DIALux
DIALux is Windows software for lighting design, with core lighting design functions on its free plan.
What DIALux is
DIALux is Windows software for lighting design, with core lighting design functions on its free plan. Free users can access luminaires from DIALux member manufacturers. The Unlock Non-Members plan adds luminaires from manufacturers who are not DIALux Members and costs €5.99 a month. Pro adds that access plus IFC import and export, project-data export to office formats, and custom report layouts. Pro is listed at €19.99 a month in Region 2 and €29.99 a month in Region 1; monthly pricing depends on region, and annual subscriptions are discounted. DIALux also lists rendering tools and construction-document capabilities, and supports IFC, but is not a BIM authoring tool. A 30-day trial is listed. The software is offered for Windows, and its headquarters are in Lüdenscheid, Germany. Its platform limitation matters for users choosing a lighting design tool for a different operating system.
Good
- Core lighting design functions are free.
- Free plan includes member-manufacturer luminaires.
- Pro includes IFC import and export.
- Rendering and construction-document capabilities.
Watch out
- Available on Windows only.
- Unlock Non-Members costs €5.99 a month.
- Pro pricing depends on region.
- It is not a BIM authoring tool.
Who it suits
DIALux suits lighting designers working on Windows who need core design functions or access to manufacturer luminaires. Users needing non-member luminaires, IFC exchange, or office-format project exports can review the paid options.
Verdict
DIALux offers core lighting design at no cost, with paid tiers for broader luminaire access and export options. Check regional Pro pricing and Windows compatibility before choosing it.
Plans and prices
From DIALux's own pricing page, checked 25 Sep 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | Core lighting design functions · Access to member-manufacturer luminaires |
| Unlock Non-Members | €5.99 a month | Use luminaires from manufacturers who are not DIALux Members · Monthly price depends on region; annual subscription discounted. |
| Pro | €19.99 a month | Import and export IFC · Export project data to office formats · Custom report layout · Use non-member luminaires · Monthly price depends on region; annual subscription discounted. €19.99 in Region 2 and €29.99 in Region 1. |
| Unlock Non-Members | €65.99 a year | Use luminaires from manufacturers who are not DIALux Members · Annual price depends on region. |
| Pro | €219.99 a year | Import and export IFC · Export project data to office formats · Custom report layout · Use non-member luminaires · Annual price depends on region; €219.99 in Region 2 and €329.99 in Region 1 for 1–4 subscriptions. |
The facts
Each one read from DIALux's own pages, with the date it was checked.
The company
- Headquarters
- Lüdenscheid, Germanychecked 4 Oct 2026
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