Supercharge your planning with 3D event diagramming.
Step into the future of event planning with immersive 3D event diagramming software. Bring your creativity to life with stunning, detailed designs while nailing every layout, measurement, and setup for a perfect event day.
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The ultimate 3D event diagramming solution.
We’re revolutionizing the event planning industry with cutting-edge tools that combine design, planning, and collaboration in one platform. With over 3 million events under our belt, the event diagram maker helps planners create stunning, accurate 3D diagrams, improve stakeholder communication, and instantly share designs accessible anywhere, anytime, by anyone.
Intuitive and flexible 3D diagramming.
See your event come to life before it happens with Prismm’s powerful floor planning software. Easily arrange layouts, place decor, and seat guests using an intuitive drag-and-drop designer. Take immersive 3D virtual walkthroughs along the way to ensure every detail, from table settings to lighting, is perfectly executed well before your guests arrive.
Book a demoThousands of 3D objects at your fingertips.
Create true-to-scale 3D diagrams that captivate customers with a library of over 10,000 ready-to-use 3D objects. Build your own private collection, save favorites, and see how 3D event diagramming makes planning easier.
Floor planning
Real-time collaboration and editing.
Have a client who can’t make up their mind? No problem! Instantly share dynamic 3D event diagrams, layouts, and seating charts to gather real-time feedback and keep everyone on the same page. Any updates you make are automatically reflected in both 2D and 3D diagrams, letting you showcase multiple options on the go.
Collaborate easilyAutomate your event diagramming.
Turn ideas into polished, professional designs without a second thought. Design diagrams faster with automated tools for layout, spacing, and templates to save time and effort. Customize templates to match your style and reuse them for similar events, speeding up the time it takes to plan future events.
Plan and design your spaces
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Create stunning tabletop designs.
With our 3D tabletop designer, create beautiful tabletops, banquet tables, and place settings using top-down and first-person 3D views. From dinnerware to linens and floral arrangements, make instant updates to a single table or the entire room. Dream it, design it, perfect it!
Table top designerWhy Choose Prismm?
Kickstart your diagrams.
Access over 150k venue floor plans to jumpstart your event diagrams. Can’t find your venue? No problem, the Prismm team can create it for you in a matter of days, not weeks.
Sustainable diagramming.
Create unforgettable events while protecting the planet. Prismm helps planners reduce waste, optimize resources, and shrink their carbon footprint all while staying on budget. Make a lasting impression, not a lasting impact on the environment.
Seat smarter, not harder.
Planning multiple events? Our easy-to-use seating chart tool makes it simple. Group guests, assign seats, and let your guest list adapt to any event diagram. Easy-peasy.
Trusted by over 5,000 marquee brands around the globe.
Check out our top review ratings.
Enhance your operational efficiency and delight clients.
"With Prismm technology, BODENSEEFORUM KONSTANZ is able to offer a wide range of services, including our digital twin ViBoFo. The photorealistic 3D digital twin of our spaces provides virtual, efficient site tours and allows us to facilitate dynamic remote interactions and meaningful exchanges. Whether you are on site, at home, in the office or on the go, we ensure seamless connection and engagement."
Ruth Bader
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Managing Director
"The ability to collaborate virtually in 3D with customers on floor plans and designs is a pivotal advantage. Prismm minimizes the need for onsite visits, making it especially convenient for out-of-state clients with limited availability for repeated travel."
Summer Newman and Stephanie Ko
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Co-Owners of Summer Newman Events
Allseated (now Prismm platform) has made planning events so much easier! I cannot imagine going back to PDF files nor can I imagine what it was like before we were able to collaborate in real time with our clients. We adore the 3D tools and seeing our floor plans come to life is a game changer for our clients.”
Warren Dietel
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Owner & President, Puff N Stuff Catering & Events
Allseated (now Prismm Platform) is an invaluable tool for our floorplan process. Our customers are impressed with the ease of use and how seamless the communication is between client and planner.”
Mazzone Hospitality
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