Tabata interval timer with 20 seconds work and 10 seconds rest per round. Features a 3-second preparation countdown and configurable rounds. Everything runs locally in your browser — nothing is uploaded.
Repeating interval timer for workouts and training. Configure sets, work period, and rest period with automatic cycling. Everything runs locally in your browser — nothing is uploaded.
Configurable countdown timer with hours, minutes, and seconds input. Features start, pause, and reset controls with visual progress bar. Everything runs locally in your browser — nothing is uploaded.
Countdown to a specific date and time with live days, hours, minutes, and seconds display. Perfect for event countdowns and deadlines. Everything runs locally in your browser — nothing is uploaded.
Pomodoro Timer manages work and break intervals with fully customizable session lengths and auto-start options. Everything runs locally in your browser — nothing is uploaded.
Computes cost per mille (CPM) — the cost advertisers pay per 1,000 ad impressions. Includes platform presets for YouTube, Twitch, Facebook, Instagram, TikTok, Twitter, and LinkedIn with average rates, plus RPM (revenue per mille) calculation for creators.
20 seconds all-out work, 10 seconds rest, 8 rounds = 4 minutes, plus the 3-second prep countdown. Deviating (longer rests, fewer rounds) makes it interval training, not Tabata.
≈170% VO2max — unsustainable-beyond-20-seconds effort. If you can chat in round 6, go harder; if form collapses before round 5, scale to 15s work intervals first.
2–3 true Tabata sessions weekly with rest days between; daily Tabata overtrains most people within 3 weeks. Fill other days with Zone 2 cardio and strength.
3 seconds to set position prevents false starts and pulled muscles — most Tabata injuries come from launching cold into round 1.
No. Everything runs locally in your browser. Nothing leaves your device.