rapid layout Visualization
Events and construction
rapid layout Visualization
Events and construction
About the app
Napkin 3D is a powerful and intuitive design tool built in Unreal Engine that allows users to create, visualize, and iterate spatial layouts in a fully interactive 3D environment.
Whether you're planning events, construction sites, traffic flow, or public spaces, Napkin 3D provides the tools to bring your ideas to life quickly and accurately. With a drag-and-drop workflow, categorized object library, multiple viewing modes, and a robust layout saving system, users can build and explore designs in real-time with ease.
Designed for both professionals and collaborators, Napkin 3D bridges the gap between planning and presentation—offering a modern, visual approach to layout design that’s fast, flexible, and client-friendly.
modes of movement
Free View
This mode allows users to navigate freely around the scene, similar to a traditional 3D modeling environment. It’s ideal for inspecting objects from any angle and for quickly jumping between different areas of the layout.
Walkthrough
Simulates a first-person perspective at an average human height, enabling users to "walk" through the environment. This mode is perfect for experiencing the design from a ground-level point of view, providing a realistic sense of scale and spatial flow—ideal for event layouts, architectural walkthroughs, and traffic simulations.
Ortho View
Provides an orthographic, top-down perspective, similar to what you might find in CAD software. This mode is useful for precise placement and alignment of objects, especially when working on floorplans or overhead layouts where accurate spacing and alignment are important.
Bring in objects
The Object Panel is the central hub for accessing and placing assets within your scene. It offers a categorized and highly customizable library of objects tailored to suit any client's needs.
Categorized for Clarity
Objects are organized into intuitive categories (e.g., furniture, barriers, signage, vehicles, staging, etc.), making it easy to browse and locate the right items for your project.
Client-Customizable Content
The panel supports a wide variety of assets, and its contents can be fully customized to match specific client requirements. Whether you're designing for events, construction layouts, traffic management, or public spaces, the panel can adapt to include only the relevant objects for your workflow.
Drag and Drop Workflow
Users can simply drag items from the Object Panel directly into the 3D space, streamlining the layout process and allowing for quick prototyping and iteration.
SAVE your layout
Our Saving System designed to streamline your workflow and keep your designs organized.
Slot-Based Saving
Easily save multiple layouts using a slot system that allows you to name each one clearly—for example, "Main Event Setup" or "Traffic Plan v2". This makes it simple to switch between variations or phases of a project.
Quick Recall
Load saved layouts instantly to review, modify, or present different versions of a design without losing your place or progress.
Import from Others
Share and collaborate with ease—layouts created by other users can be imported directly into your project, making team collaboration and client feedback seamless.
real world sunstudy
By using the geographic coordinates of your real-world site, Napkin 3D dynamically simulates the sun’s position and movement throughout the day and across different seasons. This allows you to visualize natural lighting, shadows, and sun exposure as they would occur on-site.
Perfect for outdoor event planning, construction phasing, and spatial analysis, this feature helps ensure your layout decisions are informed by actual environmental conditions—boosting both realism and functionality in your designs.
Measurement tool
With just a few clicks, users can measure the space between any two points—whether it’s between objects, across open areas, or along walkways. This is essential for ensuring accurate spacing, meeting regulations, and optimizing layout efficiency.
Whether you're planning seating arrangements, verifying clearance zones, or double-checking the dimensions of a construction layout, the Measurement Tool gives you the confidence that everything fits—exactly as intended.
Move objects alone a path
This tool makes it easy to define a route and move objects smoothly along it. Paths can be adjusted for direction, spacing, and speed—perfect for visualizing dynamic layouts and understanding spatial relationships in motion.
Ideal for traffic planning, crowd flow analysis, and event logistics, this feature adds a layer of realism that turns static layouts into fully visualized scenarios.
add egress & clearance
With a single click, a transparent clearance box appears around objects, representing the necessary buffer zones for egress paths, accessibility, or regulatory compliance. This visual aid helps ensure walkways, exits, and high-traffic areas remain unobstructed and safely navigable.
calculate cost
Tally up every placed object in the scene—broken down by category or type—and calculates the total estimated cost based on predefined pricing data. This makes it easy to stay on budget, prepare quotes, or assess the scale of a setup without manual counting or spreadsheets. Export Excel sheets from the program.
Trial END-USER LICENSE AGREEMENT
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This End-User License Agreement (referred to as the "EULA") is a legally binding agreement between you, the Licensee, an individual customer or entity, and Napkin 3D LLC, the company, and the author of Napkin 3D, the Software, which may include associated media, printed materials, and online or electronic documentation. This Agreement is a legally binding contract that includes terms that limit your legal rights and Licensors' liability to you, and shall govern all access to and use of the Software. You hereby agree, without limitation or alteration, to all the terms and conditions contained herein.
Napkin 3D LLC is providing free access to the Licensed Product Napkin 3D until Oct 10th for use by the Licensee. By installing, copying, or otherwise using the Licensed Product Napkin 3D, the Licensee agrees to be bound by the terms and conditions outlined in this EULA. However, if the Licensee does not agree to the terms and conditions outlined in this EULA, the said Licensee may not download, install, or use Software.
Definitions
"EULA" shall refer to this End-User-License-Agreement, including any amendment to this Agreement.
"Licensee" shall refer to the individual or entity that downloads and uses the Software.
"Licensor" shall refer to the company or author, Napkin 3D LLC
"Software/Licensed product" shall mean Napkin 3D the Licensed Product provided pursuant to this EULA.
Grant of License
Subject to the terms of this EULA, Napkin 3D LLC hereby grants to the Licensee, a royalty-free, revocable, limited, non-exclusive license during the term of this EULA to possess and to use a copy of the Software. The Software is being distributed by Napkin 3D LLC. Licensee is not allowed to make a charge for distributing the Software, either for profit or merely to recover media and distribution costs.
