How to Use Marked Share: Turn Pasted Markdown Into a Clean, Shareable Result
Reviewed by the FreeOnline.fyi team · Updated 2026-09-14
The hand-off problem Marked Share was built for
We kept running into the same small, annoying moment: someone drafts release notes, a spec, or meeting notes in Markdown, pastes it into a chat window, and the recipient is confronted with a wall of asterisks, pipes, and backticks. Markdown is great for writing and terrible for casual reading. Marked Share exists to close that gap in under a minute.
The tool takes pasted Markdown and gives you back a rendered, sanitized preview plus four ways to hand it off: a self-contained share link, copy-ready rich text, an HTML snippet, or a downloadable .html file. There is no account step and nothing is uploaded — the conversion happens in your browser as you work.
The workspace is deliberately plain: editor on the left, live preview on the right, and a sticky export bar pinned across the bottom so the copy button stays within reach while you're still typing and editing. The preview refreshes roughly 150ms after you stop typing, which is fast enough to feel live but slow enough that it isn't thrashing on every keystroke.
Step one: paste your Markdown and set the title
Drop your source into the editor. The default sample document deliberately shows a heading, a list, code, a table, and a link, so you can immediately see how each element renders before committing your own text. If your document uses tables, this is a good moment to confirm they survive the trip.
Set the Document title field next — it is trimmed and capped at 120 characters, and it feeds both the generated page title and the header shown in the shared view. If you leave it alone, everything goes out labeled "Untitled note," which is fine for a scratch note and a poor look for anything client-facing.
Keep an eye on the character counter. The hard ceiling is 20,000 characters, and there is a warning threshold at 8,000. Passing 8,000 doesn't break anything, but it changes what you can export: link export is disabled at that point, while HTML download still works normally.
Step two: choose the export format that matches the destination
There are four export formats, and the right one depends entirely on where the text is going. Rich text is for email, chat apps, and word processors — paste it and you keep heading hierarchy, bold, lists, and links intact. HTML snippet is for a CMS, docs site, or internal wiki where you can paste markup into a source field.
Plain text is the escape hatch for places where formatting would actively cause problems, like a ticket description or a plain-text field that mangles indentation. Share link is for the browser-based hand-off: you get a URL that carries the rendered document with it.
Two toggles affect the result. Include styling applies to the HTML snippet and the share view only — turn it off when you want your destination site's own CSS to take over. The export panel gives you a single primary button (Copy link, Copy rich text, Copy HTML, or Download .html) plus a character count for the generated link, so you can see how long a URL you're about to send.
Below that sits a collapsible raw output block showing the exact HTML or URL string being copied. We find it useful when something looks off in the destination — you can see whether the problem is in the generated markup or in the app receiving the paste.
Step three: table of contents, numbering, and long documents
The Table of contents toggle auto-numbers your h2 and h3 headings and builds a linked list at the top. It hides itself automatically when the document has fewer than two headings, which prevents the odd orphaned list you'd otherwise get on a short note.
The most common mistake here is numbering headings manually in your source and then turning the toggle on, which gives you doubled numbers like "2. 2. Rollout plan." Strip manual numbers first and let the tool do it. It also only tracks h2 and h3 — if your structure leans on h4, those headings won't appear in the contents.
Length is the other thing to watch. Short and medium documents convert cleanly in every format. Once you're past that 8,000-character warning point, downloading the .html file is usually the better move: it's a self-contained file that opens in any browser, and it avoids sending a very long URL through a chat client that may wrap or truncate it.
What it does not do, and what to double-check
The preview is sanitized, meaning script tags and unsafe attributes are stripped before rendering. That makes it safe to paste unknown Markdown, but it also means this is a rendering and hand-off utility, not a pipeline for Markdown that depends on embedded scripting or custom components.
Share links are self-contained in the URL rather than stored on a server. That is good for privacy and bad for length: a large document produces a correspondingly long link, and some messaging apps handle that badly. Test the link once before sending it to a group.
Rendering conventions follow CommonMark-style Markdown, which is the closest thing the format has to a common denominator — the CommonMark specification is worth knowing if you write in a flavor with extensions. If your source relies on syntax from a specific dialect, compare the preview against your real renderer before publishing. And as with any conversion tool, verify formatting on anything where the numbers or structure genuinely matter.
Where this fits in your week
The pattern we see most is short-lived, high-friction documents: release notes for a non-technical PM, meeting notes for a client, a README excerpt for a designer, a spec for someone who lives in a word processor. Each one used to cost a screenshot, a re-formatting pass, or a shared doc account nobody wanted to create.
If the document you're passing along is a CV rather than a spec, Markdown conversion isn't the right tool — start with a resume builder instead. For everything else, you can browse the rest of the free online tools on the same site; they follow the same no-account, browser-side approach.
Our advice is simple: paste the real document, check the preview rather than assuming, and pick the export format based on what the recipient will open it in. The formatting that survives is the formatting that matches the destination.