# Blocks MailCraft > A drag-and-drop HTML email editor, packaged as a single zero-dependency Web Component (``). HTML in, HTML out; no framework, no build step, no network requests. Published on npm as `@seliseblocks/mailcraft`. The pages below are served as raw Markdown — byte-identical to the repository sources — so they can be fetched and pasted into a context window whole. ## Docs - [Product & integration guide](https://mailcraft.seliseblocks.com/DOCS.md.txt): the full guide — mounting, framework wiring, storage/AI/i18n contracts, the API reference, and an appendix listing every UI message key with its English default - [README](https://mailcraft.seliseblocks.com/README.md.txt): the five-minute version ## Optional - [Live demo](https://mailcraft.seliseblocks.com/examples/vanilla.html): the editor itself, running in the browser - [npm package](https://www.npmjs.com/package/@seliseblocks/mailcraft)