Snaptium

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Markdown note-taking App with AI Agent

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Snaptium is a cross-platform AI Markdown note-taking and knowledge management app. It combines a CodeMirror 6 editor, AI-assisted writing, a local vector knowledge index, RAG knowledge-base Q&A, quick capture, and end-to-end encrypted WebDAV/S3 sync.

Notes are stored locally by default, the storage path is configurable, and Markdown import and export are supported. Snaptium runs on Windows, macOS, and Linux and works with both cloud AI services and local Ollama models.

If Snaptium helps you, please give the project a Star so more people can discover it.

For NoteWizard users: NoteWizard has evolved into Snaptium. The legacy release remains available from the NoteWizard v1.2.1 release page.

Contents

• Why Snaptium
• Core features
• Screenshots and demos
• Technology stack
• Supported platforms
• Download
• Local development
• Frequently asked questions

Why Snaptium

Snaptium is more than a Markdown note-taking tool. It is an intelligent writing space built around long-term writing, knowledge accumulation, and local AI workflows.

The project emphasizes:

• Local-first design
• Data sovereignty
• Sustainable long-term storage
• AI assistance without AI lock-in
• Offline usability
• A consistent cross-platform experience

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Core features

Capability	What it provides
✍️ Immersive Markdown editing	A high-performance CodeMirror 6 editor with live preview, synchronized scrolling, task lists, tables, enhanced code blocks, custom shortcuts, and a standard Markdown workflow
📐 Powerful math support	Fast KaTeX rendering for inline and display math, including fractions, roots, superscripts, subscripts, sums, integrals, matrices, and other common LaTeX expressions
💻 Professional code presentation	Syntax highlighting for 24+ languages and automatic recognition of 40+ common aliases, covering JavaScript, TypeScript, Python, Java, Go, Rust, C/C++, SQL, Shell, and more
📊 Diagrams and visualization	Built-in Mermaid rendering for flowcharts, sequence diagrams, class diagrams, state diagrams, Gantt charts, and other technical-document visuals
🤖 AI writing assistant	Three assistance intensities, five writing styles, and seven scenarios for technical documents, product proposals, meeting summaries, content creation, and knowledge organization
🌐 Multi-model AI ecosystem	Free quota through the official AI service plus BYOK support for 12+ providers, including OpenAI, Gemini, DeepSeek, OpenRouter, SiliconFlow, Qwen, Doubao, Kimi, Zhipu AI, Grok, Ollama, and OpenAI-compatible APIs
🧠 Local knowledge base and AI agent	A LangChain-based knowledge system with local note indexing, vector retrieval, semantic search, optional reranking, and Ask / Agent modes for personal knowledge Q&A and tasks
🔍 Hybrid intelligent search	Combines full-text and AI semantic search to locate exact keywords, understand intent, and uncover related knowledge across a long-term note collection
🔐 Local-first data security	Notes stay on your device by default and no account is required; AES-256-GCM encryption, workspace passwords, and recovery keys keep your knowledge under your control
☁️ End-to-end encrypted sync	Cross-device E2EE sync through WebDAV, Amazon S3, Cloudflare R2, MinIO, NAS, or self-hosted private storage
🗂️ Flexible knowledge organization	Notebooks, tags, favorites, and six templates: blank note, daily note, meeting notes, reading notes, project plan, and task list
⚡ Fast capture and productivity	Keep Snaptium in the system tray and use a global shortcut to create a note immediately for ideas, meetings, or temporary thoughts
🕒 Version history and recovery	Review previous note revisions and restore deleted content through version history and the trash
🔄 Open data portability	Import and export Markdown and Snaptium packages, import Evernote ENEX, and export individual notes as PDF
🎨 Deep personalization	System, light, and dark appearances; five accent colors; 14 font choices; and independent font settings for the editor, preview, and application UI
🌍 Cross-platform and international	A consistent desktop experience across Windows, macOS, and Linux with 13 languages and regional settings
🛠️ Diagnostics and maintenance	Export diagnostic reports containing runtime logs, system information, app version, and license status for faster troubleshooting

AI features are disabled by default. Models and API access are configured explicitly by the user.

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Screenshots and demos

Markdown edit mode

Markdown preview

AI smart writing demo

Knowledge base demo

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Technology stack

Frontend

• Vue 3.5.38
• TypeScript 6.0.3
• Vite 8.0.16
• Pinia 3.0.4
• Vue I18n 11.4.5
• CodeMirror 6

Desktop

• Electron 43.2.0
• Electron Builder 26.15.3
• Electron Updater 6.8.9

Markdown ecosystem

• markdown-it
• KaTeX
• highlight.js

AI and data

• LanceDB
• Apache Arrow
• AWS SDK S3
• WebDAV
• LangChain
• Ollama

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Supported platforms

Operating system	Supported version	Architecture	Package formats
Windows	Windows 10 and later	x64	.exe
macOS	macOS 11+	arm64	.dmg
Linux	Mainstream distributions including Ubuntu, Debian, and Fedora	x64	.deb .rpm .AppImage

Download the package that matches your platform.

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Download

Windows

macOS

Apple Silicon

Linux

Debian / Ubuntu

Fedora / RHEL

AppImage

View all releases

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Local development

Install dependencies

npm install

Start the development environment

npm run dev

Build the application

npm run dist

Platform-specific builds:

npm run dist:win
npm run dist:mac
npm run dist:linux

Verify changes

npm run typecheck
npm run lint
npm run test:unit

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Documentation

• Docs: https://snaptium.com/docs

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Frequently asked questions

Is Snaptium a local-first Markdown note-taking app?

Yes. Notes are stored locally by default, the storage path is configurable, and core editing does not require an account.

Can Snaptium use local AI models?

Yes. Snaptium supports local models through Ollama as well as OpenAI, Gemini, DeepSeek, OpenRouter, SiliconFlow, and compatible APIs. AI features remain disabled until configured by the user.

Which note formats can Snaptium import or export?

Snaptium imports and exports Markdown and native .sppx packages, imports Evernote .enex, and exports individual notes as PDF.

Does Snaptium support encrypted sync?

Yes. Snaptium provides end-to-end encrypted sync through WebDAV and S3-compatible object storage, including Cloudflare R2, MinIO, and private NAS storage.

Is Snaptium open source?

Yes. Snaptium is released under the Apache License 2.0.

Roadmap

Future plans include:

• Collaborative editing
• A plugin system
• Mobile support
• More complete offline knowledge-base capabilities

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License

Snaptium is licensed under the Apache License 2.0. See LICENSE for details.

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Acknowledgments

Thanks to Electron, Vue, CodeMirror, markdown-it, KaTeX, LanceDB, Apache Arrow, and everyone who contributes issues, pull requests, and suggestions.

Special thanks to SiliconFlow for supporting Snaptium with AI model services.