Looks like you’re on the US site. Choose another location to see content specific to your location

Wedding planning software

Nearly 30% of brides spend 7-12 months planning their weddings

 

You could spend that time chasing emails, handling phone calls, juggling site visits, and making endless alterations to wedding floor plans. Or you could use Prismm (formerly Allseated), the best wedding planning software for brides and professionals alike.

Book a demo
Wedding planning software rendering from Prismm's platform. The space at the Four Seasons Toronto Tor-Vinci Ballroom includes 3D chairs and tables.

Wedding planner design software

Visualize and manipulate venues in stunning 3D with Prismm’s comprehensive wedding planning software. Easily design floor plans, arrange seating, manage guest lists, and efficiently collaborate with couples (and their in-laws!) — all in one place. From concept to “I do,” Prismm keeps you organized and streamlines your workflow from start to finish.

Trusted by marquee brands around the globe


Check out our top review ratings.

Read Prismm reviews on G2
An outdoor wedding space features rows of white chairs. There are also two prominent palm trees and a number of other plants that are pleasant.

Jim can come but Sue can’t. Carol likes Sue but not Jim. And, where does Brian sit?

Guest lists are constantly evolving. Who can make it? Who can’t? Who’s bringing whom? With Prismm’s advanced guest management system, you’re always in control. Our complete software solution lets you quickly tackle any last-minute changes and update seating arrangements in real-time. From initial planning to the wedding day, we provide all the wedding planning tools you need to streamline your event planning process.

An indoor wedding space featuring tables and chairs.

Piece of cake

Dreaming up the perfect wedding layout just got easier. Our wedding planning software lets you easily create and modify floor plans and seating arrangements. Everything’s to scale, so you can see exactly how those elegant tabletops and mouth-watering buffets will look. *chef’s kiss*

This is another image of the Four Seasons Toronto Tor-Vinci Ballroom's wedding space in the Prismm platform.

It’s your day; make it your vision

Bring your dreams to life with our extensive venue and design inventory. From the big decisions to the finer details, you can tailor the spaces to your exact needs — no compromises necessary. Our wedding planning software for brides and professional planners ensures every aspect is perfect, even when managing unique requests (like Uncle Harry insisting on serenading the couple down the aisle).

Move from pen to Prismm

Say goodbye to missed messages and endless spreadsheet rows with our innovative wedding planning software. Whether you’re calculating the wedding budget, need an efficient aisle planner, or want to better manage vendors, Prismm is the best wedding planner software to streamline every aspect of planning this most special day.

A woman compares her notes to an open laptop in front of a blue design element in the background. The woman is making sure that she has not missed anything in her event planning.

An ‘oh yes’ doesn’t need to lead to an ‘oh no’

Late RSVPs shouldn’t mean a last-minute meltdown, and with Prismm’s always-on real-time collaboration capabilities, it won’t. With our project management tools, you can update meals or make seating plan changes in a snap.

Three friends sit together. They are closely studying an open laptop.

No waste, no cry

Amend the guest list, food choices, and seating charts from one centralized workspace. With better planning comes reduced waste, helping to make every wedding a more sustainable one.

A man with glasses and a beard is smiling while talking to a colleague during a meeting at a table. Books and tablets are on the table, and large windows are in the background.

Get more people to say ‘I do’

Recommendations and positive reviews can help fill your calendar. By using Prismm’s wedding planning software, you can showcase your space’s potential and delight every couple.

Feastivities Events logoMAKE YOUR CLIENT’S BIG DAY PERFECT

 

“

Prismm has brought true operational efficiency into our office. Our floorplans are designed & scaled, we share them with our brides, and they love the guest list features too.”

Meryl Snow
Co-founder and Owner

Ready to get started?

 

Get a demo or create a free account
Book a demo Get started now

FAQs

  • The Prismm platform acts as a transformational bridge between real and virtual worlds, evolving how people visualize, design, plan, sell, and experience spaces.

  • Put simply, it’s software that interacts with real-world locations. It’s used to visualize, manipulate, analyze, display, and record physical environments.

  • The Prismm platform provides collaborative wedding planning tools to manage the guest list, design floor plans and view in 3D, and create seating arrangements all in one place. Our spatial design technology keeps you organized and gives you a way to plan virtually, all while simplifying the wedding planning process.

  • Yes, you can design a wedding seating chart in the Prismm platform! Once the event is created, the floor plan is designed, and RSVPs are listed in the guest list, it’s quick and easy to seat guests at the tables in the floor plan. You can also seat guests at specific seats at tables if desired. It’s simple to make changes, too, with all information updated in real-time.