Best Free Lighting Design Software of 2025

Established in 2018 and headquartered in New York, Coohom is a leading global cloud-based, 3D design platform that provides all-in-one software and services to empower designers and businesses to design a professional project in minutes, and get photo-realistic 3D visualizations in seconds. With a presence spanning the United States, China, Korea, Thailand, Vietnam and Indonesia, Coohom's innovative solutions have garnered the trust of over 10 million customers from 200 countries. With the aim of facilitating the digital transformation of customers in the interior design, furniture & home decor, and Kitchen & Bath industry, Coohom provides a comprehensive suit of software encompassing design, rendering, marketing, production, and construction, helping to streamline their workflows and achieve success. Coohom solutions have been featured in world-renowned publications like Forbes and TechNode, as well as industry-specific magazines including Panels & Furniture Asia, FurnitureToday, HomeAccents, and Kitchen & Bath Business. Furthermore, Coohom is a proud industry partner of the American Society of Interior Designers (ASID), demonstrating its commitment to the design community.

ReluxDesktop, a high-performance, intuitively operated application that simulates artificial light and daylight, is highly-efficient. It can provide quick and efficient support for all aspects of large and small projects without any unnecessary loops. Simulating lighting and sensors in real time! Calculation of absolute values, national, and international standards, compatible CAD and BIM systems. And much more. Thanks to our industry partners, the application is free to you. ReluxDesktop will become your daily tool. You'll be amazed at how much time you can save! Add-on for other applications Autodesk Revit functions. Add-on to ReluxDesktop Based on current standards, real tunnel calculation.

GreenScapes is an intuitive program designed for landscape, hardscape, and lighting design, offering the most comprehensive features available. You can generate stunning landscape designs in just a few minutes, complete with photo-realistic visuals that showcase all elements integrated into the project. The program includes helpful training videos tailored to each command, as well as a sequential tutorial that guides users through the entire design process, eliminating the need for tedious manuals. Additionally, advanced techniques are also available for those looking to expand their skills. GreenScapes enables you to impress potential clients by allowing them to visualize their home as if the project were already completed, significantly increasing your chances of closing deals. We invite you to experience it for yourself. Although primarily designed for Windows, it is compatible with Mac through virtual environments like Parallels/Windows, allowing users to effortlessly toggle between macOS and Windows, thus providing a versatile experience. With GreenScapes, you can craft exquisite, photo-realistic designs that incorporate a variety of landscape content. Enjoy the ease and creativity that come with using this powerful design tool.

The SweetLight DMX controller system is equipped with robust lighting control software alongside a variety of DMX interfaces tailored to meet your needs. Maximize the potential of your lighting setup using this user-friendly DMX control system, allowing the software to autonomously deliver diverse shows for extended durations. You can easily choose a collection of par cans and modify channel levels, as well as fade modes and durations for each step in the sequence. For moving lights, simply select the desired channels, load or draw a curve, and set the timing delays between all fixtures. You can apply various effects such as rainbow, text scrolling, and animated pictures to your selected fixtures. Additionally, personalize your interface by customizing pages, buttons, and sliders to your liking. By connecting a MIDI control surface, you can operate everything with color control from the MIDI buttons. To craft your show, drag and drop light, audio, and video files at precise moments. Enhance your stage design utilizing our collection of 3D objects, arrange your fixtures, and preview your light show through our 3D rendering feature, which adds another layer of interactivity to your production experience. This comprehensive system makes it easy to create captivating performances that leave a lasting impression.

Explore the innovative features of ChalmLite 6.0, which includes stunning 3D realistic renders, support for multiple languages, and enhanced CAD layer management. This version boasts an intuitive, user-friendly interface based on Windows, making it easier than ever for users to craft both simple and intricate lighting designs. Experience your lighting concepts in lifelike 3D visualizations, and take advantage of a robust collection of quick estimators tailored for your projects, with the option to download results in convenient single-page reports. Additionally, the upgraded luminaire selection tools cater specifically to hazardous environments, and the reports now feature direct links to online product resources for effortless access to additional information. Don't miss out on the chance to elevate your lighting design capabilities with ChalmLite 6.0!

