A Markdown editor lets you write structured content using plain text syntax and instantly see the rendered HTML output side-by-side. Markdown is widely used for README files, documentation, blog posts, and notes — and this editor supports GitHub Flavored Markdown with code syntax highlighting.
How to Use the Markdown Editor
The Markdown editor provides a split-pane view where your raw Markdown text is on the left and the rendered HTML preview updates in real time on the right. It uses marked.js for rendering and highlight.js for code block syntax highlighting, supporting GitHub Flavored Markdown.
Writing with the Toolbar
Click any toolbar button to insert Markdown syntax at your cursor position. B wraps selected text in **bold**, I in *italic*. The Link button inserts [text](url). Code block inserts a fenced code block where you can specify the language for syntax highlighting.
Code Syntax Highlighting
Write a fenced code block with a language specifier like ```javascript to get full syntax highlighting in the preview. Supported languages include JavaScript, TypeScript, Python, Bash, CSS, HTML, SQL, Go, Rust, and many more via highlight.js.
Exporting Your Content
Click Download .md to save your Markdown as a file. Click Copy HTML to copy the rendered HTML output — useful when pasting into a CMS, email template, or documentation system that accepts HTML. Your content is auto-saved in localStorage so you never lose your work between sessions.
FAQ
Is this Markdown editor free?
Yes, the Markdown editor is completely free with no account required. Write, preview, and export Markdown without any limits.
Is my text saved?
Your Markdown content is stored in your browser's localStorage, so it persists when you reload the page. Nothing is sent to any server — all processing happens locally in your browser.
What Markdown features are supported?
The editor supports GitHub Flavored Markdown (GFM) via the marked.js library, including headings, bold, italic, links, images, code blocks with syntax highlighting, tables, task lists, blockquotes, and horizontal rules.
How does syntax highlighting work in code blocks?
Code blocks fenced with backticks are automatically syntax-highlighted using highlight.js. Specify the language after the opening fence (e.g., ```javascript or ```python) for language-specific coloring.
How do I download my Markdown?
Click the Download button in the toolbar to save your content as a .md file. You can also click 'Copy HTML' to copy the rendered HTML output for use in another application.
What is the toolbar for?
The toolbar inserts Markdown syntax at your cursor position. Buttons for bold, italic, heading, link, image, inline code, code block, unordered list, ordered list, blockquote, horizontal rule, and table are available. The toolbar eliminates the need to memorize Markdown syntax.
Does the editor support tables?
Yes. Click the Table button to insert a sample Markdown table with header row and separator. Edit the column names and cell values as needed — the preview updates in real-time as you type.