Markdown Tools

Markdown tools for docs, READMEs and notes

Markdown is the lingua franca of developer documentation, README files, wikis, static site generators and note-taking apps. It is easy to write, but you often need to see how it renders, convert it to HTML for a system that does not understand it, or turn existing HTML into Markdown. These Markdown tools cover those tasks, all with GitHub Flavored Markdown support.

Which Markdown tool do you need?

• Write with a preview – the Markdown editor shows the rendered document next to your text and exposes the generated HTML.
• Read a file – the Markdown viewer opens .md files and renders headings, tables, task lists and code blocks.
• Get HTML – Markdown to HTML produces clean HTML fragments for CMSs, emails and websites.
• Go the other way – HTML to Markdown converts web content and CMS exports into editable Markdown.
• Tidy a document – the Markdown formatter normalizes list markers, headings and spacing; the MDX formatter does the same for MDX files with JSX components.
• Build tables and links – the Markdown table generator converts spreadsheet data into pipe tables, and the hyperlink generator writes Markdown links.

Markdown essentials

• # to ###### for headings, **bold**, _italic_, ~~strike~~.
• - item or 1. item for lists, - [ ] task for task lists.
• [text](url) for links and ![alt](url) for images.
• Backticks for inline code and fenced blocks with a language name for syntax highlighting.
• Pipes and a separator row for tables.

Common workflows

Publishing docs to a CMS: write in the editor, check the preview, then copy the HTML output into the CMS source view.

Migrating a blog to a static site generator: convert each post's HTML to Markdown, tidy it with the formatter, and add front matter for your generator.

Adding data to a README: paste spreadsheet rows into the table generator and insert the result into your document.

Why write in Markdown?

Markdown files are plain text, so they work with version control, diff tools and any editor, and they stay readable even without rendering. The same source can become a web page, a PDF or a slide deck, and formatting mistakes are easy to spot and fix. That is why so many documentation systems standardize on it.

Flavors and compatibility

CommonMark defines the core syntax; GitHub Flavored Markdown adds tables, task lists, strikethrough and autolinks. Some platforms add further extensions such as footnotes, math or diagrams, which other renderers display as plain text. When a document must work everywhere, stick to the core and GFM features. All Markdown tools run in your browser.