RailModeller Express is the free edition of our app portfolio for planning model railroad and slot car layouts on macOS.
The app is available exclusively on the Mac App Store.

100 track programs. TRAX supports over a hundred track programs from various manufacturers, including Marklin, Fleischmann, Peco and Tillig. Whether it is Z, N, TT or H0, any scale is possible.

Marklin Track Planning Software Mac Os

With SCARM you can easily create the layout of your dreams. Just download the setup package, install it and start editing your first track plan. In SCARM you can use unlimited number. of tracks and objects from more than 210 libraries and instantly see your design in 3D preview with a single click.
I know it's not quite what you're looking for, but I built my track plan in Trainz for the iPad to 'operate' it before I built a piece of bench work. It allowed me to check a few things and make a few changes. It wasn't exact, but it was close.

The Express Edition offers many of the features supported by RailModeller Pro with some limits regarding the size of layouts you can build.
This way you can try out our macOS model train track planning app right away for free.

Marklin Track Planning Software Mac 2019

Here's how the Pro and Express editions compare:

Express Edition	Pro Edition
Number of Elements	Up to 50 tracks	Unlimited
Libraries included	260+ (Scale-specific & universal TruScale libraries)	260+ (Scale-specific & universal TruScale libraries)
Model Scales per Layout	1	Unlimited
Number of Layers	1 (In-App Purchase: 5)	Up to 99
Image Import	Not available	Up to 10 images (PDF, JPEG, PSD, ..)
Baseboards	Rectangular Baseboards	Templates for common shapes (L, U, ..) & custom baseboards
Stock	Not available	Integrated Stock Management
Community Layouts	Browse and open layouts	Browse, open and share layouts
Layout Dimension	Up to 500m (or yards) In original scale	Up to 10km or 6.2mi Scale of drawing canvas
JMRI Export	Not available	Export layouts for JMRI's PanelPro
Required macOS Version	macOS 10.12 or newer	macOS 10.12 or newer

RailModeller Express comes bundled with all the track libraries included in our Pro Edition enabling you to try out for yourself whether RailModeller Pro is a good fit for you and if it suits your needs - or whether you're perfectly happy with its little brother.