Hyper Elements
Best for coding agents, and for emails checked in every client
React components your agent writes, rendered to email HTML that works in Outlook, checked as it renders, previewed in every email client, and kept on brand with a theme.
Pick it if
- You want typed props, loops and conditions in TypeScript, with no templating language on top
- You want a preview in Outlook, Gmail and Apple Mail on every change, free and on your machine
- You want problems caught as each email renders, in your tests and CI, with what to write instead
- An agent writes your emails: 1.3× faster, with 1.5× fewer output tokens, than with MJML in our benchmark
Keep in mind
- Templates are React components, in TypeScript or JavaScript
- No converter from MJML yet





