# Go Intervals

> Free browser timers: stopwatch, countdown, interval/HIIT, Tabata, EMOM and Pomodoro. No login, no ads, no server. Timing is timestamp-based so it does not drift when a tab is throttled or a phone sleeps. Keeps the screen on, beeps with generated tones, works offline after the first visit.

Site: https://gointervals.com
Source: https://github.com/nimi0112/gointervals
License: MIT, open source. Content may be quoted with attribution. Issues and contributions: https://github.com/nimi0112/gointervals/issues

## Timers

- [Home / interval timer](https://gointervals.com/): the interval timer with presets, including "beep every 10 minutes for 30 minutes".
- [Interval timer](https://gointervals.com/interval): work, rest, rounds, sets, rest between sets, saved presets.
- [Countdown timer](https://gointervals.com/timer): presets 1 to 60 minutes plus custom.
- [Stopwatch](https://gointervals.com/stopwatch): laps with split and total.
- [Tabata timer](https://gointervals.com/tabata): 20/10 x 8, editable.
- [EMOM timer](https://gointervals.com/emom): every minute on the minute, configurable interval.
- [Pomodoro timer](https://gointervals.com/pomodoro): 25/5, long break every 4, session counter.
- [Meditation timer](https://gointervals.com/meditation): one soft bell every 10 minutes for 30 minutes by default, interval and length editable, no ticks, screen stays awake.

## Preset pages

- Countdowns: https://gointervals.com/timer/1-minute and https://gointervals.com/timer/{n}-minutes for n in 2,3,4,5,6,7,8,9,10,12,15,20,25,30,40,45,50,60,90 and https://gointervals.com/timer/{n}-seconds for n in 10,15,20,30,45,60,90.
- Tabata variants: https://gointervals.com/tabata/20-10-8, /tabata/30-15-8, /tabata/40-20-8, /tabata/45-15-10, /tabata/60-30-6
- Also: /timer/{n}-minutes for n in 11,13,14,16,17,18,22,35,55, /timer/{n}-hours for n in 2,3,4,5,8, /timer/{n}-seconds for n in 5,7,8,25,40,75.
- By purpose: https://gointervals.com/timer/kitchen-timer, /timer/classroom-timer, /timer/plank-timer, /timer/sauna-timer, /timer/nap-timer, /timer/study-timer, /timer/rest-timer, /timer/loud-timer
- More Tabata: /tabata/20-10-4, /tabata/10-20-8, /tabata/30-10-8, /tabata/30-30-8, /tabata/45-15-8
- Workouts: https://gointervals.com/interval/7-minute-workout, /interval/boxing-rounds-3-1, /interval/running-intervals-1-1, /interval/sprint-30-90, /interval/kettlebell-emom-10
- Repeating beeps: https://gointervals.com/interval/beep-every-30-seconds, /interval/beep-every-minute, /interval/beep-every-2-minutes, /interval/beep-every-3-minutes, /interval/beep-every-5-minutes, /interval/beep-every-10-minutes, /interval/beep-every-15-minutes, /interval/beep-every-20-minutes, /interval/beep-every-30-minutes, /interval/beep-every-hour
- Meditation lengths: https://gointervals.com/meditation/5-minutes, /meditation/10-minutes, /meditation/20-minutes, /meditation/30-minutes, /meditation/45-minutes, /meditation/1-hour
- Pomodoro variants: https://gointervals.com/pomodoro/50-10, /pomodoro/52-17, /pomodoro/90-20, /pomodoro/15-5

## Blog

- [Blog index](https://gointervals.com/blog) and [RSS](https://gointervals.com/rss.xml)
- What is a Tabata timer: https://gointervals.com/blog/what-is-a-tabata-timer
- HIIT interval timer for beginners: https://gointervals.com/blog/hiit-interval-timer-beginners
- EMOM workouts explained: https://gointervals.com/blog/emom-workouts-explained
- Pomodoro technique 25/5: https://gointervals.com/blog/pomodoro-technique-25-5
- Stopwatch for running splits: https://gointervals.com/blog/stopwatch-running-splits-lap-times
- Keep your phone screen on: https://gointervals.com/blog/keep-phone-screen-on-workout-timer
- Online timer that works offline: https://gointervals.com/blog/free-online-timer-that-works-offline
- Boxing round timer: https://gointervals.com/blog/boxing-round-timer-3-minute-rounds
- 7 minute workout timer: https://gointervals.com/blog/7-minute-workout-timer
- Study timer vs Pomodoro: https://gointervals.com/blog/study-timer-vs-pomodoro
- How long is a Tabata workout: https://gointervals.com/blog/how-long-is-a-tabata-workout
- How many rounds in a boxing match: https://gointervals.com/blog/how-many-rounds-in-a-boxing-match
- Timer that beeps every 10 minutes: https://gointervals.com/blog/timer-that-beeps-every-10-minutes
- Interval timer for running: https://gointervals.com/blog/interval-timer-for-running
- Best Pomodoro length: https://gointervals.com/blog/best-pomodoro-length
- How long to hold a plank: https://gointervals.com/blog/plank-timer-how-long-to-hold
- Meditation timer with interval bells: https://gointervals.com/blog/meditation-timer-with-interval-bells
- How long to meditate: https://gointervals.com/blog/how-long-to-meditate

## Other

- [About and data](https://gointervals.com/about): what is stored in the browser and how to clear it.
- Keyboard: Space start/pause, R reset, L lap, Esc stop.