Turn any Zoho Sign template into a permanent, shareable URL or QR code. Signers click the link, enter their name and email, and sign — no Zoho account, no friction, no per-user fees.
Live at signflow.ink · $60/year flat.
Zoho Sign is powerful but built for the person sending documents, not the person signing them. Every signer needs a Zoho account, or you're manually emailing each one. For businesses that collect signatures from the public — waivers, intake forms, contracts — that friction kills conversion.
SignFlow sits in front of Zoho Sign and gives you a permanent link you can put on a website, a QR code on a counter, or an email. The signer never sees Zoho. They see your branded page, they sign, they're done.
- Permanent signing links — one URL per template, works forever, unlimited signers
- QR codes — print-ready, generated automatically for each link
- Branded landing pages — your logo, your colors, your domain
- Analytics — visits, submissions, conversion rates per link
- Multi-role support — templates with multiple signers, each gets their own step
- Stripe billing — subscription management with webhook-idempotent handling
- React 19 + TypeScript + Vite — single-page app, no SSR needed
- Vercel Edge Functions — API routes for Zoho OAuth, Stripe webhooks, link management
- Supabase — auth, Postgres database, row-level security
- Zoho Sign API — multi-region OAuth, credentials stay server-side
- Stripe — signature verification + replay protection on webhooks
The interesting part is the Zoho OAuth flow — it handles multiple Zoho data regions (US, EU, IN, AU) with per-tenant credential storage, and the signing session is entirely server-mediated so credentials never reach the browser.
npm install
cp .env.local.example .env.local # Add your Zoho + Supabase + Stripe keys
npm run dev:full # Frontend on :5173, API on :3001
npm test # VitestProprietary. All rights reserved.