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AspenMark
A zero-dependency Markdown viewer/editor with split live preview, a custom UI, and three themes.
Version 1.0.0 · Windows 10/11 · 64-bit · Free
Features
Only what you need — lightweight
⟷
Split live preview
Edit on the left, preview on the right. Updates instantly (150ms), smooth with Korean IME.
🎨
Dark · Light · BTS themes
Celestial toggle (🌙/☀/⭐) cycling through dark, light and the purple BTS theme.
🧲
Magnetic window snap
Snaps softly to screen edges, with smooth multi-monitor moves.
📐
Three view modes
Split · editor-only · preview-only, with automatic per-mode window sizing.
📋
GFM tables · code fences
Tables (with alignment), code blocks, quotes and lists — rendered by a custom engine.
🔒
Fully offline · no collection
Everything runs locally. No server calls, tracking or collection at all.
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Get it now
Choose the installer (recommended) or the no-install portable build.
Requirements: Windows 10/11 (64-bit) · runs even without .NET installed (runtime bundled)
Changelog
Changelog
| Version | Notes |
|---|---|
| 1.0.0 2026-06 |
First public release. Split live preview, custom Markdown engine (headings, emphasis, lists, quotes, code fences, GFM tables, hr), dark/light/BTS themes, magnetic snap, settings persistence, installer & portable builds. |