| ✍️ 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 |
