---
title: "Email playground"
description: "Write email code and see the exact HTML the Unitpost engine produces — live, in your browser, with nothing to install. The same renderer that sends your mail."
url: https://www.unitpost.com/playground
section: "Email design suite"
updated: 2026-09-26
---
# Email playground

> Write email code and see the exact HTML the Unitpost engine produces — live, in your browser, with nothing to install. The same renderer that sends your mail.

## Highlights

- Pipeline: TSX text → parseTsx() → EmailDocument → renderToHtml() → live preview, all from @unitpost/email
- Runs entirely in the browser: no account, no saving, no network calls, no access to any workspace
- Preview at real mobile (375px) and desktop (640px) widths, so the email's own @media queries fire
- The same rendering path as the template editor's exact preview and the public gallery
- Render offline in your own code with `npm install @unitpost/email zod`

## Links

- [Email component library](https://www.unitpost.com/email)
- [Component reference](https://www.unitpost.com/components)
- [Template gallery](https://www.unitpost.com/templates/gallery)
- [Source (@unitpost/email)](https://github.com/unitpostcom/email)