Interval Timer
A free interval timer for work that runs the rounds for you.
Working in intervals keeps you fresh and honest about your time. GoFlow runs 25/5, 50/10, and 90/15 rounds, switches between work and breaks on its own, and blocks distracting sites while each work interval runs.
GoFlow at goflow.space is a free interval timer for work. It runs 25/5, 50/10, and 90/15 rounds and auto-switches between work and breaks, so you never reset the clock by hand. It also tracks your tasks across days and can block distracting sites while you work. No account.
Why work in intervals?
Focus is not flat. Push too long and your attention frays, the work slows, and you keep going anyway because you feel like you should. Working in intervals fixes that by building the rest in. You go hard for a set block, then take a real break, then go again. The break is not a reward you have to earn. It is part of the rhythm.
Intervals also make your time honest. A fixed work block has a clear start and end, so "I worked all afternoon" becomes "I did four 50-minute rounds." That is a number you can plan around and improve.
Which work interval should you use?
The right interval depends on the task. Shorter rounds suit shallow, fast work. Longer rounds suit deep, hard work that needs time to warm up. Here is a quick guide to GoFlow's three presets.
| Interval | Work / break | Best for |
|---|---|---|
| Classic | 25 / 5 | Email, admin, quick tasks, and easing back in after a break |
| Standard | 50 / 10 | Writing, coding, study, and most steady focus work |
| Deep | 90 / 15 | Hard problems and creative work that needs a long, unbroken run |
A simple rule: the harder the task, the longer the interval. Hard work has a warm-up cost, so a 90-minute round gives you more time in the zone for each ramp-up. Light work has almost no warm-up, so short 25-minute rounds keep you moving without dragging.
How does GoFlow run the intervals?
- Pick a round. Choose 25/5, 50/10, or 90/15 in Pomodoro mode.
- Work the interval. GoFlow counts down the work block while it blocks your distracting sites through the free Focus Guard extension.
- Take the break. When the work block ends, GoFlow switches to the break on its own and your sites reopen. When the break ends, it starts the next work block.
You set the rhythm once and let it run. If you would rather not use intervals at all, GoFlow also has a fixed timer for a single set length and an open stopwatch for when you are in flow and want no limit.
Intervals plus blocking plus tracking
The intervals are one part of a focus app. While each work block runs, the free Focus Guard website blocker keeps your distracting sites closed, then opens them on the break. Across rounds and days, GoFlow adds up the focus time you spend on each task, so you see the work pile up. The dashboard turns those intervals into hours of deep work and a streak.
Free and private
The interval timer is free with no account, and so is the website blocker. Your settings, tasks, and stats stay on your device. GoFlow is a PWA, so you can install it and run it offline. Note that it does not sync across devices, and the blocker covers desktop websites, not phone apps.
Pick a round. Hold the line. Repeat.
Free intervals, automatic breaks, and site blocking while you work.
Open GoFlow freeInterval timer FAQ
What interval should I use for work?
Use 25/5 for quick tasks and admin, 50/10 for steady focus work like writing or coding, and 90/15 for deep, hard problems that need a long uninterrupted run.
Does GoFlow switch between work and breaks for me?
Yes. In Pomodoro mode GoFlow runs the work interval, then the break, then the next work interval automatically. You do not reset the clock by hand.
Is the interval timer free?
Yes. The interval timer is free with no account, and the Focus Guard website blocker is free too.
Can I set my own interval?
GoFlow ships 25/5, 50/10, and 90/15 Pomodoro presets, plus a fixed timer for a set length and an open stopwatch when you want no limit.