systrexDiagnose the Internet

Work timer

/tools/work-timer

work

25:00

session 1 of 4ends 00:00

display

The alarm plays when you change it. Background sound runs during work intervals only, and stops for breaks.

settings

History

0 sessions today

0m focused today

0 sessions this week

0m focused this week

startedfocusedplannedoutcome

No sessions recorded yet. Finish a work interval and it appears here.

Why this one is accurate

A browser throttles a background tab, Chrome down to once a minute, so a timer that counts ticks is wrong the moment you switch away. This one records the wall-clock instant the interval ends and counts down in a worker thread. Sleep the machine, come back an hour later: the number is right and the alarm still fires on time.

Alerts

Six channels fire at once: a tone, vibration, a desktop notification, the tab title, the favicon, and a full-screen takeover. Sound is the one that fails quietly, so every other channel works with no audio at all.

The alert keeps signalling until a person turns up. A key, a tap or returning to the tab clears it; the timer moving to the next interval does not.

Background sound

Eight beds, generated in the page rather than streamed, so they work with the network off. They run during work intervals only and stop for breaks, and m mutes them along with the alarm.

Privacy

Everything runs in this page. No account, no network request, and nothing about your sessions leaves the machine. Your settings and history sit in this browser's local storage, and the button above clears the history. Full detail on the privacy page.