Work hours tracker · Progressive web app
Track your work hours
Clockflux is a lightweight time tracker for your working day. Tap once to check in, tap again to check out, and it keeps the running totals for you — today, this week, and across the year. It works offline, and it is free.
Start tracking →No required sign-up.
Track your day
A single slide toggle starts and stops the clock, with a live timer for the session in progress. Clockflux adds up every session in the day, shows the total in decimal hours or h:mm — whichever you prefer — and highlights your week in green once you are on track for the days elapsed so far. Weekends and days you have marked off are skipped automatically. Hit your daily or weekly target and it says so.
See the whole month
The calendar gives you a month at a glance: which days you logged, which you took off, and how the hours landed. Open any past day to correct a forgotten check-out, add a session you missed, or mark a stretch of days off in bulk.
Keep track of holiday
Set your annual allowance and Clockflux shows what you have used, what you have accrued so far, and what is still available. Choose whether your days accrue gradually through the year or are available all at once, and the balance prorates automatically if you started partway through the year. If your planned and used days are heading past your allowance, you get a warning before it happens.
Watch your work/life balance
The health view reads your recent weeks and tells you plainly whether you are on track, working under, or drifting into sustained overtime. A cumulative overtime chart shows the running balance against your weekly target, with a breakdown of hours versus target for each of the last several weeks.
Offline and installable
Clockflux is a progressive web app: install it on a phone, tablet, or desktop and it opens like any other app. The free version has no account and no backend at all — every session is written straight to your browser's local storage and never sent anywhere — so it works with no internet connection by construction, not just as a nice-to-have.
Free today, Pro coming soon
Everything above — the tracker, calendar, holiday allowance, and health view — is entirely free, works offline, and needs no account. That stays true for good: nothing here moves behind a paywall later.
Clockflux Pro Coming soon
Adds, on top of everything free above:
- Cloud sync across every device you use Clockflux on
- Custom light and dark themes
- Holiday carryover into the new year
- CSV, PDF, and calendar (.ics) export
- Unlimited history, with nothing archived or trimmed
- A custom daily target instead of the default 8 hours
Privacy
On the free version, everything you track is written to your own browser's local storage and stays
there. Clockflux keeps four entries: app for your sessions and
days off, appSettings for your holiday allowance and start
date, hoursFormat for whether you prefer decimal or h:mm, and
appVisited to remember that you have seen this page. None of it
is sent anywhere, and there is no account and no server holding a copy — which
also means that clearing your browser data for this site erases your history for
good. Just keep in mind that if you clear your cache, you might lose data. Think about Clockflux Pro ✦ to avoid losing anything.
The site uses Vercel Web Analytics to count visits. It records page views and referrers only. It sets no cookies, it does not follow you to other sites, and it never sees the hours you log — that data never leaves your device for it to see. To tell repeat visits apart it derives a hash from your IP address and browser details, which Vercel discards and regenerates each day, so it cannot be used to recognise you over time. That processing rests on our legitimate interest in knowing roughly how many people use Clockflux.
There is no cookie banner because there is nothing to ask you about: the site sets no cookies at all, and everything stored on your device is what the tracker needs in order to be a tracker.
Questions, or want your analytics data excluded? Email info@clockflux.app.
Last updated 6 August 2026.