Vellum · 素笺

A warm, parchment-toned Markdown viewer for Windows.

Download

The easiest way to get started is to download the latest installer from GitHub Releases.

Two Windows installer formats are provided:

• MSI - 素笺_0.1.0_x64_en-US.msi
  Recommended for system-wide or managed installs.
• NSIS Setup - 素笺_0.1.0_x64-setup.exe
  Recommended for a lightweight per-user install.

Both installers automatically register .md and .markdown file associations, so you can open Markdown files directly from File Explorer.

Platform note: Vellum · 素笺 is currently built and tested for Windows 10/11 x64 only.

Features

• Read-first experience. No editing chrome, no split panes — just the document.
• Kami-inspired design. Warm parchment background (#f5f4ed), serif typography, and a single navy accent.
• GitHub Flavored Markdown. Tables, task lists, blockquotes, fenced code blocks, and inline formatting.
• Syntax highlighting. Code blocks are rendered with react-syntax-highlighter / One Light.
• Local images & GIFs. Relative images next to your .md file resolve automatically and stay animated.
• Safe raw HTML. Common layout tags are allowed and sanitized.
• External links. Markdown hyperlinks open in your default browser.
• Custom overlay scrollbar. A 6 px scrollbar that appears while scrolling or when the cursor is near the right edge.
• Frameless native window. Clean top bar with square window controls and an icon-only Open button.
• Document outline. A collapsible left sidebar lists h1–h3 headings, highlights the current section as you scroll, and lets you jump to any heading with one click.

Usage

1. Run the installer and finish setup.
2. Double-click any .md or .markdown file in File Explorer.
3. To open another file, click the folder icon in the top-right corner.

System Requirements

• Windows 10 version 1809+ or Windows 11
• 64-bit (x64) processor
• WebView2 runtime (pre-installed on most modern Windows systems)

Tech Stack

• Tauri 2 — Rust-powered desktop framework
• React 19 — UI layer
• react-markdown — Markdown parsing
• react-syntax-highlighter — Code block highlighting
• TypeScript — Type safety across the frontend
• Cargo / Rust — Native backend and asset resolution

Credits

The visual language — warm paper tones, serif body type, and restrained navy accents — is directly inspired by Kami, Tw93's beautiful document system. Vellum · 素笺 brings that same reading feeling to Markdown files on Windows.

License

MIT

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Built for focused reading.