REFLEKTOR.1: free lighting plot drafting in the browser

REFLEKTOR.1 is a free web app for theatre lighting designers: draft a lighting plot in 2D and 3D, patch DMX, and export PDF, JPG, MVR and CSV. No account needed, and plots stay in your browser.

GM 100

Drag onto a view, or click one and then click where it goes.

No GDTF fixtures yet. Download .gdtf files from gdtf-share.com, then import them here.

Beam lines

Labels

Stage

Show stage outline

Width (m) Depth (m)

New item height (m) Focus plane (m) Show focus plane

DMX patch Start at Only unpatched

Universe 1 patched overlapping selected Click a patched address to select its fixture. With a fixture selected, click a free address to patch it there.

INSPECTOR

LAYERS & GROUPS

Layers

Colour fixtures by

Groups

Reference backgrounds

Both panels are floating. Drag a title bar back here to dock it.

HELP📖 User manual

Hover over anything

Point at a button, field, fixture or window and this box explains what it does.

Snap cm Snap to pipes Focus follows fixture Highlight selected Shadows —

Fixture report

REFLEKTOR.1

Light plot drafting in your browser · version 1.0

Draft lighting plots with fixtures, pipes, trusses and set pieces in top, front, side, left, isometric and 3D views; focus beams, frame profiles with knives, patch and colour fixtures, and print a vector plot on A4 or A3.

Reflektor: named, the old way, after the mirror inside the lamp. We kept the name and never looked back, and neither will your cues.

Credits

Idea, design and direction: Ivan Liik
Built with: Craft Anything and Claude (Anthropic)
3D: three.js (MIT licence)
PDF: jsPDF (MIT licence)
Filter colours: screen approximations of the Lee Filters and Rosco swatch books; the names are trademarks of their owners
File formats: MVR (My Virtual Rig) by the GDTF / MVR group

Your plots are saved only in this browser. Use Save to keep a file. Online, REFLEKTOR.1 counts visits and exports anonymously: no cookies, no names, no plot data. Privacy

Found a bug? Please send a report to info@reflektor1.com

Follow REFLEKTOR.1

GDTF Share librarygdtf-share.com ↗

Sign in with your free GDTF Share account to search the library and add fixtures straight into REFLEKTOR.1. No account yet? Make one on gdtf-share.com.

Email Password Remember on this computer (kept only in this browser)

The GDTF Share library works in the online app at reflektor1.com.

Opened from a file, you can still download .gdtf files from gdtf-share.com and add them with + Import GDTF….