Design My Lights vs DIALux evo: Which Should You Use?
The verdict
Design My Lights and DIALux evo are both home & construction design tools, compared here side by side. Design My Lights is truly free (Free) and runs in any web browser with nothing to install; DIALux evo is free, with limits (Paid) and is a desktop install with no browser version. The biggest difference is cost: Design My Lights is truly free, while DIALux evo is free, with limits (from Paid).
Free tiers & pricing last verified Jun 23, 2026.
Pick Design My Lights if…
Truly freeHomeowners previewing holiday lights
Pick DIALux evo if…
Free, with limitsArchitectural and outdoor lighting engineers
Side by side
Design My Lights
Truly freeCompletely free with no account; upload a house photo, drag lights along the roofline and get a photorealistic nighttime preview.
DIALux evo
Free, with limitsFull professional lighting calc/visualization is free forever; only luminaires from non-member manufacturers and IFC/BIM and Office export require the paid DIALux Pro subscription.
Read the full reviews
Design My Lights
Completely free with no account; upload a house photo, drag lights along the roofline and get a photorealistic nighttime preview.
DIALux evo
Full professional lighting calc/visualization is free forever; only luminaires from non-member manufacturers and IFC/BIM and Office export require the paid DIALux Pro subscription.
Design My Lights vs DIALux evo: questions, answered
What is the main difference between Design My Lights and DIALux evo?
The biggest difference is cost: Design My Lights is truly free, while DIALux evo is free, with limits (from Paid).
Is Design My Lights or DIALux evo free?
Design My Lights is truly free and DIALux evo is free, with limits. Design My Lights: Completely free with no account; upload a house photo, drag lights along the roofline and get a photorealistic nighttime preview. DIALux evo: Full professional lighting calc/visualization is free forever; only luminaires from non-member manufacturers and IFC/BIM and Office export require the paid DIALux Pro subscription.