Preview the work before you publish.
A lightweight Markdown preview for notes, prompts, and first drafts. Rendering happens locally in your browser with a deliberately small, safe Markdown subset.
Markdown input
Customize this template
Supports headings, emphasis, lists, quotes, inline code, and fenced code blocks.
Rendered preview
A reviewable first draft
Use context, constraints, and a clear output shape.
- Keep sources visible
- Label uncertainty
- Check the final result
A useful workflow leaves you with more clarity.
const check = true;
return check;brief-first
Scroll either panel to move through long drafts together.
Links and raw HTML are intentionally not interpreted in this local preview.
Why this belongs in the workflow.
Small tools are useful when they make a review step clearer, not when they promise to replace judgment. This utility keeps the work visible and processes the input locally in your browser.
Related tools and guides.
Continue with a small utility or a practical guide that supports the same step in your workflow.
How to use the Markdown preview.
- Paste Markdown into the input panel.
- Review headings, lists, quotes, inline code, and fenced code blocks.
- Copy the source or download the rendered HTML when the structure is ready.
Worked example: review a Markdown handoff before sharing
Scenario: You're handing off a feature branch to a reviewer. The handoff is written in Markdown with headings, action items, a blockquote for context, and a fenced code block showing the key diff.
Input:
# Handoff — PR #342
## Confirmed
- Owner: Sam
- Due: Friday
## Context
> The rate-limiter refactor touches the auth middleware. Review the token-refresh logic carefully.
## Changes
```diff
- const token = getToken();
+ const token = await refreshIfNeeded(getToken());
```
## Open questions
- [ ] Does the new refresh path handle clock skew?
- [ ] Should we add a metric for refresh latency?Preview check: the rendered preview lets you verify heading hierarchy, list rendering, blockquote styling, and code block language tags before you send the Markdown to GitHub, Notion, or Slack.
When to use this pattern: before sharing any Markdown that will be rendered by another platform, when you need to download clean HTML for a static page, or when you want a distraction-free writing surface that shows structure instantly.
When not to use it: for complex Markdown with tables, footnotes, math, or custom extensions — those require a full parser like remark/rehype or a platform-specific preview.
What this tool does not promise
It does not support every Markdown extension, execute code, fetch remote content, or safely interpret raw HTML. It is a local structural preview, not a publishing or security validator. Unsupported features include: tables, footnotes, definition lists, math (LaTeX), task lists, autolinks, strikethrough, and custom container directives. Links and raw HTML in the source are intentionally not interpreted — this is a design choice to keep the preview predictable and safe.
Important: All processing happens locally in this browser. Token counts are estimates, not official model billing measurements.
When to reach for this tool
- Writing a handoff or status note: you need to verify that headings, lists, and code blocks render as intended before committing to a platform.
- Preparing a static HTML snippet: download the rendered HTML and paste it into a static site, email template, or documentation page.
- Distraction-free drafting: the full-screen mode hides UI chrome so you can focus on structure.
- Checking link integrity: the preview renders links so you can visually confirm destinations before sharing.
When this tool is the wrong choice
- You need tables, math, footnotes, or GitHub-flavored extensions — use a full Markdown editor or the target platform's own preview.
- You're processing untrusted Markdown from an external source — this tool does not sanitize HTML; it deliberately passes through a safe subset only.
- You need real-time collaboration or version history — this is a single-browser, local-storage tool.
Continue the workflow
Prepare a traceable research brief before turning notes into a polished document.
Turn meeting notes into action items when the Markdown draft is a working record rather than a final page.
Count the prompt words first when you'll feed the Markdown output into an AI prompt.