Free Markdown Previewer & Formatter

🟢 Runs Locally — verified: your files are processed in this browser. No uploads.

Type Markdown and watch a live rendered preview while the formatter normalizes your source.

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Runs entirely in your browser — paste text and watch the results update instantly. Nothing is uploaded.

100% Client-Side — Your text stays in your browser. Nothing is uploaded.

How to use this tool

  1. 1

    Type or paste Markdown

    Headings, lists, tables, code — the preview updates live.

  2. 2

    Watch the preview

    A rendered preview appears above the Result panel.

  3. 3

    Copy the formatted source

    The Result panel holds your normalized Markdown for reuse.

Key features

ViewShows
Live previewRendered HTML of your Markdown
Formatted sourceLF endings, no trailing spaces
Blank-line controlMax one blank line between blocks
Safe renderingAll content escaped

Privacy: your text never leaves your browser

Every Toolflect Text Tool is 100% client-side. The moment you type or paste text, it is analyzed by JavaScript running inside this browser tab. Your text is never sent to our servers, never stored in a database, and never shared with any third party or AI service. Visit counting (see the note at the foot of this page) is separate from your text and never receives it.

  • No uploads, no accounts, no sign-up
  • Your text is processed locally in your browser and never stored.
  • Works offline once the page has loaded
  • Close the tab and your text is gone from memory

You can even verify it yourself: open your browser's developer tools, switch to the Network tab, and type into the tool — no request ever carries your text. You will also see the Google Analytics request that counts the visit; it carries a page view and never anything you typed, and no cookie or identifier is stored until you accept analytics.

Frequently asked questions

Is the preview safe?
Yes — every fragment is HTML-escaped before rendering, so pasted HTML or scripts cannot execute.
What does the formatter change?
It normalizes line endings to LF, strips trailing spaces and collapses runs of blank lines — nothing semantic.
Which Markdown is supported?
The same GFM subset as the Markdown to HTML converter: headings, lists, tables, fenced code, links and more.
Private?
Fully — preview and formatting run locally in your browser.

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Your text stays in your browser and is not uploaded. We use Google Analytics to count visits; until you choose it runs without cookies and stores nothing on your device. · Privacy Policy