# GLDF Viewer

> GLDF Viewer (iPhone/iPad app by Holger Trahe.)

- Source: https://appshunter.io/ios/app/gldf-viewer/id6755966812 (this page in markdown: same URL + `.md`)
- Developer: [Holger Trahe](https://appshunter.io/developer/1687929013)
- Category: Developer Tools, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 16.0 · 10 MB
- Languages: American English
- Released: 2025-12-03
- Data updated: 2026-08-10
- User reviews in markdown: https://appshunter.io/ios/app/gldf-viewer/id6755966812/reviews.md

## What is GLDF Viewer?

Explore GLDF lighting data files on the go. View product info, light sources, photometry data, and 3D
  geometries from the Global Lighting Data Format standard.

  Description (4000 characters max):
  GLDF Viewer is the essential tool for lighting professionals, designers, and engineers who work with the
   Global Lighting Data Format (GLDF).

  FEATURES:

  • Open and explore GLDF files directly on your iPhone or iPad
  • View manufacturer and product information
  • Browse embedded files including photometric data (EULUMDAT/IES) and 3D models
  • Inspect light source specifications
  • Explore product variants
  • View raw XML/JSON data with syntax formatting
  • Drag and drop GLDF files to open instantly

  GLDF is the open standard for exchanging luminaire data across lighting design software. With GLDF
  Viewer, you can quickly inspect lighting product data anywhere.

  Perfect for:
  - Lighting designers reviewing product specifications
  - Engineers validating GLDF exports
  - Manufacturers checking their product data
  - Anyone working with digital lighting information


## Version history (last 1 release)

### 1.0 — 2025-12-04

No release notes.

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## More apps by Holger Trahe

- [RoomPlanSimple](https://appshunter.io/ios/app/roomplansimple/id6449182214)
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All apps by Holger Trahe: https://appshunter.io/developer/1687929013

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-10.*