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Sailkit

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Updated: 18 Jun 2025
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SailKit is an open-source toolkit for composing responsive email templates in SvelteKit applications

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Overview

SailKit is an innovative toolkit designed for developers looking to create responsive email templates within SvelteKit applications. As an open-source solution, it offers a streamlined approach to composing high-quality, production-ready emails that are visually consistent across various email clients and devices. Even in its early stages, SailKit aims to simplify the complexities of email rendering, making it an essential tool for anyone engaged in modern web development.

What makes SailKit particularly appealing is its seamless integration with Svelte 5, allowing developers to utilize familiar components and primitives while benefiting from the robust MJML rendering engine. This combination ensures that email templates can be crafted efficiently, enabling quick previews and optimized outputs.

Features

  • Type-Safe: Full support for TypeScript, ensuring strong typing throughout your email template development process.
  • Responsive by Default: Leverages the MJML engine to guarantee that emails look great on any device without extra effort.
  • Great DX: Provides Svelte primitives that make composing templates feel natural and effortless for developers.
  • Simple API: Intuitive methods for rendering and previewing templates, minimizing the learning curve and enhancing productivity.
  • Production-Ready: Outputs highly optimized, responsive HTML that adheres to best practices for email compatibility.
  • Core Functions: Includes essential functions like renderEmail to convert Svelte components into email-optimized HTML, and previewEmail for immediate visual feedback in a browser.
  • Comprehensive Components: Offers a variety of Svelte primitives for building functional and aesthetically pleasing email templates, facilitating complex layouts easily.

Overall, SailKit is a promising tool for developers looking to embrace responsive email design with the modern capabilities of Svelte.