About TimerFlux
Last updated: August 2026
TimerFlux is a free, browser-based productivity tool that combines a countdown timer, lap stopwatch, and world clock in one clean interface. It was built for people who need to stay focused — whether that's through the Pomodoro Technique, timed workouts, meeting countdowns, or simply keeping track of time across different time zones.
No installation. No account required. No ads. Your timer presets are stored locally in your browser and are never sent anywhere.
What TimerFlux offers
- Countdown timer with named presets — set any duration in hours, minutes, and seconds
- Stopwatch with lap tracking — measure elapsed time and record splits
- World Clock — current local time in 85+ cities across all time zones
- Alarm sounds with adjustable volume and 'ring until stopped' mode
- Dark mode and light mode
- Available in English, Russian, Japanese, and Kyrgyz
Privacy
We collect minimal data. Anonymous usage statistics are gathered through Google Analytics to understand how many people use the site. No personal information is collected, sold, or shared. See our Privacy Policy for full details.
Frequently asked questions
Yes, completely free. There are no paid plans, no premium features, and no ads. TimerFlux is funded by the goodwill of people who find it useful and share it with others.
No. TimerFlux works entirely in your browser. Your timer presets are saved in localStorage — they stay on your device and are available every time you return, without signing in.
Yes. The countdown continues when you switch to another tab or application. When time is up, you will hear the alarm sound. You can also enable browser notifications in Settings to receive a visual alert.
The Pomodoro Technique uses 25-minute focused work sessions separated by 5-minute breaks. TimerFlux includes a built-in 25-minute Focus preset. Set it as your active timer, press Play, and work until the alarm. Then load the 5-minute Break preset for your rest period. After four sessions, take a longer 15–30 minute break.
Feedback & contact
Have a suggestion, found a bug, or want to request a feature? We'd love to hear from you.
Email us at: info@timerflux.com