CommonMark vs GitHub Flavored Markdown (GFM): Differences and Examples
Compare CommonMark with GitHub Flavored Markdown (GFM): tables, task lists, strikethrough, autolinks and GitHub-only features. See what changes and which renderers differ.
GFM Tables: Pipe Syntax, Empty Cells & Line Breaks That Render
Copy-paste GFM table examples: alignment, empty cells, <br> line breaks, escaped pipes, and why merged cells need HTML — plus GitHub, GitLab, Obsidian & Notion.
GitHub Markdown Table Syntax: Copy-Paste Examples & Fixes
Do Markdown tables need three dashes? Tested on GitHub, marked, and remark-gfm: one dash renders fine. What actually breaks tables — and why CommonMark shows none.