The Mill

Download v1.4.1

• Windows 64-bit zip, 3.2 MB
• macOS, Apple silicon tar.gz, 2.9 MB
• macOS, Intel tar.gz, 3.2 MB
• Linux, deb Debian or Ubuntu, 2.7 MB
• Linux, rpm Fedora or openSUSE, 3.1 MB

Released 2026-07-18. SHA-256 checksums · Release notes. The Mill is free and MIT licensed.

What it does

• Drills with random code groups, real callsigns from embedded datasets, or text files you supply.
• A contest simulator with realistic exchanges, including CQ WPX and DX-style contests.
• Farnsworth timing: set character speed and effective speed independently.
• Accuracy scored per session, character by character, so you can watch your copy improve.
• Works with the JAWS screen reader and is fully keyboard operable. Accessibility is a design requirement, not an afterthought.

The Mill opens in its own window using Google Chrome or Microsoft Edge, so one of the two must be installed.

Installing

Windows

Unzip the download and run mill-windows-amd64-v1.4.1.exe. There is no installer. Windows SmartScreen may warn the first time because the app is not code-signed: choose More info, then Run anyway.

macOS

Open the tar.gz and drag The Mill.app to Applications. The app is signed and notarized, so it opens like any other app.

Linux

Install the package for your distribution, for example sudo apt install ./mill-linux-amd64-v1.4.1.deb or sudo dnf install ./mill-linux-amd64-v1.4.1.rpm. Then run mill.

Donations

The Mill is free and always will be. People sometimes ask if they can donate: you never need to, but you can leave a tip on Ko-fi. If you would rather pay it forward, consider supporting the Long Island CW Club or the Handiham Program.