OSWP
What it is
OSWP is a self-hosted wedding platform covering invitations, RSVPs, planning, and an AI planner named Etta. Smart invitations create personalized guest links, track opens, and follow up automatically with people who do not open them. RSVP tools record dietary preferences, plus-ones, table assignments, and exportable guest lists. A planning board combines vendors, tasks, budget envelopes, and timelines. Seating supports drag-and-drop placement and automatic suggestions that consider dietary needs, relationships, and family dynamics. Couples can publish an RSVP-enabled wedding website with themes, custom domains, and registry integration. Etta can use planning data to answer questions and send guest nudges. Users can bring their own database, cloud, and AI provider. The free Community plan includes unlimited guests and core features when self-hosted. The Couple plan costs £12 per month with managed hosting and backups. Planner costs £49 per month for up to 10 active weddings.
For and against
For
- Free Community plan with unlimited guests
- Invitation tracking and automatic follow-ups
- RSVPs include dietary and seating details
- AI planner can answer questions and send nudges
- Custom domains and registry integration
Against
- Community excludes managed hosting and backups
- Commercial hosting rights are reserved
- Planner plan supports up to 10 active weddings
- Paid plans start at £12 per month
The verdict
OSWP brings guest communication, RSVP management, planning, seating, and website publishing together in a self-hostable package. The free plan requires users to manage hosting and backups, while paid plans add managed services.
Who it suits
OSWP suits couples planning weddings and planners managing multiple events. It is also for users who want self-hosting and control over their database, cloud, or AI provider.
Plans and prices
Community
Unlimited guests · all core features · Etta with your own key · self-hosted
Read 8 Oct 2026 · oswp.carvallo.io
Couple
Managed hosting · daily automated backups · Etta included · custom domain setup
Read 8 Oct 2026 · oswp.carvallo.io
Planner
Up to 10 active weddings · planner dashboard · white-label option · priority support
Read 8 Oct 2026 · oswp.carvallo.io
On the record
- AI assistant
- Etta is described as an AI wedding planner that can use planning data to answer questions and take actions such as sending guest nudges.oswp.carvallo.io · read 8 Oct 2026
- Data and hosting
- OSWP says it is self-hostable and lets users bring their own database, cloud, and AI provider.oswp.carvallo.io · read 8 Oct 2026
- Integrations
- The product page lists Claude and OpenAI for AI, Resend and React Email for email, Better Auth for authentication, and Vercel and Docker for deployment.oswp.carvallo.io · read 8 Oct 2026
- Invitations
- Smart invitations support personalised guest links, tracking, and automatic follow-ups for people who do not open them.oswp.carvallo.io · read 8 Oct 2026
- License
- The product page says OSWP is source-available under FSL-1.1 and that commercial hosting rights are reserved.oswp.carvallo.io · read 8 Oct 2026
- Planner audience and limit
- The Planner plan is for wedding planners managing multiple couples and includes up to 10 active weddings.oswp.carvallo.io · read 8 Oct 2026
- Planning features
- The planning board combines vendor management, task tracking, budget envelopes, and timeline views.oswp.carvallo.io · read 8 Oct 2026
- Privacy claim
- The product page says no data is harvested.oswp.carvallo.io · read 8 Oct 2026
- Purpose
- OSWP is a self-hosted wedding platform for invitations, RSVPs, planning, and an AI wedding planner called Etta.oswp.carvallo.io · read 8 Oct 2026
- RSVPs
- RSVP management includes dietary preferences, plus-ones, table assignments, and exportable guest lists.oswp.carvallo.io · read 8 Oct 2026
- Seating
- Seating arrangements support drag-and-drop placement and automatic suggestions that account for dietary needs, relationships, and family dynamics.oswp.carvallo.io · read 8 Oct 2026
- Wedding website
- Users can publish an RSVP-enabled wedding website with themes, custom domains, and a registry integration layer.oswp.carvallo.io · read 8 Oct 2026
