Case Study — Portfolio Bonsai MD
The Markdown editor that launches before you finish clicking.
Metafic designed and built Bonsai MD, an ultra-lightweight native Markdown viewer and editor for macOS that opens your files instantly. No Electron. No bloat. No subscriptions. Just a blazing-fast native app that does one thing exceptionally well — with beautiful rendering, every theme and font you'd want, export everywhere, and total offline privacy.
- Client
- Bonsai MD
- Category
- Native macOS Markdown Editor
- Scope
- Product design + native engineering
- Platform
- macOS · Mac App Store
Most Markdown apps are a browser in a trench coat.
The Markdown tools people reach for are usually Electron apps that take a second to wake up, phone home with analytics, and ask for a subscription to unlock the basics. For something as simple as reading and writing plain text, that's a lot of weight.
Bonsai MD goes the other way: a genuinely native macOS app that launches instantly, renders beautifully, exports anywhere and never touches the network. Metafic designed and engineered it to do one thing exceptionally well — for developers, writers, students and anyone who lives in Markdown.
Cold launch — files open before you blink
Languages syntax-highlighted in preview
Export to PDF, DOCX, HTML, JSON & more
No telemetry, no accounts, no cloud
One thing, done exceptionally well.
Lightning fast, natively
Sub-second cold launch, a pre-warmed rendering engine and progressive rendering that handles massive Markdown files without a stutter. No Electron, no bloat — just a native Mac app that opens before you finish clicking.
Full Markdown editing
A rich toolbar — bold, italic, strikethrough, code, quotes, lists, tables — with live GitHub-flavored preview, a side-by-side editor, and a table-of-contents sidebar for navigating long documents.
Beautiful preview rendering
Syntax-highlighted code in 190+ languages, LaTeX math via KaTeX, Mermaid diagrams for flowcharts and sequences, and full GitHub-flavored tables, task lists and blockquotes.
Themes & fonts for everyone
Switch between System Default, Newsprint, Dracula and Neon themes, eight-plus fonts including Inter, Playfair Display and JetBrains Mono, an OpenDyslexic option, adjustable sizes and full dark mode.
Export everywhere
One document, every format — export to PDF, HTML, Plain Text, DOCX, YAML, XML and JSON, or share directly from the menu bar. Bonsai MD fits whatever the next step in your workflow is.
100% offline & private
No internet connection required — ever. No telemetry, no analytics, no accounts. Fully sandboxed for security, your documents never leave your Mac.
Native to the pixel, on every theme.
AI-accelerated engineering, subscription-grade design.
Engineered with Metafic.ai Pods
Bonsai MD was built end-to-end by Metafic.ai delivery Pods — AI-accelerated squads pairing senior engineers with an agentic build pipeline. A truly native macOS app with a pre-warmed rendering engine, KaTeX, Mermaid and 190+ language highlighting, fully sandboxed and shipped to the Mac App Store in a fraction of the usual time.
Explore Metafic.aiDesigned by Metafic Design Unlimited
Our subscription design team gave Bonsai MD a Liquid Glass design language that feels right at home on macOS — a calm reading surface, a focused editor, and thoughtful touches like Arabic and RTL support, a dyslexic-friendly font option and a full set of themes and sizes.
See Design UnlimitedCreating a full range of apps and software across all the platforms.
We are global at our core, understanding users and markets across the globe.
Software-enabled platforms to completely change the way of UI/UX iterations.
Aren't we just lovely?
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