Alias Gen

A minimal web app for generating unique email aliases on your own domain. Create a per-service alias in seconds, copy it, and register it with your email provider.

Inspired by SimpleLogin, but built for providers that let you create unlimited aliases on a custom domain - like Tuta, your own mail server, or any host that supports catch-all or unlimited alias creation.

How it works

The alias is generated as:

{service}.{suffix}@{domain}

The suffix depends on the selected mode:

• Random characters - configurable length (3-12 chars), e.g. [email protected]
• Random words - 1-3 words (adjective, or adjectives + noun), e.g. [email protected] or [email protected]

Configuration is saved to both the URL hash fragment and localStorage. On load, the hash takes priority - if empty (e.g. when opened as a PWA), localStorage is used. Either way, invalid or missing fields fall back to sensible defaults.

The hash fragment is base64-encoded and never sent to the server, so your config stays client-side.

Features

• Two suffix modes with configurable length/word count
• Debounced domain validation
• Copy on click or Enter, auto-clears for the next alias
• Lazy-loaded Three.js shader background
• Installable PWA with persistent configuration

Stack

• SvelteKit
• Three.js - GLSL shader background (lazy-loaded)
• shadcn-svelte - UI components
• runed - reactive utilities (Debounced, Previous)
• random-word-slugs - word-based suffixes
• Zod - schema validation
• @vite-pwa/sveltekit - PWA support
• Tailwind CSS

Getting started

pnpm install
pnpm dev

Build

pnpm build
pnpm preview

PWA install prompt only appears in preview or production - not in dev.