Markdown to Substack Converter
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What is Markdown to Substack Converter?
This tool converts Markdown documents into rich text that can be pasted directly into Substack's newsletter editor. Since Substack's editor does not recognize Markdown natively, pasting raw Markdown displays # symbols, ** markers, and other syntax as plain text. This converter transforms Markdown into rich text (HTML) and copies it to your clipboard in a format Substack's editor understands. Unlike Medium, Substack supports tables, strikethrough, and nested lists, so more formatting is preserved.
How to Use
- Paste your Markdown text into the editor or write directly. You can also upload a .md file.
- If unsupported elements (math equations, external images, etc.) are detected, a warning will appear above the editor.
- Click 'Copy for Substack', then open a new post in the Substack editor and paste with Ctrl+V. Your content will appear with formatting preserved.
What Happens When You Paste Raw Markdown Into Substack
Substack's editor is rich-text based and does not automatically recognize Markdown syntax. Compare raw pasting versus using this converter in the table below.
Key insight: Substack supports more formatting than Medium (tables, strikethrough, nested lists, etc.). However, it does not recognize Markdown syntax itself, so you need this converter to transform it into rich text before pasting.
| Element | Raw Paste Result | Converter Handling |
|---|---|---|
| Heading (# Text) | # symbol appears as text | Converted to H1–H6 heading |
| Bold (**text**) | ** symbols appear as text | Converted to bold text |
| Code block (```lang) | Unindented plain text block | Converted to syntax-highlighted code block |
| Table (| col | col |) | Pipe symbols appear as text | Converted to HTML table (fully supported) |
| Strikethrough (~~text~~) | ~~ symbols appear as text | Converted to strikethrough formatting |
| Nested lists | Indentation is lost | Nested list structure preserved |
| Checkbox (- [x]) | [ ] symbol appears as text | Converted to ✅/⬜ emoji list |
| Front Matter (---) | Full YAML code appears as text | Automatically removed |
Based on direct testing in the Substack editor, April 2026
Who Is This For?
- Substack Newsletter Writers: Those who draft in Markdown using Obsidian or VS Code and publish on Substack
- Technical Bloggers: Developers publishing technical articles with code blocks and tables on Substack
- Cross-posters: Those repurposing GitHub READMEs or technical docs as Substack newsletters
- Static Site Authors: Writers publishing on Ghost, Jekyll, or Hugo who also post on Substack
- Note App Users: Those moving Markdown notes from Notion or Bear to Substack