IntervalTimer
It works as a PWA, supports offline usage, and has a picture-in-picture mode (only on compatible browsers like Chrome-based ones). Feedback is welcome.
IntervalTimer launched on November 18, 2025 with 5 votes, #4,178 of 9,796 launches that month.
What it does
I’m a front-end developer specializing in React and Next.js. I love creating small apps that help others. IntervalTimer.fun is a minimal online interval timer for HIIT workouts. It works as a PWA, supports offline usage, and has a picture-in-picture mode (only on compatible browsers like Chrome-based ones). No login, no tracking—just set your intervals and start your session. Feedback is welcome!
A free, simple, and customizable interval timer for your workouts, HIIT, Tabata, and more. no subscriptions, works offline.
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MyTimers.app offline-first PWA with no build step and zero dependenciesNov 2025 · mytimers.app · ▲48Hello, For quite some time, I've been unsatisfied with the built-in timers on both Android and iOS; especially for workouts, when I needed to set up a configurable number of series with rest periods in between. That's when I started thinking about building something myself. It was just a timer and I said to myself "how hard could it be?", I had no idea. The first iteration of the project worked "just fine", but the UI was an eyesore (even more than it is now), and the UX was quite awful as well. As you can probably guess, I'm not versed in design or front-end development. In fact, my last…
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Over the last couple of months, I’ve been building a timer web app for myself that I use for workout and stretching sessions. My main use-case is gym routines that consist of repeatable sequences, e.g. where you are holding certain positions for a set time (rinse and repeat). 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…
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