Prismm is closing
Move your floor plans before Prismm shuts down
Cvent is retiring the standalone Prismm platform — formerly AllSeated — on 31 December 2026. Wedsy has a free 2D and 3D floor plan and seating designer you can move to, with no per-project pricing.
Check the notice in your own Cvent account for the terms that apply to you.
What carries over
Room and marquee dimensions
Draw walls or enter the exact width and length of your space. Layouts size to real dimensions, not an abstract canvas.
Ceremony and reception layouts
Start from a ceremony (banked seating, aisle, arch and signing table), a drinks reception, or a seated wedding breakfast — then reset the room between them.
Tables, shapes and seat counts
Round, rectangular and feasting tables with per-table seat counts, plus dance floors, bars and staging.
2D and 3D views
Design flat, then walk the room in 3D to sanity-check sightlines and circulation before you commit.
Guest seating assignments
Assign guests to seats, and let Wedsy do a first pass automatically from your guest list.
Being straight about the gap: there is no automated Prismm importer yet, so layouts have to be rebuilt for now. We are building one and need real export files to do it properly — send us one and we will prioritise your layouts. Wedsy is also a wedding planning platform rather than a venue management system, so Cvent-side sales workflows do not have an equivalent here.
Prismm shutdown: common questions
When exactly does Prismm shut down?+
Cvent has said the standalone Prismm platform sunsets on 31 December 2026. Prismm was acquired by Cvent in April 2025, having rebranded from AllSeated in January 2024. Check your Cvent account for the notice that applies to you — your own contract terms may differ.
What does Wedsy's floor plan tool cost?+
Nothing. The 2D and 3D floor plan and seating designer is free, with no per-project or per-event pricing. You can design a layout without even creating an account, and keep it by signing up for a free account afterwards.
Can I import my existing Prismm layouts?+
Not yet — we are building an importer and need real export files to do it properly rather than guess at the format. If you can share an export from your account, get in touch and we will prioritise your layouts. In the meantime the planner can rebuild a room from its dimensions in a few minutes.
Does Wedsy do 3D like Prismm did?+
Yes. Layouts can be viewed and edited in 2D and walked through in 3D, and you can draw walls or size a marquee to real dimensions rather than only placing tables on a blank canvas.
Is this suitable for a venue rather than one couple?+
The floor plan tool is, and it is free to use for as many layouts as you like. Wedsy is primarily a wedding planning platform rather than a full venue management system, so if you relied on Prismm for guest-list sales workflows or Cvent integrations you should evaluate that side carefully before switching.
Start with your next event
Open the planner, enter your room dimensions and guest count, and see the layout build itself. Nothing to install and no card required.
Open the free floor plan tool