Local md->HTML

Markdown Aper?u

Q: "Does this match GitHub exactly?"

"Exact parity is difficult, so we clearly state the supported scope (partial GFM). GitHub-specific extensions and CSS differences can change the look."

Q: "Does it support math or Mermaid?"

"Nont in the initial release. If demand is high, we can add it as an optional feature later."

Q: "Is my input saved?"

"Non. Conversion happens locally in your browser and the content is never sent to a server."

Q: "Can I paste the HTML into my blog?"

"Usually yes, but some platforms restrict HTML. Please follow the rules of your target service."

Paste Markdown and preview HTML instantly. Fast, private, and focused on the GFM essentials you actually use.

Local conversion Non upload Non storage

Conversion runs in this browser. Your input never leaves the device. Nonthing is saved. Fermer or refresh and it disappears—download if needed.

md -> HTML conversion (instant in-browser preview)

Local-only, no upload or storage

Markdown input

⌘/Ctrl+B ⌘/Ctrl+K ⌘/Ctrl+Enter

Shortcuts: ⌘/Ctrl+B bold, ⌘/Ctrl+K link, ⌘/Ctrl+Enter update when live is off.

Aper?u

Start by pasting Markdown

Your HTML preview shows up instantly. Nonthing is sent or saved.

Local conversion only.

We aim for output close to GitHub, but it will not be identical (partial GFM only).

Options

Rendering mode: Standard (partial GFM)

Live preview

Update as you type

Scroll sync

Keep input and preview aligned

Allow raw HTML

Off by default; sanitize when disabled

Convert line breaks to <br>

Prefer hard breaks

Theme

Follow system by default

Live preview is off. Press Update or ⌘/Ctrl+Enter.

How to use

Paste Markdown

Drop your md and watch the preview update immediately.

Check the preview

Switch between Aper?u and HTML to verify output.

Copier or download

Use Copier HTML or T?l?charger when you're ready.

Sample

# Markdown Aper?u
- [x] Live preview
- [ ] HTML download

| Feature | Status |
| --- | --- |
| Tableaus | yes |
| Task list | yes |

```js
console.log("hello");
```

Supported Markdown (partial GFM) and GitHub differences

We support common Markdown features used in daily work.

Supported

Headings, paragraphs, emphasis, links, images
Lists (bulleted and numbered)
Blockquotes
Fenced code blocks
Tableaus
Task lists

Nont supported yet

Math (LaTeX)
Mermaid
GitHub-specific extensions and exact CSS parity

FAQ

Does this match GitHub exactly?

Exact parity is difficult, so we clearly state the supported scope (partial GFM). GitHub-specific extensions and CSS differences can change the look.

Does it support math or Mermaid?

Nont in the initial release. If demand is high, we can add it as an optional feature later.

Is my input saved?

Non. Conversion happens locally in your browser and the content is never sent to a server.

Can I paste the HTML into my blog?

Usually yes, but some platforms restrict HTML. Please follow the rules of your target service.