Can I give each rep a different length?

Yes. A sequence is a list of steps and every step has its own duration, so 30 seconds of work with 10 seconds of rest, then 20 with 5, then 45 with 20 is one sequence rather than three timers. The sequence repeats from the top until the total duration runs out or you stop it.

Can I use Repyo as a HIIT or Tabata timer?

Yes. Tabata is 20 seconds of work and 10 seconds of rest for eight rounds, which is one two-step sequence with a total duration of four minutes. Any other HIIT ratio is the same idea with different numbers, and nothing about the sequence is fixed to a preset.

Does Repyo make a sound between reps and breaks?

Yes. A bright two-note cue marks the start of a rep, a lower single note marks the start of a break, and three quiet ticks count down the last three seconds of every step so the switch never arrives unannounced. The tones are generated by the browser rather than loaded as files, so there is nothing to download and nothing to wait for. One toggle in the builder turns all of it off.

Will the sound work with my music playing?

The cues are short tones in a register that carries over most music, and they play over whatever else is running rather than pausing it. On an iPhone the physical silent switch mutes web audio, so leave it off if you rely on the cues.

Does the screen stay on during a workout?

Repyo asks the browser to hold the screen awake while a session is running and releases it when you stop. This works in Chrome, Edge and Safari 16.4 or later. Where the browser does not support it the timer still runs correctly, but the phone may dim on its usual schedule.

Can I save more than one workout?

Yes. Give each sequence a name and it is saved separately. The name beside the logo on the timer screen opens the list of saved workouts, and picking one loads it ready to start rather than starting it, so you can switch between two or three routines without rebuilding them.

Can the timer run without a set duration?

Yes. The total duration is optional. Leave it empty and the sequence loops from the top indefinitely, until you press stop.

Do I need an account, and where is my data stored?

There is no account and no sign-in. Your sequences and preferences are stored locally on the device you used to create them. Repyo has no backend, sends nothing anywhere, and includes no analytics or tracking, which also means your workouts do not follow you to another device.

Yes, entirely. There is no paid tier, no advertising and no limit on how many sequences or steps you can create.

Does Repyo work on a phone?

Yes. The layout is built for phones first, in both portrait and landscape, and adapts to tablets and desktops. Add it to your home screen and it opens without browser chrome.

Does Repyo have a dark mode?

It has both a dark and a light theme, and follows your system setting until you choose one yourself. You can also pick the accent colour used by the display and controls, from a set of presets or any colour you like.

Repyo – Free Interval Timer for HIIT, Tabata & Workout Reps

Repyo – a free interval timer for HIIT, Tabata and workout reps Repyo needs JavaScript to run the timer. Here is what it does. Repyo is a free, browser-based interval timer. You build a sequence of reps and breaks, each with its own duration, and Repyo counts them down on a flip-clock display with a sound cue every time it switches between work and rest. It works as a HIIT timer, Tabata timer, circuit training timer, EMOM timer, boxing round timer, plank timer or stretching timer, because none of those are built in as presets — they are just different numbers in the same builder. Features

Sequences of any length; every step is a rep or a break with its own duration

Durations in seconds, minutes or hours

An optional total duration, or loop until you stop it

Several saved workouts, switched from the name beside the logo

A flip-clock display, after mechanical split-flap clocks

A distinct cue entering a rep and entering a break

A three-second count-in before every step ends

Vibration alongside the sound, where the browser supports it

Holds the screen awake while a session runs

Dark and light theme, following your system by default

Accent colour presets, or any colour you choose

No account, no ads, no tracking — everything stays on your device

How to use it

Open the builder and add a step for each rep and each break

Set a total duration, or leave it empty to loop until you stop

Save, then start — the clock counts the current step down and cues the next

What is an interval timer? An interval timer alternates work with rest and tells you when to switch, so you can stop watching the clock. It is the timer behind HIIT, Tabata, circuits, EMOM, boxing rounds and timed holds. Tabata, for instance, is 20 seconds of work and 10 of rest, eight times — in Repyo that is a two-step sequence with a four-minute total duration.