Channel Letter Software
The Fastest Channel Letter Software for Sign Makers
Import an SVG, generate production ready 3D channel letters and export STL or DXF in seconds. Built for sign shops, not for CAD engineers.
Why Sign Shops Use Letrix
Traditional channel letter production means hours in CAD, manual cleanup of SVG paths and constant back and forth between design and fabrication. Letrix collapses that workflow into a browser tool that any sign maker can use on the same day.
Faster turnaround
Quote, design and export a full set of letters before a client finishes their coffee.
No CAD overhead
Skip Fusion 360, Inventor and SolidWorks licenses. Letrix runs in any browser.
Ready for fabrication
Every export is checked, manifold and dimensionally accurate.
Import SVG, Generate 3D Letters, Export STL
Three steps from a flat vector to a production file. No mesh repair, no manual extrusion, no broken normals.
- 1
Import SVG
Drag and drop your logo or text outline. Letrix traces and repairs the geometry automatically.
- 2
Generate 3D Letters
Set depth, returns, bevels and acrylic rebate in real time with live 3D preview.
- 3
Export STL or DXF
Download a manifold STL for 3D printing or a clean DXF for CNC and channel benders.
Features
Everything a modern sign shop needs in a single channel letter software.
SVG Import
Drop any SVG logo or text outline and Letrix traces it cleanly into 3D geometry.
Automatic Extrusion
Set depth, returns and bevels in one slider, no CAD knobs to learn.
Acrylic Rebate
Built-in rebate for translucent acrylic faces, ready for backlit signs.
Backlit Letters
Hollow returns and controlled front-face thickness for even LED diffusion.
STL Export
Manifold, watertight STLs ready for any FDM or resin printer.
DXF Export
2D outlines for channel benders, CNC routers and laser cutters.
Letrix vs Manual CAD Modeling
See how a dedicated channel letter software compares to a general purpose CAD workflow.
| Capability | Letrix 3D | Manual CAD |
|---|---|---|
| Time per letter | Under 60 seconds | 30 to 90 minutes |
| Learning curve | Minutes | Weeks to months |
| SVG import | One click, auto repair | Manual cleanup required |
| Manifold STL | Guaranteed | Depends on operator |
| Acrylic rebate preset | Built in | Manual modeling |
| Backlit letter geometry | Built in | Manual modeling |
| DXF for benders / CNC | Included | Separate export workflow |
| Cost | From free | Hundreds per seat |
Frequently Asked Questions
What is channel letter software?
Channel letter software converts text or logos into the 3D geometry needed to fabricate dimensional letters for storefront signs, including extrusion depth, returns, acrylic rebates and mounting features.
Can I import my own SVG logos into Letrix 3D?
Yes. Drop any SVG into Letrix 3D and the cloud engine traces the paths, cleans overlaps and generates a watertight 3D letter ready for STL or DXF export.
Does Letrix 3D support backlit and front-lit channel letters?
Yes. You can configure hollow returns, acrylic face rebates and front-face thickness so the letter is ready for LED modules and translucent faces.
Which file formats can I export?
Letrix 3D exports manifold STL files for any 3D printer and DXF outlines for CNC routers, laser cutters and channel benders.
Do I need CAD experience to use Letrix 3D?
No. Letrix 3D was built specifically for sign makers. The full workflow is import, configure, export, with no Fusion 360 or Blender knowledge required.
Is there a free trial?
Yes, you can start designing channel letters for free, no credit card required. Paid plans unlock higher export volumes and commercial usage.
Try the best channel letter software, free
From SVG to STL in seconds. No credit card required.
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