Online Interval Timer — Set up your workout

Set work, rest, rounds, and go. It's that simple. Desktop native, keyboard friendly, workout in the link. No account, no spying, no nonsense. Just you, increasingly out of breath, wondering why you started.

:
min [Q]
sec [W]
:
min [E]
sec [R]
[T]
[SPACE]

Templates

WORK
00:00
Round 1 of 8
[Space]
[X]
[→]
[Esc]
[Space]
[5]
[6]
[Esc]

F*CKING A!

[N]
[Space]
[S]
[P]

F*FIT - Fucking Fast Interval Timer

A keyboard-native, production-ready interval timer web app for high-intensity workouts. Featuring preset templates like Tabata, HIIT, EMOM, Boxing rounds, and Pomodoro. Built with vanilla JavaScript, responsive CSS, and no external dependencies.

Preset workouts include 20/10 Tabata, 30/30 HIIT, 40/20 HIIT, 60s EMOM, 3-minute boxing rounds, and 25-minute Pomodoro sessions.

F*FIT

Beta

It's an interval timer. You set work time, rest time, and rounds. You press start. It goes. That's the whole product.

No account. No ads. No spying. No "pro tier" where the pro tier is just the thing working.

Workouts live in the URL. Every setting is encoded in the link. Bookmark it, share it, text it to someone who won't use it.

Keyboard-native if that's your thing. Mouse-friendly if it isn't. Finishes with a dumb motivational quote. Almost all in one HTML file.

Free. Fast. That's it. Go train.

Share your workout