Siggy

Email signature builder for designers, creatives, and freelancers. Pick a template, type your details, copy/paste into Gmail. No account, no setup.

Live: siggy.app (or siggy-orpin.vercel.app)

What it does

• Six fixed templates (edge, bold, card, clean, plus variants) — all email-client safe (Gmail web, Outlook web, Outlook Windows Classic, Apple Mail)
• Live preview and copy-paste HTML output, both rendered through the same pipeline
• Optional headshot upload (Vercel Blob, processed via sharp)
• Custom name typography rendered as an image (Satori + Resvg) so it survives email clients that strip web fonts
• Install guide for Gmail paste

Pricing

• Free with a small watermark
• $19 lifetime license removes the watermark and unlocks full font/headshot options
• Payments via Stripe Checkout (hosted); access proven by HMAC-signed token in localStorage, no DB

Tech stack

• Framework: Next.js 15 (App Router) on Vercel
• UI: React 19 + TypeScript + Tailwind
• Image rendering: Satori + @resvg/resvg-js (server-side name images), sharp (headshot processing)
• Storage: Vercel Blob for user-uploaded assets
• Payments: Stripe Checkout (hosted page) + HMAC access token (no DB)
• Tests: Vitest with snapshot tests for template rendering

Run locally

npm install
cp .env.local.example .env.local   # add BLOB_READ_WRITE_TOKEN, STRIPE_SECRET_KEY, STRIPE_PRICE_ID, SIGGY_TOKEN_SECRET
npm run dev                         # http://localhost:3000

For tests:

npm test                # Vitest
npx tsc --noEmit        # type check
npx vitest --run -u     # update template snapshots

Status

MVP shipped, in test mode for payments. Six templates, Gmail-ready output, Stripe-based unlock flow live. Outlook/Apple Mail render adapters in place.

License

Source-available for review. Not licensed for redistribution.