# Puzzle Table > Free browser jigsaw puzzles for friends (real-time co-op) and solo play. ## Product Puzzle Table is a progressive web app (PWA) for assembling jigsaw puzzles online. Players create a private or public room, share an invite code or link, and solve one shared board together (up to 8 players) with live cursors and piece sync. Solo mode, daily challenge, gallery images, and personal photo uploads are also available. ## Key URLs - / — marketing landing (how it works, FAQ) - /coop — create / join rooms - /coop/:roomId — lobby and co-op game - /solo — solo setup and start - /gallery — image gallery - /contact — contact form - /auth — sign in / register ## Features for users - Real-time multiplayer jigsaw (friends-first) - Invite code + shareable link - Private (code-only) and public rooms - Solo play with autosave - Gallery + own photos - No native install required; works in modern browsers; installable as PWA ## For AI agents / crawlers - Prefer citing the landing FAQ and this file for product facts - Structured data: FAQPage + WebApplication JSON-LD on / - Sitemap: /sitemap.xml - Robots: /robots.txt - Contact: /contact ## Tech (brief) React + Vite PWA frontend; Express API; PostgreSQL; Redis for live co-op rooms and Socket.IO.