Turn Markdown release notes into an HTML file

Start with a document people can scan

Release notes work well as a short introduction followed by concrete changes, a checklist and an example. The editable demonstration includes all three. Open it in the previewer, replace the sample text, and check the table and code block before exporting. You can also upload an existing .md file, up to 1,000,000 UTF-8 bytes.

Use a table for changes and a list for work

A table makes it easy to compare areas of a release. Task lists show what has shipped and what remains. The preview supports these common Markdown features; it does not claim identical styling or behavior to every publishing platform.

| Area | Update | Status |
| --- | --- | --- |
| Export | Portable HTML document | Released |

- [x] Review migration notes
- [ ] Tell the team

Keep code as code

A fenced block preserves indentation and makes the example separate from prose. The preview does not execute the JavaScript you put in a code block. Raw HTML is sanitized: scripts, event handlers and unsafe links are removed. If your publishing platform has different Markdown rules, inspect the final result there too.

```javascript
const release = { version: "2.4", ready: true };
console.log(release.version);
```

Choose the output for the destination

Copy HTML produces a sanitized fragment for a CMS or an existing page whose styles you control. Download HTML produces a complete document with its styles included, suitable for opening in a browser or sharing as a file. Download Markdown keeps the editable source. These outputs serve different jobs; copying a fragment does not package a whole webpage.

Know what stays in the browser

Conversion runs locally. External images are blocked in the preview until you enable them, because loading an image contacts its host. Portable HTML downloads omit remote images so they have no automatic remote image dependency; ordinary links can still lead to other sites when clicked. Optional draft saving uses this browser, with separate restore and delete controls. Enable it only when you want a draft retained on this device.

• Preview tables, task lists and code before export.
• Choose a fragment for an existing page or a styled document for a standalone file.
• Keep the .md source when you expect further edits.
• Use the draft controls to clear a saved copy on a shared browser.