Overview
Build swim workouts in plain text — save, share, print, or time yourself. No account required to start.
Plain-language intervals
Distance & equipment
Calories
Log your workouts
Building swims
Interval syntax & examples.
Open →Generator
Generate a workout or import an existing one.
Open →Calories
How the number is calculated.
Open →Durations
How planned workout time is calculated.
Open →Drill library
Technique drills by category.
Open →Printing
Get a clean printout on paper.
Open →Help & Feedback
Questions, bugs, and suggestions.
Open →