Productive ToolboxMarkdown Previewer
Write Markdown and see it rendered live with GitHub Flavored Markdown: tables, task lists, code blocks and more, then export clean HTML.
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Markdown in a Nutshell
Markdown lets you format text with a few plain characters that stay readable even before they are rendered. It is the standard for README files on GitHub and GitLab, documentation sites, and notes apps such as Obsidian and Notion, and it is understood by Reddit, Discord and Stack Overflow.
There are several dialects. CommonMark is the precise, standardised core; GitHub Flavored Markdown (GFM) adds tables, task lists, strikethrough and automatic links. This previewer uses a CommonMark-compliant parser with GFM, and removes scripts from any HTML you include.
Markdown Cheat Sheet
| Element | Markdown | Notes |
|---|---|---|
| Heading 1–6 | # Title ## Section ### Subsection | One # per level, followed by a space |
| Bold | **bold** or __bold__ | – |
| Italic | *italic* or _italic_ | Underscores inside words are ignored: snake_case |
| Strikethrough | ~~deleted~~ | GFM |
| Link | [text](https://example.com) | Bare URLs become links in GFM |
| Image |  | Alt text describes the image |
| Bulleted list | - item - item - nested item | Indent two spaces to nest; * and + also work |
| Numbered list | 1. first 2. second | The first number sets the start |
| Task list | - [ ] to do - [x] done | GFM |
| Blockquote | > quoted text | Add > to each line, or just the first |
| Inline code | `code` | – |
| Code block | ```js console.log(1) ``` | The language name enables highlighting on most sites |
| Table | | A | B | | --- | ---: | | 1 | 2 | | Colons set alignment (GFM) |
| Horizontal rule | --- | On its own line, with a blank line above |
| Line break | line one\ line two | Backslash or two trailing spaces |
| Escape a symbol | \*not italic\* | A backslash shows the character literally |
How to Use the Markdown Previewer
- 1Write or paste Markdown: Type in the editor, paste a README or notes, or load a .md file; a sample document shows the main features.
- 2Check the preview: The right-hand pane renders the Markdown as you type, including tables, task lists, strikethrough, code blocks and links.
- 3Switch the layout: Use Preview Only to read the document full width, and switch back to edit.
- 4Export: Copy the generated HTML, download it as a styled HTML page, or save your text as a .md file.
Frequently Asked Questions
What is Markdown?
A plain-text formatting syntax created by John Gruber in 2004. You mark up text with simple symbols, such as # for a heading, **bold** and - for a list item, and a converter turns it into HTML. It is used for README files, documentation, notes apps, chat and forums.
What is GitHub Flavored Markdown?
GFM is the dialect GitHub uses, built on the CommonMark standard. It adds tables, task lists (- [ ] and - [x]), strikethrough (~~text~~) and automatic links for bare URLs. This previewer renders GFM, so README files look much as they will on GitHub.
How do I make a table in Markdown?
Separate columns with | and put a line of dashes under the header row: | Name | Price | on the first line, | --- | ---: | on the second, then one row per line. A colon on the right of the dashes right-aligns the column, on both sides centres it.
How do I add a line break without a new paragraph?
End the line with two spaces or a backslash (\) before pressing Enter. A single Enter joins the lines into one paragraph, and an empty line starts a new paragraph.
Can I use HTML inside Markdown?
Yes, most Markdown renderers accept inline HTML such as <kbd>, <sup> or <details>. For safety this previewer removes scripts, event handlers and javascript: links from the output.
Is my document stored or uploaded?
No. We do not collect or store what you enter.
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