Intellectual Property
You hereby unconditionally agree that all rights, title and interest in the copyrights and other intellectual property rights in the Licensed Product reside with the Licensor. The trademarks, logos, designs, and service marks appearing on the Licensed Product are registered and unregistered marks of the Licensor. Accordingly, nothing in this EULA or the Licensed Product grants you any right to use any form of intellectual property contained in the Licensed Product. Therefore, all rights, titles, interests, and copyrights in and/or to the Software, including but not limited to all images, graphics, animations, audio, video, music, text, data, code, algorithm, and information, are owned by the Licensor. Accordingly, the Software is protected by all applicable copyright laws and international treaties, and the Licensee is expected to use the Software concerning all intellectual property contained therein, except as otherwise provided for in this EULA.
Description of Rights and Limitations
Installation and Use: Licensee may install and use the Software on a shared computer or concurrently on different computers, and make multiple back-up copies of the Software,
solely for Licensee's use within Licensee's business or personal use.
Reproduction and Distribution: Licensee may not duplicate or redistribute copies of the Software, without the Licensors express written permission.
Licensee Limitation: The Licensee may not:
1. Use the Software for any purpose other than personal and non-commercial purposes;
2. Use the Software for any illegal or unlawful purpose;
3. Gather factual content or any other portion of the Software by any automated means, including but not limited to database scraping or screen scraping; or
4. Reverse engineer, decompile, or disassemble the Software, except and only to the extent that such activity is expressly permitted by applicable law notwithstanding the limitation.
Update and Maintenance
Napkin 3D LLC shall provide updates and maintenance on an as-needed basis.
Support
Napkin 3D LLC has no obligation to Software support, or to continue providing or updating any of the Software.
Termination
In the event of termination, all licenses provided under this EULA shall immediately terminate, and you agree to discontinue accessing or attempting to access this Licensed product.
Accordingly, this EULA may be:
1. Automatically terminated if the Licensee fails to comply with any of the terms and conditions under this EULA;
2. Terminated by Napkin 3D LLC; or
3. Terminated by the Licensee.
Either Napkin 3D LLC or the Licensee may terminate this EULA immediately upon written notice to the other party, including but not limited to electronic mail.
Non-Transferability
The Licensee has the option to permanently transfer all rights under this EULA, provided the recipient agrees to the terms of this EULA. Accordingly, this EULA is not assignable or transferable by the Licensee without the prior written consent of Napkin 3D LLC; and any attempt to do so shall be void.
Notice
Any notice, report, approval or consent required under this EULA shall be in writing and deemed to have been duly given if delivered by recorded delivery to the respective addresses of the parties.
Integration
Both parties hereby agree that this EULA is the entire and exclusive statement and legal acknowledgment of the mutual understanding of the parties and supersedes and cancels any previous written and oral agreement and/or communication relating to the subject matter of this EULA.
Severability
No delay or failure to exercise, on the part of either party, any privilege, power or rights under this EULA shall operate as a waiver of any of the terms and provisions of this EULA. Accordingly, no single or partial exercise of any right under this Agreement shall preclude further exercise of any other right under this EULA. Suppose any of the outlined provisions of this EULA is deemed to be unenforceable or invalid in whole or in part by a court of competent jurisdiction. In that case, such provision shall be limited to the minimum extent necessary for this EULA to remain in full force and effect and enforceable. The remaining provisions of this Agreement shall not be rendered unenforceable or invalid. They shall continue to be enforceable and valid in isolation of the unenforceable and invalid provisions of this EULA.
Warranty and Disclaimer
Napkin 3D LLC, and author of the Software, expressly disclaim any warranty for Napkin 3D. The Licensed Product and all applicable documentation is provided as-is, without warranty of any kind, whether express or implied, including, without limitation, the implied warranties of merchantability, fitness for a particular purpose, or non-infringement. Accordingly, the Licensee accepts any risk arising out of the use or performance of the Software.
Limited Liability
The Licensee agrees that Napkin 3D LLC shall not be liable to Licensee, or any other related person or entity claiming any loss of profits, income, savings, or any other consequential, incidental, special, punitive, direct or indirect damage, whether arising in contract, tort, warranty, or otherwise. Even if Napkin 3D LLC has been advised of the possibility of such damages. These limitations shall necessarily apply regardless of the primary purpose of any limited remedy. Under no circumstances shall Napkin 3D LLC aggregate liability to the Licensee, or any other person or entity claiming through the Licensee, exceed the actual monetary amount paid by the Licensee to Napkin 3D LLC for the Software.
Indemnification
You hereby agree to indemnify and hold Napkin 3D LLC harmless from and against all liabilities, damages, losses or expenses, including but not limited to reasonable attorney or other professional fees in any claim, demand, action or proceeding initiated by any third-party against Napkin 3D LLC, arising from any of your acts, including without limitation, violating this EULA or any other agreement or any applicable law.
Entire Agreement
This Agreement rightly constitutes the entire understanding between Napkin 3D LLC and the Licensee and all parties involved. It supersedes all prior agreements of the parties, whether written or oral, express or implied, statement, condition, or a representation or warranty.
Governing Law and Jurisdiction
This EULA shall be deemed to be construed under the jurisdiction of the courts located in United States, without regard to conflicts of laws as regards the provisions thereof. Any legal action relating to this EULA shall be brought exclusively in the courts of United States, and all parties consent to the jurisdiction thereof. Furthermore, the prevailing party in any action to enforce this EULA shall be entitled to recover costs and expenses including, without limitation, legal fees. Accordingly, this EULA is made within the exclusive jurisdiction of the United States, and its jurisdiction shall supersede any other jurisdiction of either party's election.
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