## Startup showcase (1-1 of 1)

### Papermark
Share documents and data rooms, with page-by-page analytics

9,278 GitHub stars (papermark/papermark, AGPL-3.0, 2026-10-27)

Website · Sales · by Papermark · launched 2023-05-29. https://www.papermark.com

- Frontend: Next.js
- Hosting: Vercel (`vercel`, priced)
- Storage & media: Vercel (`vercel`, priced)
- Backend: Prisma, Upstash (`upstash`, priced), Trigger.dev (`trigger-dev`, priced)
- Database: PostgreSQL
- Sign-in: Auth.js (NextAuth), Hanko (`hanko`)
- Payments: Stripe (`stripe`, priced)
- Email: Resend (`resend`, priced)
- AI: OpenAI API (`openai`, priced)
- Analytics: Tinybird, PostHog (`posthog`, priced)

Most used: Auth.js (NextAuth) (1), Hanko (1), Next.js (1), OpenAI API (1), PostgreSQL (1), PostHog (1), Prisma (1), Resend (1), Stripe (1), Tinybird (1), Trigger.dev (1), Upstash (1).

**Caveats (show these word for word)**
- Stacks are read from each product's public code (manifests and environment templates) on the date shown; a service listed there may be optional or used only by the hosted version. GitHub and App Store figures are as read on their checked_at date.

Confidence: medium.

Use estimate_cost or audit_stack with the priced vendor ids to see what a stack like this costs.