Zoned

About

Zoned is a complimentary open-source application that creates personalized running plans and workouts based on your individual heart rate or pace zones. It requires no account, uses no backend, and has no paywall. All functions operate locally within your browser, including offline use. The app contains 256 structured workouts, nine training plans ranging from 5K to marathon distance, a real-world route generator, a race-day pacing simulator, and twelve calculators. You can export data to Garmin FIT, Strava, GPX, calendar, or PDF formats. Released under the MIT license, it can be self-hosted or you can contribute a session.