Markdown Syntax Cheatsheet & Reference
A searchable Markdown syntax cheatsheet with 60+ entries across basic Markdown, GFM, CommonMark, and extended flavors (alerts, task lists, footnotes, strikethrough, math, mermaid, autolinks, emoji). Each card shows source + live rendered output + a flavor-support matrix (CommonMark / GFM / GitLab / pandoc / Obsidian) and a copy button. Scratch pad to test any snippet. 100% client-side — no network.
About Markdown Syntax Cheatsheet & Reference
A searchable Markdown syntax cheatsheet with 60+ entries across basic Markdown, GFM, CommonMark, and extended flavors (alerts, task lists, footnotes, strikethrough, math, mermaid, autolinks, emoji). Each card shows source + live rendered output + a flavor-support matrix (CommonMark / GFM / GitLab / pandoc / Obsidian) and a copy button. Scratch pad to test any snippet. 100% client-side — no network. Everything runs locally in your browser — your data never leaves your device.
How to use
- Enter your input in the tool above.
- Adjust any options to your preference.
- Use the Copy or Download buttons to save the result.
- Everything happens locally — your data never leaves your browser.
FAQ
Which Markdown flavors does the cheatsheet cover?
Basic Markdown (headings, emphasis, lists, links, images, code), GitHub-Flavored Markdown (GFM: strikethrough, task lists, tables, alerts, autolinks), CommonMark spec essentials, and extended flavors like MultiMarkdown/pandoc/Obsidian (footnotes, math, mermaid, definition lists, emoji shortcodes). Each entry is tagged with a flavor-support matrix so you can see exactly where a feature works.
How many syntax entries are included?
60+ entries across 10 categories: headings, emphasis, lists, links, images, code, tables, blockquotes, rules, and GFM/extended (alerts, task lists, footnotes, strikethrough, math, mermaid, autolinks, emoji, definition lists, raw HTML, escaping, comments, and more).
Can I copy the example source from each card?
Yes. Every card has a Copy button that copies the exact Markdown source to your clipboard. There is also a per-card 'rendered output' panel showing the live-rendered HTML so you can see exactly how each syntax element renders.
Is there a sandbox where I can test my own Markdown?
Yes — a scratch pad at the bottom of the page lets you type any Markdown and see it rendered live in real time. You can also deep-link to any card via its anchor (#h-headings, #gfm-alerts, etc.) and search across all entries with fuzzy matching.
What extra features does this tool have compared to others?
(1) 60+ syntax entries across 10 categories. (2) Searchable with fuzzy match. (3) Per-element live rendered output. (4) Flavor-support matrix (CommonMark/GFM/GitLab/pandoc/Obsidian). (5) Copy button per card. (6) Scratch pad to test any snippet. (7) Deep-link anchors per category. (8) Category filter chips. (9) History of recently viewed cards (localStorage, max 20). (10) Shareable URL with search + filter. (11) Light/dark rendered output. (12) Printable layout. 100% client-side — no tracking, works offline.
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