Email HTML/CSS Compatibility Checker

This playground is an interactive tool to check how your HTML emails will render across 32+ email clients including Gmail, Outlook, Apple Mail, and Yahoo. It runs entirely in your browser and requires JavaScript to be enabled.

Compatibility data is sourced from caniemail.com.

The underlying library, caniemail-sdk, can be used directly: npm install caniemail-sdk. See the GitHub repository for details.