini 3 Pro Image
Gemini 3.1 Flash-Lite
Gemini 3.1 Pro
Kortex
Nano Banana

API Availability

Has API

API Availability

Pricing Information

$25 one-time payment
Free Version

Pricing Information

Free
$20/month for NotebookLM Plus
Free Version
Free Trial Offered?

Supported Platforms

Android
iPhone
iPad
Windows
Mac
Linux

Supported Platforms

SaaS
Android
iPhone
iPad

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

Obsidian

Company Website

obsidian.md/

Company Facts

Organization Name

Google

Date Founded

1998

Company Location

United States

Company Website

notebooklm.google/

Categories and Features

AI Workspaces

Not specified

Markdown Editors

Not specified

Note-Taking

Not specified

Text Editors

Not specified

Categories and Features

AI Productivity

Not specified

AI Research Tools

Not specified

AI Tools

Not specified

AI Workspaces

Not specified

Note-Taking

Not specified

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