Show HN: Programmable timer web app (for gym workouts or stretching sessions)

1 sources1 storiesFirst seen 8/12/2026Score20Mixed Progress

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jotaen

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My main use-case is gym routines that consist of repeatable sequences, e.g.

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where you are holding certain positions for a set time (rinse and repeat).

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The app counts down the program, beeps, and reads the activities out loud.Two things (I suppose) are special about it:- The timers are "programmable", so you can freely express your own routines and procedures in a declarative notation.- The app is all static (no backend): the entire program is encoded in the URL and can be bookmarked or shared/transferred via QR-code.You can check it out at https://timer.jotaen.net, optionally with a demo program pre-loaded: https://timer.jotaen.net/#demo.Source code is at https://github.com/jotaen/timer.

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