LibreWeddingPlanner
LibreWeddingPlanner is free, open source software designed to help individuals organize their wedding. It provides features like guest and expense management, website builder, RSVP forms, and seating plan calculation among others. This project was created to help individuals organize their own wedding, without the need to rely on proprietary software or services. We firmly believe that the data related to your wedding should be owned by you, and not by a third party.
Website: https://libreweddingplanner.org/