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Best RELUX Alternatives ranked by AI · updated Aug 2026

RELUX provides desktop software for architectural lighting design, daylight studies, and photometric calculations. It is aimed at lighting professionals, electrical engineers, and manufacturers, with 3D project modeling, product data integration, and calculation reports.

Developer: Relux Informatik AG Price: Free; paid modules available 🎯 relux.com
🎮 Simulation architectural design lighting design lighting analysis photometric analysis

Top 6 RELUX alternatives

1 AGI 32 logo

AGI 32

Lighting Analysts, Inc.

AGi32 is professional lighting design and photometric analysis software for architects, engineers, lighting designers, and facility planners. It supports detailed electric-lighting calculations,...

Pros

  • Detailed photometric calculations for interior, exterior, roadway, and sports-lighting projects
  • Strong support for advanced luminaires, reflections, grids, and compliance reports
  • More flexible analysis workflows than many BIM-focused lighting tools

Cons

  • Higher cost and steeper learning curve than free tools such as DIALux
  • Windows-focused desktop workflow with limited cross-platform flexibility
  • Less integrated with mainstream BIM authoring than Revit-based alternatives

Paid, contact vendor

Alternatives to AGI 32 → Visit site
2

DIALux evo

DIAL GmbH

DIALux evo is lighting design and calculation software for architects, engineers, lighting designers, and manufacturers. It handles indoor, outdoor, street, and daylight...

Pros

  • Free alternative with broad coverage of indoor, outdoor, street, and daylight projects
  • Large ecosystem of manufacturer photometric data
  • More approachable 3D workflow than AGi32 for many architectural projects

Cons

  • Less granular control for some specialized analysis workflows than AGi32
  • Windows-only desktop software
  • Some advanced manufacturer features and data depend on third-party plugins

Free

Alternatives to DIALux evo → Visit site
3

Visual Lighting

Visual-3D, LLC

Visual Lighting is desktop lighting-design software for electrical engineers, architects, lighting designers, and contractors. It combines CAD-based project modeling, photometric calculations, rendering,...

Pros

  • Combines lighting calculations with a familiar CAD-oriented workflow
  • Useful for electrical-engineering documentation and code compliance
  • Supports indoor, outdoor, roadway, and daylight-related project types

Cons

  • Less widely adopted internationally than DIALux or AGi32
  • Windows-only and oriented toward traditional desktop workflows
  • Visual presentation capabilities are less polished than dedicated rendering tools

Paid, contact vendor

Alternatives to Visual Lighting → Visit site
4

ElumTools

Lighting Analysts, Inc.

ElumTools is a lighting-analysis plugin for Autodesk Revit that performs photometric calculations and illuminance visualization inside BIM models. It is designed for...

Pros

  • Keeps lighting analysis within the Revit BIM environment
  • Reduces geometry rework compared with exporting models to standalone tools
  • Supports photometric calculations and visualizations for coordinated building projects

Cons

  • Requires Autodesk Revit, increasing total cost and system complexity
  • Less suitable for standalone lighting studies or non-Revit projects
  • Revit performance and model quality strongly affect the analysis workflow

Paid, contact vendor

Alternatives to ElumTools → Visit site
5

LightStanza

LightStanza

LightStanza is a browser-based daylight and electric-lighting analysis platform for architects, engineers, and building-design teams. It focuses on rapid studies, interactive visualizations,...

Pros

  • Cloud-based workflow is easier to share than desktop-only applications
  • Fast daylight studies and visual feedback during early design
  • Supports collaboration without requiring every reviewer to install specialist software

Cons

  • Less comprehensive for detailed photometric production work than AGi32
  • Cloud workflows can impose model, upload, or account constraints
  • May offer less control over specialized luminaire and calculation settings

Paid, contact vendor

Alternatives to LightStanza → Visit site
6

Radiance

Lawrence Berkeley National Laboratory

Radiance is an open-source physically based rendering and lighting-simulation system used by researchers, engineers, and advanced building-design practitioners. It excels at high-accuracy...

Pros

  • Free and open source with a strong reputation for physically based daylight simulation
  • Highly configurable for research, custom metrics, and automated workflows
  • Can achieve more advanced daylight-analysis control than many commercial tools

Cons

  • Much steeper technical learning curve than AGi32 or DIALux
  • Requires additional interfaces or scripts for a polished production workflow
  • Less turnkey for electric-lighting layouts, catalogs, and client reports

Free, open source

Alternatives to Radiance → Visit site

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