GuestLens is a self-hosted PHP script for collecting guest photos and videos at events. A host creates an event and gets a QR code. Guests scan it and upload photos and videos from their phone browser. There is no app to install and no account to make. The host gets a live gallery, a big-screen slideshow, a guestbook with voice notes, a photo book PDF, a video of the photos, an offline album, and one ZIP file with everything. You install GuestLens on your own server and run it as your own service. You are the super admin. Your customers are the hosts: couples, event planners, photographers, and venues. You set the plans and prices, take payments with Stripe, PayPal, or bank transfer, and put your own brand on every page and email. Version 3.0 adds bookings, the photo book, the video download, the offline album, site sponsors, spam protection, host support, and an API with a Perfex CRM connector. Live demo Demo: https://guestlens-demo.jawad.work/ Host login: host@guestlens.demo / demo-password-1 Super admin login: admin@guestlens.demo / demo-password-1 Guest page (wedding, uploads wait for approval): https://guestlens-demo.jawad.work/e/maya-and-daniel Guest page (birthday, uploads show right away): https://guestlens-demo.jawad.work/e/priya-turns-30 Booking page of the demo host: https://guestlens-demo.jawad.work/book/rosewood The login page has one-click buttons for both logins. Open a guest page on your phone and upload a few photos. The demo resets every day at 04:00 UTC.