Elapsed-Time Timing
The display is derived from timestamps, so a throttled callback does not quietly make the timer run slow.
Reliable in background tabs
A timer should keep honest time. Nothing more.
Start a countdown, Pomodoro, stopwatch, or interval timer in one click. FocusHub follows elapsed time when you switch tabs, keeps personal labels on your device, and leaves ads outside the running timer.
- No account
- Tested timing model
- Local session history
01 / The Toolkit
View every preset One clock for every kind of work.
02 / Ready-Made Timers
Browse every timer Start with the exact time you need.
5-Minute Break Timer
A quick reset between focus blocks.
25-Minute Pomodoro
The classic 25/5 focus rhythm.
Visual Timer
See the remaining time shrink as you work.
50/10 Study Timer
Sustained study with a real break.
Aesthetic Study Timer
Three calm visual focus rooms.
Classroom Timer
A projection-ready timer for teachers.
Meeting Timer
A shared finish line without a tiny clock.
Tabata Timer
Eight automatic 20/10 exercise rounds.
03 / Evidence, Not ClaimsTrust the clock.
Trust the clock.
Check the method.
A background tab can delay visual updates. FocusHub calculates from elapsed wall-clock time instead of assuming every browser callback arrived on schedule.
Read the timer accuracy methodologyRecovery Checks
Automated tests cover delayed callbacks, pausing, expiry, duration changes, and restoring a saved countdown.
Honest Limits
Browsers and operating systems can still delay sound or suspend a tab. The methodology says where those limits begin.
Give the block a finish line.
Name the Evidence
“Draft the opening paragraph” gives the session a clearer end than “work on the essay.”
Choose by Task
Use a short block when starting is hard and a longer one when interruption would destroy useful context.
Review the Result
When the alarm sounds, compare the planned outcome with what exists. Adjust the next block, not your self-worth.
05 / Field Notes
Browse All Guides Use time with intention.
01 · 12 min read
Pomodoro Technique: How It Works + Timetable
Learn the 25/5 cycle step by step, follow a four-session timetable, handle interruptions, and adapt the method without losing its purpose.
Read Guide 02 · 8 min readPomodoro Not Working? 7 Practical Fixes
Diagnose why a 25/5 rhythm feels distracting, rigid, or hard to maintain, then test one practical adjustment.
Read Guide 03 · 7 min readHow to Study With Timers
Pair timed study blocks with active recall, spaced practice, and a simple review of what you actually learned.
Read Guide06 / The Fine Print
Useful answers, no mystery.
Is FocusHub free?
Yes. Every timer is free with no account, trial, or usage limit.
Do I need an account or app?
No. The timers work in a browser tab. You can optionally install the site from your browser for easier offline access.
Where is my session data stored?
Session information is stored locally in your browser. FocusHub does not transmit your timer history to an account.