# Enceladas > Enceladas is a unified email editor for developers and designers. Build emails with drag-and-drop, raw HTML/CSS, React Email, MJML, Handlebars, and EJS — then send directly with Keplars, with built-in delivery, tracking, and analytics. Enceladas is built by Swing Technologies and works alongside Keplars (https://keplars.com), a developer-first email delivery platform. Enceladas is free to use as a standalone editor, or can be connected to Keplars for production sending. ## What Enceladas Does - Unified email editor that supports multiple template formats in one interface - Supports: drag-and-drop visual editor, raw HTML/CSS, React Email, MJML, Handlebars, EJS - Real-time preview across email clients - Direct integration with Keplars for email delivery, tracking, and infrastructure - Built for developers who need flexibility without switching tools ## Key Features - Multi-format support: write in any email template language - Code editor with syntax highlighting for HTML, MJML, Handlebars, EJS - Drag-and-drop builder for non-technical users - Layer management and property controls - Live preview with email client simulation - One-click send via Keplars integration ## Who It's For - Developers building transactional or marketing email systems - Teams using React Email, MJML, or Handlebars who need a visual editor - Startups and SaaS companies integrating with Keplars for email delivery - Designers who need a no-code email builder that exports clean HTML ## Integrations - Keplars (email delivery and infrastructure) - Firebase (triggers and backend) - Vercel (edge functions) - React Email - MJML - Handlebars - EJS ## Company - Product: Enceladas - Company: Swing Technologies - Website: https://enceladas.com - Email platform: https://keplars.com - Dashboard: https://dash.keplars.com ## Pages - [Home](https://enceladas.com/): Product overview, features, and integrations - [Privacy Policy](https://enceladas.com/privacy-policy/): Data handling and privacy information - [Terms of Service](https://enceladas.com/terms-of-service/): Usage terms and conditions