A free Tabata timer
Twenty seconds on, ten seconds off, eight rounds. Four minutes in total, and they are a long four minutes if you do them properly.
Space bar starts and pauses. The screen stays awake while it runs.
Where the protocol comes from
The format is named after Izumi Tabata, whose research group published a study in 1996 comparing a short high-intensity interval protocol against longer moderate-intensity training in trained athletes. The interval arm used twenty seconds of very hard work and ten seconds of rest, repeated eight times.
Two things are worth knowing. The original work was done on stationary bikes with well-trained subjects at an intensity far beyond what most people mean by 'Tabata' in a gym class. And four minutes was the interval portion of a session, not the entire workout.
Doing it honestly
The protocol only means anything if the twenty seconds are genuinely near-maximal. Eight rounds of moderate effort is a fine warm-up but it is not what the study measured, and it will not produce what the study found.
A practical test: if your eighth round looks much like your first, you went too easy. Done properly, the last two rounds are a fight.
Warm up first
Four minutes of all-out work from cold is a good way to hurt yourself. Give it five to ten minutes of easy movement first, and pick something you can do at high speed without technique falling apart — a bike, an assault bike, or a simple bodyweight movement rather than anything heavy or complex.
Questions
What is the Tabata protocol exactly?
Twenty seconds of near-maximal work followed by ten seconds of rest, repeated eight times, for four minutes in total. It comes from a 1996 study by Izumi Tabata's research group comparing short high-intensity intervals with longer moderate-intensity training.
Is four minutes really a whole workout?
The four minutes is the interval portion, not the session. In the original research it followed a proper warm-up and sat within a structured training programme. Treating four minutes as your entire week of exercise is a misreading of it.
What exercises work for Tabata?
Anything you can perform at very high intensity without your technique breaking down as you tire. Cycling, rowing, and simple bodyweight movements suit it well. Heavy or highly technical lifts do not, because the last rounds are exactly when form fails.
Can beginners do Tabata?
The structure is simple but the intensity is not beginner-friendly, and near-maximal effort from an untrained starting point carries real risk. Building a base with steadier intervals first is the sensible order. If you have any heart or joint concerns, speak to a doctor before near-maximal work.
Is this Tabata timer free?
Yes, and there is no account or install. It is preset to the real 20/10 for eight rounds, and you can change any of the three numbers if you want a variation.
STATIONS turns these intervals into a full 45-minute session — nine stations a half, two halves, an animated demonstration of every exercise, and your own SoundCloud or Mixcloud mix running with the clock. You can also start a video call and train with a friend on the other end. Free, no account.
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