The MDHero journal

Markdown,
done right.

Guides, workflows, and deep dives for people who live in plain text — from first-time writers to keyboard-wielding devs.

Latest posts

tutorial · vim

Vim Keybindings for Markdown Readers: A Keyboard Shortcuts Guide

Vim keybindings and markdown reader keyboard shortcuts that turn any markdown viewer into a keyboard-driven reader. Complete reference for j/k/gg/G in MDHero.

May 9, 20265 min read New
tutorial · katex

Render LaTeX in Markdown: KaTeX Math Equations Guide (2026)

How to render LaTeX in markdown with KaTeX — every inline and block syntax for markdown math equations, plus which markdown viewer renders math best.

May 6, 20265 min read New
tutorial · beginner

What is a .md File? How to Open Markdown Files on Mac & Windows (2026)

A .md file is a Markdown document. Learn what the .md file extension means and the easiest ways to open Markdown files on Mac and Windows in 2026.

May 3, 20265 min read
ai workflow · claude

How to Read Claude Code Plans: Render Claude Code Markdown the Right Way

Claude Code plans live in ~/.claude/plans as raw markdown. Here's how to view Claude Code output and render Claude response files with a real markdown viewer.

Apr 30, 20265 min read
comparison · readme

Quick Look vs MDHero: The Best Markdown Viewer for Mac in 2026

Quicklook markdown shows raw text. MDHero renders it. The best markdown viewer Mac comparison — and how to preview markdown files in Finder properly in 2026.

Apr 26, 20265 min read
comparison · 7 apps · 2026

Best Free Markdown Viewers in 2026 — Honest Comparison

The best free markdown viewers for Mac and Windows in 2026, compared on price, size, and features. Includes Typora alternatives and lightweight options.

Apr 25, 20265 min read
deep dive · ~8MB

Building a Lightweight Markdown Viewer in 8MB: Tauri vs Electron

How we built MDHero, a native, lightweight markdown viewer under 8MB using Tauri and Rust instead of Electron — without sacrificing polish or speed.

Apr 25, 20265 min read
tutorial · windows

How to Open .md Files on Windows Without the Clutter

How to open .md files on Windows 10 and 11 — every markdown viewer Windows option compared, from Notepad fixes to a native .md file viewer that just works.

Apr 25, 20265 min read
ai workflow · paste

Copy ChatGPT Formatting Cleanly: Fix Paste \n with an LLM Markdown Viewer

Why ChatGPT paste formatting breaks in Google Docs, Word, and Notion — and how to fix it. Copy ChatGPT formatting cleanly with an LLM markdown viewer.

Apr 25, 20265 min read
guide · macOS · 2026 edition
Editor's pick

The complete guide to viewing Markdown files on Mac in 2026

How to view markdown files Mac users actually trust in 2026 — Quick Look, VS Code, and native markdown viewers compared. The right way to open .md files on macOS.

Apr 22, 202612 min read

Enjoying the writing? Try the app it's about.

Free, native, ~8MB. Takes fifteen seconds to install — no account needed.