Markdown Previewer

    Write and preview Markdown and MDX online with live rendering. Includes real-time word count, reading time estimate, and document import/export features.

    0 min read0 words0 chars

    Preview

    Preview will appear here as you type...

    How to Use

    Follow these simple steps to get the best results.

    1Start typing or paste your Markdown. The preview updates live with every keystroke, no submit button needed.
    2Check the badge. It automatically detects whether your content is standard Markdown or MDX and updates the label in real time.
    3Monitor your stats. Word count, character count and reading time update live in the toolbar as you write.
    4Import a file. Click the upload button to load any .md or .mdx file from your device directly into the editor.
    5Export your work. Click the download button to save your content as a .md or .mdx file based on the detected type.
    6Copy and go. Use the copy button to grab the raw Markdown text and paste it anywhere you need.
    7Reset to start fresh. Clear the editor and all stats with a single click.

    Frequently Asked Questions

    It supports both standard Markdown (.md) and MDX (.mdx) files. The tool automatically detects which format you are using based on your content. If it spots JSX-like component tags or import statements, it switches the badge to MDX.

    No. Since executing arbitrary JSX in the browser would be a security risk, component tags are displayed as plain text in the preview. A subtle banner lets you know when MDX content is detected. The focus of this tool is previewing the markdown content itself, not running live React components.

    We use the industry standard rate of 200 words per minute, which is the average reading speed for an adult. The estimate updates in real time as you type so you always know how long your content will take to read.

    Yes. Click the Import button and select any .md or .mdx file from your device. The file contents will be loaded into the editor instantly and all stats will update automatically.

    The export downloads your content as a file named tooltri-markdown-export with the extension matching the detected file type. If your content is plain Markdown, you get a .md file. If it contains MDX syntax, you get a .mdx file.

    Completely. Everything happens right in your browser. We never send your text to a server, we don't store it and there's no logging. Once you close the tab, your content is gone. It's safe for private documentation, internal notes and sensitive drafts.

    How It Works

    Preview Your Markdown Like a Pro

    Writing Markdown is easy. Seeing how it actually looks before you ship it? That is where most tools fall short. Our Markdown Previewer is a free, browser-based editor that renders your content in real time as you type. Whether you are drafting a README, writing documentation or preparing a blog post, you get an instant, accurate preview without ever leaving the page.

    Why You Need a Live Preview

    Markdown is a plain-text formatting language designed to be readable and writable by humans. But there is always a gap between what you write and what the reader sees. A heading that looks right in your text editor might actually be broken because of a missing space. A list that seems fine could be rendering as a paragraph because of indentation issues.

    A live preview eliminates guesswork. Every character you type is immediately rendered, so you catch formatting errors the moment they happen. No more committing a README and then realizing half your links are broken.

    Full Markdown Support

    We render all the standard Markdown elements you use every day:

    ElementSyntaxWhat You See
    Headings# to ######Six levels of visual hierarchy
    Bold and Italicbold and italicFormatted emphasis
    LinkstextClickable links that open in a new tab
    CodeBackticks and fenced blocksSyntax-highlighted code
    Blockquotes> textStyled callout blocks
    Lists- or 1.Ordered and unordered, including nested
    TablesPipe syntaxClean, aligned tables
    Task Lists- [x] itemVisual checkboxes
    Horizontal Rules---Clean section dividers

    Everything is styled using our design system, so the preview looks like a polished, published document rather than generic browser output.

    MDX Detection

    MDX extends Markdown with JSX, allowing you to embed React components directly inside your content. Our tool automatically detects when your content contains MDX syntax like component tags or import statements and switches the file type badge accordingly.

    Since executing arbitrary JSX in a browser preview would be impractical and unsafe, component tags are displayed as text. A subtle information banner lets you know this is happening so there are no surprises. The standard Markdown elements in your MDX file still render perfectly.

    Built-In Writing Stats

    The toolbar shows three live statistics that update on every keystroke:

    Reading Time uses the standard rate of 200 words per minute to estimate how long your content will take to read. This is invaluable for bloggers and content creators who need to hit a target length.

    Word Count tracks the total number of words in your document. Whether you are writing to a specific limit or just keeping an eye on length, this number is always visible.

    Character Count shows the total characters including spaces. This is useful for platform limits like meta descriptions, social media posts or any context where character precision matters.

    Import and Export

    You can import any existing .md or .mdx file from your device with a single click. The file contents load directly into the editor and all stats update immediately. When you are done editing, the Export button downloads your work as a properly named file with the correct extension based on the detected content type.

    Your Content Stays Private

    Everything happens right in your browser. We never send your text to a server, we do not store it and there is no logging. Once you close the tab, your content is gone. This makes it completely safe for private documentation, internal notes and sensitive drafts.