ZetaNotes
Offline AI note-taking for Mac with local processing
What is ZetaNotes? Complete Overview
ZetaNotes is a revolutionary AI-powered note-taking application designed exclusively for macOS. It stands out by offering complete offline functionality, running AI models locally on your device without requiring an internet connection. The tool is optimized for Apple Silicon with Metal GPU acceleration, ensuring fast and efficient performance. ZetaNotes serves individuals who prioritize privacy and want to keep their notes securely on their devices, as well as professionals who need reliable AI assistance without cloud dependencies. It solves key pain points like data privacy concerns, dependency on internet connectivity, and the need for responsive AI tools in a native Mac environment. With support for multiple AI models and a range of text processing capabilities, ZetaNotes brings powerful AI functionality directly to your desktop.
ZetaNotes Interface & Screenshots

ZetaNotes Official screenshot of the tool interface
What Can ZetaNotes Do? Key Features
Offline Processing
All AI models run locally on your Mac device, eliminating the need for an internet connection after initial setup. This ensures complete privacy as your data never leaves your computer and guarantees functionality even without network access.
Metal GPU Acceleration
Optimized specifically for Apple Silicon, ZetaNotes leverages Metal GPU support to deliver fast inference speeds. This hardware optimization makes AI processing significantly faster compared to CPU-only implementations.
Multiple AI Models
Support for 8 different AI models across 4 model families (Llama 3.2, Phi-3, Qwen 2.5, Gemma 2) provides flexibility in choosing the right balance between performance and capability for different tasks.
Comprehensive AI Text Tools
Includes autocomplete for smarter writing, text correction for error-free notes, rephrasing for better expression, summarization for condensing content, and translation across 12+ languages.
Semantic Search
AI-powered search functionality that understands the meaning behind your queries, making it easier to find relevant notes even when you don't remember exact keywords.
Markdown Support
Full Markdown syntax support with live preview and export options, allowing for rich text formatting while maintaining simplicity and compatibility.
Conversational AI (Pro)
Pro version includes a chat interface with a context-aware AI assistant that can help brainstorm ideas, answer questions, and provide intelligent suggestions based on your notes.
Custom Tools (Pro)
Create personalized AI tools by defining your own prompts and parameters, tailoring the AI's behavior to your specific workflow and needs.
Best ZetaNotes Use Cases & Applications
Research and Study
Students can use ZetaNotes to compile research, automatically summarize long articles, translate foreign language materials, and quickly find relevant information across all their notes using semantic search.
Professional Writing
Writers and content creators benefit from AI-assisted drafting, where the tool suggests improvements, helps overcome writer's block with autocomplete, and ensures grammatical accuracy.
Secure Note-Taking
Professionals handling sensitive information can rely on ZetaNotes' completely offline operation to ensure confidential data never leaves their device while still enjoying AI-powered features.
Multilingual Work
With support for translation across 12+ languages, users working with multiple languages can quickly convert notes while maintaining context and accuracy.
Personal Knowledge Management
The combination of AI organization and semantic search helps users build and navigate a growing personal knowledge base efficiently.
How to Use ZetaNotes: Step-by-Step Guide
Download and install ZetaNotes from the Mac App Store. The application is available for free with core features, with optional Pro upgrade available.
Upon first launch, the app will download necessary AI models (requires internet connection for initial setup). Choose which models to download based on your needs and storage capacity.
Start creating notes using the intuitive interface. The AI will automatically provide suggestions for autocompletion, corrections, and improvements as you type.
Use the semantic search feature to quickly find notes by concept rather than exact keywords, making your note collection more accessible.
For Pro users, access the chat interface to ask questions about your notes, create custom AI tools, or engage in brainstorming sessions with the AI assistant.
Export your notes in various formats or continue working on them offline, with all AI features remaining fully functional without internet access.
ZetaNotes Pros and Cons: Honest Review
Pros
Considerations
Is ZetaNotes Worth It? FAQ & Reviews
No, ZetaNotes operates entirely offline after initial setup. All your notes and AI processing happen locally on your Mac, ensuring maximum privacy and security.
ZetaNotes is optimized for Apple Silicon Macs with Metal GPU support, but also works on Intel-based Macs. Performance will be best on M-series chips.
Model sizes vary, but you can choose which models to download. The basic Llama 3.2 1B model is relatively small, while larger models offer more capabilities but require more storage.
Yes, the Free version includes core features indefinitely. The Pro upgrade is optional and adds advanced features like chat interface and additional models.
Currently ZetaNotes is only available for macOS. There's no announced timeline for iOS or other platform versions.
The one-time $19.99 payment gives you permanent access to all Pro features, including future updates, with no recurring charges.