OptiWin 3D Pro is a proprietary lighting calculation software that we provide at no cost to our clients and collaborators. This application enables users to perform detailed lighting assessments for intricate and extensive projects. Accurate lighting calculations are crucial in maritime as well as oil and gas industries to meet various standards and lux level requirements. Additionally, these calculations facilitate the identification and implementation of corrective actions during the initial phases of a project. Users receive comprehensive reports detailing the results of OptiWin 3D Pro's calculations. The program also allows for quick and straightforward lighting assessments using CAD drawings, significantly enhancing project efficiency. By streamlining the calculation process, it helps ensure that lighting design complies with regulatory demands and industry best practices.

Transform your lighting design process with the Cooper Lighting Solutions augmented reality application, which allows you to seamlessly visualize lighting fixtures in any location or scenario. This innovative AR tool empowers you to explore our top-selling products, assisting you in selecting the ideal luminaires for your project. You can personalize your journey by modifying aspects like orientation, color, and shape to fit your vision. Experience a comprehensive 360-degree view of the fixtures from any perspective, and instantly capture a screenshot that includes detailed product information. In today’s educational environments, it's essential to create healthy spaces that foster learning, boost student productivity, and enhance overall student satisfaction. Effective lighting and control systems not only meet these requirements but also deliver considerable energy efficiency and cost reductions, making them a smart choice for modern campuses.

Radiance is designed to assist lighting designers and architects in forecasting the illumination levels and visual characteristics of a space before it is built. This software package comprises tools for modeling and converting scene geometry, luminaire specifications, and material attributes, all essential for the simulation process. Utilizing ray tracing techniques, the lighting simulation calculates radiance values—representing the amount of light that travels through a specific point in a designated direction—and typically presents these values in a high-quality photographic image format. Users can analyze, view, and modify the resulting images within the software, as well as export them to various widely-used image file formats, thus enabling the creation of printed outputs. Of particular importance to users is the primary component of the Radiance package: the lighting simulation engine, which not only determines light levels but also generates detailed images, allowing for enhanced visualization and assessment of lighting designs. Furthermore, this capability aids in refining the design process by offering insights into potential adjustments before actual construction begins.

DIALux stands out as the premier software for lighting design, serving as an essential marketing tool for luminaire manufacturers. This software is available free of cost and supports 25 different languages. With over 750,000 professionals globally, including engineers, electricians, and lighting designers, DIALux enables users to plan, calculate, and visualize lighting solutions for both indoor and outdoor spaces, utilizing actual products from more than 190 distinguished luminaire manufacturers. Whether designing for entire buildings, specific rooms, parking lots, or street and emergency lighting, DIALux allows for the creation of distinctive atmospheres using real products from its members. By becoming a DIALux member, businesses can significantly enhance their brand visibility, broaden their audience, and attract high-quality leads while engaging potential customers throughout the digital planning stages. Additionally, members can take advantage of exclusive benefits that come with the DIALux membership. Join now to redefine your lighting projects and elevate your design capabilities.

Incorporate dynamic lighting, media, and movement into your visual presentations. You'll be immediately captivated by the exceptional color fidelity and impressive performance of our rendering engine! With an extensive collection of lighting equipment, trusses, LED displays, and video projectors at your disposal, you can effortlessly transform your concepts into reality. After finalizing your design, you have the option to render it into high-quality images and videos. Additionally, you can create unique, stand-alone presentations using Capture that provide full interactivity with your design. Our rendering engine utilizes DirectX and Metalnative technologies, along with a comprehensive ACEScg color pipeline, to guarantee that the rendering process and colors are as accurate as feasible. Enhance your interaction with your lighting console, including features like DMX talkback for focusing fixtures, selecting fixtures for programming, and exchanging patches for efficient setup. This comprehensive approach ensures that your visualizations not only look stunning but also function seamlessly in real-world applications.

This application is designed for the planning of street lighting and illumination in public spaces, serving as a mobile solution for designers and lighting professionals. It assists purchasers of lighting equipment in selecting appropriate fixtures by allowing users to input the specifications of the area or roadway to be illuminated. Users can choose different fixtures and installation methods tailored to their needs. After completing the calculations, a detailed visual 3D representation of the scene will be generated, showcasing the distribution of light. Additionally, users have the option to save the lighting calculation results and scene parameters in a comprehensive report. Furthermore, the inclusion of sample projects crafted by experienced lighting technicians offers users the opportunity to not only explore the software's capabilities but also to create their own unique lighting designs inspired by these examples. This blend of functionality and inspiration makes the tool invaluable for both novice and seasoned lighting designers alike.