Markdown guides

Short, tested guides for opening .md files, saving AI chats, and writing Markdown syntax.

How to open an MD file

Windows, Mac, iPhone, Android — and what to do when Claude or ChatGPT gives you one.

Save a ChatGPT conversation as PDF

Three ways that keep tables and code readable.

Markdown cheat sheet

Common GFM syntax with copy buttons and an on-page table of contents.